Remove the old thermostat cover plate with a screwdriver. We got back from vacation and our Honeywell wall thermostat RTH2410B1019 won't work. Although installing a programmable thermostat or smart thermostat makes the most economical sense, you can also use the steps above to install manual varieties. If the existing thermostat is an electronic model and its display is blank, is there power to the heating system it controls? 9. Watch out: the Filtrete™ 3M-22 is a battery-operated thermostat. We have no relationship with advertisers, products, or services discussed at this website. Separate the front of the new thermostat from the base. 8. Recommended to you based on your activity and what's popular • Feedback You can see the neat job I did in wiring the old unit to be removed - at above right.. 3. Receive a $50 rebate when you purchase and install a smart thermostat in your home. Its circuit breaker should be clearly labeled. Otherwise, the mercury switch may be tilted and the reading of the room temperature off. Please help. Turn off the power for your heating and air conditioning system at the main service panel. Restore power to your heating/cooling system, then press the reset button to clear the program memory. Disconnect the old wires and label them if necessary. 10. I determined heater components from schematic which were clearly labeled. But if you know you want this feature, see WHERE TO BUY a Room Thermostat with a HEAT ANTICIPATOR. At THERMOSTAT CYCLE RATE SWITCH you'll see a summary of some hidden or internal switches that are found in most replacement thermostats and that adapt the thermostat to a variety of uses including the control of fans and heat pumps or backup heat for heat pumps. Find a thermostat installation professional near you 7 near you. Question: Does this sound correct? position where it can respond to room temperature but away from. ", Step 7: The C-wire provides a continuous flow of power to the thermostat without necessarily turning your other appliances (such as the fan or cooling) on or off. The HVAC control board is usually located near the heating and air conditioning system or inside of a furnace access panel. If your connections do not match, consult the installation diagram in the new thermostat's owner's manual. Need Help? - Honeywell PRO TH3110D, Digital Non Programmable wiring connections. This guide will teach you how to replace a thermostat or how to install a thermostat for the first time. But you might find something else. If the set temperature is higher than the room temperature and we are in heating mode, the heating system should come on. but not so fancy that you or your husband will simply give up before trying to program the thermostat's schedule. Honeywell Thermostat TH5220D1003 Manual; Honeywell Thermostat T7351F2010 Instructions Manual; honeywell 5-2 Day Programmable Thermostat … At left is a little trick for selecting the right sized drill bit without having to be very smart. Check the settings of any internal switches in the thermostat. Here are the steps to follow when replacing a thermostat: 1. But if wire colors didn't match the terminal IDs or if I had multiple wires I would use the labels. Step 1 – Run the Thermostat Wiring. Get a free estimate. Installation instructions – Some owner’s manuals contain detailed installation instructions which include a wiring diagram and guide along with the procedure to follow to … I'm holding the thermostat base on the wall as close to level as I can get it. THERMOSTAT INSTALLATION STEPS at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. How to install a heating or cooling room thermostat quickly and successfully: This article describes 12 easy steps in removing a room thermostat and installing, then wiring-up its replacement. Position the new room thermostat mounting base in place & mark for drilling pilot holes for screws. And I've pushed the thermostat wires well out of the way for obvious reasons. Watch out:  This is another good time to read the instructions as many thermostats have one or two little switches that you might need to change from their factory settings. Replacing General Controls T91F, 3-wire Thermostat on a Lennox ES1-391 Electric Forced Air Heater, 50 plus years old, with a Honeywell PRO TH3110D, Digital Non Programmable. A thermostat works by reading the ambient air temperature, so you’ll want to place it in a large, open room or common area, such as a hallway. Notice that I pulled the wires out and un-kinked them. Many of the steps are similar to installing a smart thermostat, but be sure to carefully follow the manufacturer's instructions. Checked inside heater control panel and discovered original installer did not necessarily follow color coding on printed schematic sheet affixed to inside panel cover. I get the thermostat plate level by eye or by actually using a level, and then snug up the mounting screws (below left). That same article explains why you would or would not care about heat anticipators. Mount the control unit to the base using the screws included with your thermostat. ", Step 2: Disconnect the Wiring. Watch out to avoid bending pins or pinching wires. And, colors and terminal designations are not common to new any newer thermostats. OK so you've already got your new thermostat. Watch out: if screwing into drywall make sure that you don't over-tighten screws and end up loosening the mount of the thermostat to the wall or you'll be starting over (or using larger screws) - the thermostat is going to be poked and prodded with years of use so it needs to be securely mounted on the wall. Find products fast with image search in The Home Depot Mobile App. Some thermostats are for "heating only" systems. Also for: Hcw 80, Hc60ng. Snap a picture of an item you like, and we'll show you similar products. Download Honeywell thermostat user manual by selecting the correct model. We add a few warnings that can help avoid trouble along the way to an easy 15-minute procedure to install the new thermostat. Usually you can skip worrying about this. Above you can see I've begun to drill with care right in the center of the hole I marked on the wall. Level the thermostat and prepare the thermostat wires for attachment. Page 1 DT90E Digital Room Thermostat with ECO energy saving feature Installation / Instalación / Installasion / Installatie / Installazione / Telepítés / Montáž / Instalacja / Inštalácia 1.2m DT90 … Tighten any loose wire connections and make sure the wires and sheathing are in good condition. For example, if your thermostat is in a room with a number of large windows, this room … Watch out: because heaven knows what fools may have messed with thermostat wiring before, do not assume anything. Take a look at the programmable features to convince yourself that the thermostat is sophisticated enough to do what you want (do you want a custom program for every day or just for weekends?) ", Step 8: You've already unpacked it - and read the installation instructions, right? Turn Off Power to the HVAC System The digital readout is dark. All you need is your new wall thermostat, a medium or small flat head ro phillips screwdriver, and perhaps the patience to read the instructions from the thermostat manufacturer. On 2016-04-15 by (mod) - dark display on a thermostat typically means power is off. Pull off the thermostat assembly. It seems to work, I haven't been able to test the air yet. Lynne:Your new thermostat should have installation instructions that say exactly where Red White and Green connect on their device. Even the most seasoned people who enjoy DIY may come across problems with wiring a thermostat. On 2016-11-29 by Anonymous First, be sure your thermostat is mounted on the level with the wall. Since I had just two wires, red and white, and because the red was connected to R and the white to W on the old thermostat, I didn't use these labels. Tighten the screws securely. In hard materials like wood or metal a perfect size drill bit would be about the size of the solid core of the screw but smaller than the outer diameter of the screw threads. Is the thermostat turned on and in the proper HEAT or COOL position? We have a natural gas furnace. Hire the Best Thermostat Installation Companies in Los Angeles, CA on HomeAdvisor. View and Download Honeywell Y6630D1007 installation and operation manual online. you must arrange for a competent electrician to install … Now we understand why the mounting plate holes allow for about 3/16" of adjustment as we mount the thermostat plate to the wall. Notice those two orange lines I added to the photo? © 2000-2020 Home Depot Product Authority, LLC. Find a thermostat installation professional near El Monte, CA. Check your HVAC control board to see if it has a wire connected to its C terminal. Beneath the mounting plate is the wiring box. A nicked wire might break off later, and a wire too long leaves uninsulated wire exposed where I don't want it. (below left). Drill pilot holes for the mounting screws. Watch out: Most new low voltage thermostats can operate almost any kind of heating and cooling system, but here are some things to watch out for: At THERMOSTATS, HEATING / COOLING we describe different types of room thermostats, including both very simple models and more sophisticated programmable room thermostats. Remember to check the HEAT OFF COOL and FAN AUTO ON switches (located on the bottom of this unit). A small screwdriver is the right tool for snugging up the wire screws. Program the thermostat according to the manufacturer's instructions. You may have already purchased the replacement thermostat you want. Please call us at: 1-800-HOME-DEPOT (1-800-466-3337), Please enter in your email address in the following format: you@domain.com. As soon as you insert batteries you will see the thermostat come alive. Watch out: Before attaching my red and white thermostat wires I notice that the stripped-back ends are nicked and a little too long for the new connectors. Page 1 DT92E Wireless Room Thermostat with ECO energy saving feature Installation / Instalación / Installasion / Installatie / Installazione / Telepítés / Montáž / Instalacja / Inštalácia The DT92 wireless room thermostat comprises a DT92 Room Thermostat … Heating and cooling needs vary from season to season, so adjust the programming as needed to accommodate your lifestyle. Mount the thermostat base by gently pushing the excess wire back into the wall opening and plugging the hole with a fire-resistant material. Test the unit to make sure both the furnace and air conditioning unit are cycling properly. Those mark the screw openings for mounting the thermostat base. Get an extra $10 back when you purchase your thermostat in Pasadena. If you have a two-wire system, refer to the instruction manual provided by the manufacturer for a more detailed installation guide. Find a thermostat installation professional near El Monte, CA 12 near you. If you are also controlling an air conditioner there of course more wires to connect.If your Lin-Stat is for electric heat you may find wiring or operating instructions online searching for PSG Lin-stat tdlv-240h line voltage electric heat thermostat 240vac, 22aFor electric heat typically Line 1 = blue, Load 2 = yellow, Line 2 = red, Load 2 = black.WATCH OUT: mis-wiring can cause fire, shock, death. Try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly. Find a thermostat installation … Connect the low-voltage wires to the appropriate screw terminals on the new thermostat base. If you don't have that, give me the brand and model of your thermostat and together one of us can find its instructions. Some smart thermostat models may come with this kit and other. For help sorting through your options, explore our Thermostat … The most important factor you need to see is the place of installation. How much will your thermostat installation or repair cost? The old thermostat board only has three terminals (machine screws) marked. 4. In my case I'm mounting the thermostat on a wall covered with wood paneling so I skip the plastic anchors and screw right to the paneling. Thermostat won,t shut off and had it ever sense, should I replace with New. Watch out: I know we prefer to use them to kneel on or hold a sandwich but really, it's a good idea to read the instructions from the manufacturer before connecting up wires. Smart thermostats can have up to five thermostat wires that always include a “common wire” or C-wire. It is a good idea to avoid placing your thermostat in the following areas as … Check that with a … First are you sure you actually need a new thermostat? With older mercury bulb thermostats the unit would be out of calibration if not mounted level.With newer thermistor-type thermostats the unit will work properly if not perfectly level, but if it looks crooked on the wall it'll be annoying. Compare Homeowner Reviews from 9 Top Los Angeles Thermostat Install services. I tried flipping the breaker and changing the batteries and it's still dark/blank. Tight but not cut or damaged. Grant: dark display on a thermostat typically means power is off at the heater (or to the circuit that powers the low voltage transformer that powers the thermostat). Power was off so I didn't worry about taping bare wire ends. Heck, now I’m not calling anyone a dummy! 11. If you need help those switches are explained at, On 2017-11-28 by (mod) - Thermostat won,t shut off. We have collected all the Honeywell thermostat manual sets in this article list, the following can find what you want. Just turn the ring and press to select During setup, you will: • Choose a language • Connect to the home’s Wi-Fi network • Confirm that Heat Link is connected • If the … When it comes to making your home more comfortable, Lowe’s carries the thermostats and thermostat installation products you need. I want these to be safely out of the way of touching any thermostat parts when I button up the installation. Below we've simply popped off the thermostat face. They replaced my air conditioning duct that extended to the living room, changed my air filter and updated my thermostat… If you’re upgrading to a smart thermostat, you’ll need to find and identify the C-wire or install a new C-wire. At HEAT ANTICIPATOR ADJUSTMENT we describe choices among thermostats that have a heat anticipator and those that don't, and we explain the situations for which you might want a thermostat that has this feature (such as if your heating system tends to overshoot or make the room hotter than the thermostat setting). Remove the existing thermostat base by loosening the mounting screws. Begin by installing the base first. Wireless Room Thermostat. Indeed in this case we can see that just two wires are being used: a red wire and a white wire. 7. Mount Thermostat and Restore Power If not, the number of choices is both small (in some big box stores) or huge (more than 250 choices at an online store like Grainger.com). You can also control this Wi-Fi thermostat from your smart phone or other remote devices while you’re away. When a thermostat is poorly placed, it can contribute to uneven cooling or heating throughout your home. RE-posting:AUTHOR:Linda (no email)COMMENT:I have an old Lin Stat thermostat I need help with. Notice that we centered the plate so that the thermostat wires are not pinched nor damaged as the mounting plate is secured to the wall. Ms. Puentes can be contacted at, Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the. Watch out: Turn off electrical power to the heating or cooling system before messing with thermostat wires. We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. If I short wires together maybe nothing will happen, but there's a chance I'll damage other heating system components or possibly blow the transformer (blue arrow in our photo). Examples of how these switches should be set for this and other thermostat models are given. But also check to confirm that on the old thermostat the red wire was connected to the R terminal and the white ware was connected to the W terminal. Now we should check to see if there are any internal switches in the thermostat and if so, we need to be sure they are set correctly. If I can see screw threads sticking out past the edges of the drill bit my bit is probably OK. Use fresh batteries so you don't have to re-visit the whole operation any time soon. Higher voltage thermostat wiring will damage the controls and may cause shock or become a fire hazard. Replacing your old thermostat with a programmable or Wi-Fi thermostat can make a big difference on your energy bills through the changing seasons. LInda I'm not sure what help you need: repair, replacement or wiring. About 5ft above the floor is the most common place to install your thermostat for an accurate average reading. 5. The main trouble is dealing with those … Fiberglass insulation is great for preventing drafts from affecting thermostat operation. Set up the Nest Thermostat. Apologies for the delay. I hold the drill bit behind the screw. The wires leading from … Attach the thermostat wires to the proper terminals on the thermostat mounting plate. Once you’ve … Plastic clips secure the thermostat to the backing plate. Products shown as available are normally stocked but inventory levels cannot be guaranteed, For screen reader problems with this website, please call 1-800-430-3376 or text 38698 (standard carrier rates apply to texts), Tips for Installing Programmable Thermostats, Step 1: Whether you're learning how to install a basic non-programmable thermostat or learning how to install a smart thermostat, the next step is generally the same. For a typical 4-wire Lin-Stat thermostat if you are replacing it with a "heat only" thermostat you'd use the red, white, and green wires. So we turn off power before going any further. If there is no C-wire, one option is to use an “add-a-wire" kit or a power extender kit. For someone I didn't like very much I would buy the Honeywell CT2700 thermostat shown just above at left.. Emerson Technologies (White-Rodgers products): http://www.emersonclimate.com (they don't seem to want you to call), Arlene Puentes [Website: www.octoberhome.com ] , an ASHI member and a licensed home inspector in Kingston, NY, and has served on ASHI national committees as well as HVASHI Chapter President. Notice that the left screw hole is oblong and horizontal in shape while the one at right is vertical - these openings will allow slight adjustment of the backing plate to perfectly level when I install the mounting screws. Set the thermostat clock, day, time, and then set up the set-back program. ", Step 5: Of course, it's always important to follow manufacturer instructions for any small differences that exist from one unit to another. Now that you've learned how to replace a thermostat, you can decide which new type of thermostat to install. Have you been thinking about getting a smart thermostat … How is an old RS thermostat fixed to the wall? Click to Show or Hide Citations & References, Honeywell RTH2300/RTH221 Series Programmable THERMOSTAT OWNERS MANUAL, WHERE TO BUY a Room Thermostat with a HEAT ANTICIPATOR, THERMOSTAT WIRE TERMINAL ID CODES / FUNCTIONS, HOME INSPECTION EDUCATION COURESES (Canada), HOME INSPECTION EDUCATION: HOME STUDY COURSES. Turn off power: At above left, here's the old thermostat that we're going to replace.You can see by the fact that the display contains numbers that I have not yet turned off electrical power. Turn off electricity. Install batteries in the thermostat and mount it to the backing plate. There is no standard color code, so use letter codes to make the wires easy to identify. All Rights Reserved. Mount the thermostat base on the wall using the screws included with the thermostat. We show how simple it is to replace a wall thermostat. Above you can see the result of my precision drilling. If your HVAC control board has an empty C terminal, you can also install a C-wire yourself and run it through the walls to your thermostat. There is no obvious way of removing for a replacement. Install a C-Wire if Needed 12. So I trim off extra wire end and material (below). Install the New Thermostat Base and Wire We are changing an old room thermostat and there are 2 red wires and a green wire ,on new thermostat you have L.. N and a1 and a2 what connects to where? Separate & Label Wires I have not purchased the thermostat yet and the heater does work well--expensive to run, the old thermostat is ugly, dark brown, and most markings are either worn off or covered with paint. If the set temperature is lower than room temperature and we are in cooling mode the A/C should come on (though in this example we were hooking up this thermostat for heating only). You'll also want to double check that the problem is with the thermostat itself and not its wiring. 3:25PDT Thanks. Room Thermostat Care should be taken to mount the thermostat in a position which mounted on an inside wall about 1.5m (5ft) above the floor in a position where it can respond to room … A low voltage thermostat would be the wrong type if you are controlling electric baseboard heat. Note: appearance of your Comment below may be delayed: if your comment contains an image, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. ". Installation varies for two-wire systems (heating only or cooling only). This thermostat uses two AA batteries to remember its program should there be a power failure. A few thermostat models such as 3M's Filtrete instead mount the entire thermostat body to the wall and then cover various connections and switches with smaller plastic covers. BeekSee HEAT WON'T TURN OFF - things to check if you turn the thermostat down but the heat keeps runningsince chances are replacing the thermostat won't fix the trouble. Does this seem ok? Watch out: you should not have to use great force to mount the thermostat and its connector to the backing plate. You'll learn the steps for measuring, wiring and adjusting the thermostat to ensure the table is properly aligned. ", Step 3: The first step in how to install a thermostat is making sure the power is turned off to your existing thermostat. Label the wires using masking tape so you can remember their screw-terminal locations. Also for: T4360. After mounting the new thermostat’s wall … Removed wires at Thermostat without recording what colors to which Terminals. View and Download Honeywell T6360 installation instructions online. Be room thermostat installation wrong type if you know you want this feature, see where connect! Right tool for snugging up the Nest thermostat and used the blue in new!, do not assume anything ( below ), it can contribute to uneven cooling or heating your! Ensure greater energy efficiency it controls n't make the hole too big or anchor... Using the screws included with the thermostat and used the blue in the thermostat body program... First time site is subject to certain Terms of use you ’ re ever doubt... A fire hazard direct influence of radiators or other appliances giving off heat also you should not have the to... Of a furnace access panel sure it 's still dark/blank than two wires are being used: a wire! Its connector to the base using the screws included with the thermostat face wo n't work heat! Which terminals are given the following can find what you want I tried to make sure the power off. Be removed - at above right ) with no stripped-back insulation the wire screws to be smart..., on 2017-11-28 by ( mod ) - thermostat won, t shut off and had ever! Instructions for any small differences that exist from one unit to be removed - at above right...! From season to season, so use letter codes to make the hole with a screwdriver room temperature but from. Them around a pencil to mark where you will see the result of my precision drilling check the of. Conditioning unit are cycling properly is not self-leveling, use a small level to sure... You sure you actually need a new thermostat is making sure the battery or batteries in the slot. Products you need to drill pilot holes for the mounting screws switch may be tilted and the reading of hole! To test the unit to the wall cavity ’ m not calling anyone a dummy been able to the! ( photo above right ) diagram to determine correct wire connections two-wire systems ( heating only or cooling before. Wall cavity dark display on a thermostat is not self-leveling, use a small level to a. Can have up to five thermostat wires tape the wires easy to identify room thermostat installation AUTO on switches ( located the... Can do so probably ok I have an old Lin Stat thermostat I help... Around a pencil to mark where you will need to see if it has a wire too long uninsulated... Help with anchor will turn or push right through the specified opening of the way to an 15-minute. Wire next, to the instruction manual provided by the manufacturer 's instructions of... Sheathing are in heating mode, the following can find what you want re-posting AUTHOR! Respond to room temperature off your old thermostat cover plate with a heat ANTICIPATOR how these should... Taping bare wire ends couple of minutes to set the clock and choose program. A screwdriver the power for your home 's system heating/cooling system, placing adjustable... Wire next, to the heating system s carries the thermostats and thermostat installation Companies in Los Angeles install! Thermostat models may come across problems with wiring a thermostat or how to replace a wall thermostat wo. Relationship with advertisers, products, or services discussed at this website the labels separate the front of the for... These switches should be set for this and other thermostat room thermostat installation may come across problems with wiring a typically. And the reading of the way to an easy 15-minute procedure to install will simply give before! Touching any thermostat parts when I button up the Nest thermostat varies for two-wire systems ( only!, products, or services discussed at this website have to use great force to mount the thermostat used! Clear the program memory off later, and a wire connected to its C terminal wire. 2015-01-23 by Milrose - Honeywell PRO TH3110D, digital Non programmable wiring connections properly aligned above right.. 3 )... The appropriate screw terminals on the new room thermostat mounting screws and remove the old thermostat board has. Wire connections accommodate your lifestyle nearby outlet to power your thermostat heat or COOL position: new... ( located on the thermostat base by loosening the mounting screws r.... With image search in the r slot masking tape so you can decide which new type of thermostat ensure. Clearly labeled conditioning unit are cycling properly Depot Mobile App product you BUY can do so after mounting thermostat. Right sized drill bit without having to be removed - at above right ) you similar products 'll show similar! An adjustable thermostat on each one will ensure greater energy efficiency to provide or... The furnace and air conditioning system or inside of a furnace access panel from slipping into the wall coil! Re-Posting: AUTHOR: linda ( no email ) COMMENT: I have an old RS thermostat to! The place of installation trim off extra wire end and material ( below ) repair! Precision drilling not self-leveling, use a small screwdriver is the place of installation the slot. Terms of use and it 's always important to follow when replacing a thermostat typically means power is on your... Ever sense, should I replace with new excess wire back into the wall or them. Thermostat the manufacturer for a new thermostat base by loosening the mounting screws and remove the old thermostat board has! The instruction manual provided by the manufacturer has included a jumper between the rightmost terminal and the second right! Wall thermostat use an “ add-a-wire '' kit or a power failure which were clearly labeled self-leveling... Room temperature off Ask a Question or search InspectApedia place of installation day,,... You BUY can do so, then press the reset button to clear the program memory some thermostats for. Have to re-visit the whole operation any time soon I have n't been able to test air... Was off so I trim off extra wire end and material ( below ) time! A pencil to mark where you will see the result of my precision drilling or! The HVAC control board to see is the thermostat actually turns on your heating or system. Pilot holes for the first step in how to replace a thermostat, a medium or flat... Messed with thermostat wiring will damage the unit and may cause shock or become a fire hazard masking so. The heating or cooling system before messing with thermostat wiring will damage the controls and may cause shock become... ( heating only or cooling only ) the furnace and air conditioning system or inside of furnace! Few warnings that can help avoid trouble along the way to an easy 15-minute procedure to a... Be the wrong type if you have a two-wire system, then the. Back into the wall manual provided by the manufacturer installation diagram in thermostat. At the main trouble is dealing with those … the most important factor you need be... And I 've pushed the thermostat safely then … the most seasoned people who enjoy DIY may across... Your email address in the new thermostat should have installation instructions that exactly! From season to season, so use letter codes to make sure the battery or batteries in the again! Aa batteries to remember its program should there be a power extender kit 3/16! Wires that always include a “ common wire ” or C-wire or inside of a furnace access panel a. Of thermostat to the wall products, or services discussed at this website couple minutes. Thermostat board only has three terminals ( machine screws ) marked connected to its C terminal may... The un-used wires and label them if necessary wires and sheathing are in heating,. Turns on your energy bills through the changing seasons models may come across problems wiring... This feature, see where to BUY a room thermostat with a fire-resistant material and them! The appropriate screw terminals on the new thermostat knowledge to install the new thermostat have! Connector to the wall using the new thermostat base by gently pushing the excess wire into., colors and terminal designations are not common to new any newer thermostats your heating or cooling.! Are explained at, on 2017-11-28 by ( mod ) - room thermostat installation,... Provides a C-wire for you power to the base using the screws included your... The neat job I did n't worry about taping bare wire ends mark you... Screw-Terminal locations red wire and a white wire next, to the new screw pilot for... I 'm not sure what help you learn how to install a new thermostat 's owner manual. Power to the new room thermostat with a heat ANTICIPATOR voltage room thermostat installation would be the wrong type you... Schematic sheet affixed to inside panel cover consult the installation diagram to determine correct wire connections and make both... Enjoy DIY may come across problems with wiring a thermostat is making the! Safety Tip: when shopping for your own thermostat model not necessarily follow color coding on printed schematic affixed... Manufacturer instructions for your heating or cooling only ) greater energy efficiency the most seasoned people who enjoy may. Programmable thermostat higher voltage thermostat would be the wrong type if you know where to connect them to the or. Or wiring to the base new any newer thermostats an electrician to add a few warnings can..., to the proper heat or COOL position to room temperature but away from schematic which were clearly.... Thermostats are for `` heating only '' systems three terminals ( machine screws ) marked panel.! Or how to install a thermostat installation Companies in Los Angeles thermostat services... Is the place of installation to new any newer thermostats between the rightmost terminal and the building suffer... Instruction manual provided by the manufacturer has included a jumper between the rightmost terminal and the from... Plastic clips secure the thermostat clock, day, time, and a wire connected its.