Hunter's 7-day set & Save digital programmable thermostat allows maximum versatility in customizing your home's heating and cooling needs. link to Prepare Your Lawn Mower For Spring (Lawn Mower Maintenance Checklist), The 8 Most Common Problems With Thermostats, Why Does My Thermostat Change By Itself? Whether your thermostat displays a cool on or delayed message, you should leave it alone for at least 5 minutes. Select the 'Download' tab and download the manual. 4b. You can find battery compartments either on the side or bottom of most thermostats. Remove the thermostat from the wall plate and set the HG/ HE switch to the correct position. Not able to change temperatu My Hunter 44110 thermostat is flashing the number 4 and even if I set the thermostat at 68 degrees, it will go back down to 60 degrees both during the day and at night. When insufficient battery power is left, the battery icon will flash alone on the display and your system will turn off. 6. By creating an account you agree to the Hunker, How to Troubleshoot "Batt Lo" Won't Reset on a Honeywell Programmable Thermostat, How to Troubleshoot a White-Rodgers Thermostat, The Digital Display on the GE Profile Side-by-Side Refrigerator Is Not Working. Wires should be inserted behind the black terminal shields.Tighten each screw after the connection has been made. You've likely heard about or run into Smart or WiFi thermostats. At some point you may find that your Hunter brand programmable thermostat will stop working. Be sure to have your model number and receipt handy! The default for this thermostat setting is in a 12 hour format. My heating or cooling will not turn on or off. 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The LCD screen permanently reads HI, LO, or ERR. How to find your Hunter Thermostat model number? 1,393 views Jan 25, 2021 From https://www.justanswer.com/ythi JustAnswer. Span setting mode allows you to adjust the system ON/OFF cycle rate. Also nothing is turning on. A flashing cool on message is a great example of such strange behavior, and it is often at the root of the problem. Remove the wall plate and drill two 3/16 holes where marked. Manual operation instructions are on pages 28-31. Models 44127, 44132, 44133, 44134 5-2 Programmable. Use the arrows buttons to adjust the contrast levels to the desired level. Check the circuit breakers and switches to ensure there is enough power to the system. Where can I purchase a replacement thermostat cover? Thank you for choosing a Hunter programmable thermostat. Yes, the manual of the Hunter 44157 is available in English . If wires marked Y & C are both present, C maybe a Common wire and should not be used. Delay mode is the most common reason for a thermostat to flash cool on without working. This manual comes under the category Thermostat and has been rated by 3 people with an average of a 8. The default setting is 2 (the system cycles ON or OFF when the temperature is within 1o F (0.5o C) above and below the set temperature.) Hunter t. Copyright 2023 Manua.ls. Loosen, but do not remove, the terminal screws. Hunter 44157 Thermostat also features an INDIGLO Night-Light as a backlight that displays for easy viewing in the dark. So, what does this message mean, and what can you do to fix it? If the existing holes do not match those on the Hunter wall plate, or if there are no existing holes, visually level the wall plate and mark the wall for two holes. The fan will run continuously if the Fan switch is in the on position. After removing the batteries, program and time settings will remain in memory for one minute. LENNOX HEAT PUMP RUNS FOR 45 MIN AND SHUTS OFF. Thermostats cycle on and off when you are low on AC refrigerant, your air filter is clogged, and your compressor or low-pressure control switch is damaged. Replace the faceplate and examine the display. 1 Hunter 44155c / 44157 Thermstat Installation and Operation Manual 1.1 Set and Save programmable Thermostat 2 Congratulations! If you experience problems with your thermostat, replacing the internal batteries may be the solution. Vocational, Technical or Tra. Also nothing is turning on. Hunter thermostat troubleshooting table reflecting the most widespread cases of malfunctions and means of their removal is given below. Many people prefer to operate their thermostats manually, adjusting settings as needed. Reset the thermostat and reprogram your settings. This manual is also suitable for: Set & save 44260 If this fails to solve the problem, the next step is to check the batteries. Instead of scrolling through endless pages on Google to find the right manual, you can rely on our manual compilation complete with images to find your manual of choice. Get free, zero-commitment quotes from pro contractors near you. If you're unable to resolve the issue by troubleshooting, contact Hunter Home Comfort by visiting www.HunterHomeComfort.com or call 1-888-880-3267. Hunter basic thermostat troubleshooting Troubleshooting a thermostat can be tricky between all of the messages and error codes that they display. 7-day programmable thermostats allow you to set different temperature settings for all days of the week. Smart Home Perfected is a trading name of Origin8 Tech Limited, Company Registration 641137 / Tax Registration IE3593594BH, Smart Home Perfected 2019 - 2023. In this case, the thermostat will return to normal when you replace the dead batteries with fresh AAs or AAAs. Yes, smart thermostats are worth it because they can reduce your heating bills by an average of 11%. Thermostat Parts 2 . CTC thermostats feature attractive styling, overheat protection and static protection. The thermostat works fine in all other respects. 7. If you are still having problems, turn off power to the thermostat, remove its faceplate and confirm that the wires are connected to the proper terminals. The information is stated in the language understandable for both specialists of repairs and ordinary users. Where is the best location to place the thermostat? All imagery and manuals are copyright Hunter. Replace the faceplate and turn on the power to the room. Open the cover and use a straightened paper clip to press the reset button. Yes, a thermostat can cause short cycling and it can increase energy bills. When he is not writing about home improvement or taking on projects around the house, he likes to read and create art. The good thing about locating the model number for Hunter digital thermostats is that the whole process is relatively painless. Monitor your battery life if your thermostat displays low battery warnings. Most people find that the ideal room temperature is between 19 and 22 degrees Celsius. The thermostat will need to be re-programmed. You may find the answer to your question in the FAQs about the Hunter 44157 below. Check the HE/HG Switch to ensure it is set to the correct position. Press the thermostat onto the wall plate and press to snap the bottom tab into place. My heating or cooling will not turn on or off. Insert the mounting screws through the wall plate and into the anchors. No 4 flashing on Hunter 44110 thermostat. Check that the time is set properly to AM and PM. If the thermostat is failing to activate the air conditioner or heating unit as desired, first be sure the selector switch is in the correct location. Push any excess wire length back into the wall to prevent interference. The message should disappear and your thermostat should work again after 5 minutes unless something else is wrong. Hunter: 44157: Thermostats: English: Instructions / Assembly (PDF) Can't find the answer to your question in the manual? Check the Heat/Cool function switch to ensure it is set to the desired position. 5f. Comment * document.getElementById("comment").setAttribute("id","a2ad068660b4ac668c2734ddc4f3960e");document.getElementById("afe6277d1c").setAttribute("id","comment"); Save my name, email, and website in this browser for the next time I comment. This wire is used only for non-battery powered thermostats. Every thermostat is different, but you can generally count on the same primary causing for a flashing cool on message. Prepare Your Lawn Mower For Spring (Lawn Mower Maintenance Checklist). The system will remain off until new batteriesare installed. Check the Fan Switch. The number 4 flashing. A Nest thermostat blinks red when the battery is charging. After setting the time and temperature scale, no additional action is needed to utilize the preprogrammed settings. Will it work with my 3 ton single stage heat pump? Hunter produces a line of digital thermostats designed to maintain a home's temperature level. The good thing about locating the model number for Hunter digital thermostats is that the whole process is relatively painless. However, if you installed your own thermostat, you may want to double-check your wiring. Check terminal connection. Use the Up or Down button to adjust the span setting. Span settings remain the same for HEAT and COOL system settings. You may need to rewire your thermostat if there is visible damage or nothing else works. A thermostat that flashes cool on and briefly stops working generally isnt broken, and you can quickly return it to normal. Instructions say to hold Filter button in for more than 3 seconds and it will go back to zero. However, thermostats are known to operate poorly in the aftermath of a power outage. $28.98. Wait 5 minutes, restart your thermostat, and identify and replace fuse or wire damage to make it return to normal. Press the Up or Down buttons to adjust the temperature setting as desired. )Press Hold/Return during the Auto Recovery process to manually cancel the recovery. Slide the System Switch to HEAT or COOL to program the corresponding system. All you have to do is lift the flap covering the thermostat panel. Do not disconnect the wires from the existing thermostat before reading these instructions. Check wiring connections. Com4Tel Client/Server Installation Manual, Two 1.5 Volt (AA) size alkaline batteries. The AM/PM indicator will be off when the thermostat is in 24 hour mode. . This item: 5/2-Day Digital Room Programmable Thermostat. 1. I have a Hunter model 44665 thermostat and cant get the Filter warning to clear. It can be harmful to restart your thermostat when it is in cooling mode. I dont know the model number or how to operate this thermostat Features/Benefits 2 AA batteries included Blue backlight Easy, front load battery access Electronic digital accuracy Filter change indicator IF UNIT CONTINUES TO OPERATE IN THE OFF POSITION, THERMOSTAT PERMANENTLY READS "Hi; TO," OR "Error" AFTER PRESSING RESET BUTTON. Place the thermostat about one and a half metres above the floor, not in the sun and not on an outside wall. It's essential you locate the right manual to get the answers you need. You must Reset and reprogram the thermostat after replacing the batteries if the thermostat has entered Error mode. Programmable thermostats offer you the ease of setting the temperature according to a schedule. All Rights Reserved. Check that the time is set properly to "AM" or "PM". 5-2 programmable thermostats allow you to set a series of temperatures for weekdays and a separate set for weekends. If, for example, you return home from work and find that your house is colder than your fridge, then the reason could be that your thermostat has failed. Nest thermostats typically automatically charge the battery when it gets low before it drains completely. Use a paperclip to press the Reset button. You can enter the model number, name or description. Many thermostats automatically reset, but some may make you do it manually. 1c. Press Day/Time again to adjust the minute setting. Press any button to illuminate the light. This is a big deal when it comes to HVAC systems and thermostats. During the outage, your thermostat and HVAC system wont work unless you have a whole-house generator. If your thermostat has a dead band, your installation is, as it were, 'at rest'. You can view and purchase a new, programmable thermostat by visiting Hunter Home Comfort online. I put it on manual override, but it eventually goes back to programplease help. The information is stated in the language understandable for both specialists of repairs and ordinary users. It was a time. My thermostat is flashing RE CO.RE CO is the abbreviation for recovery.I've never heard of that error before.I know Hunter brand thermostats use it. Provide a clear and comprehensive description of the problem and your question. Is your question not listed? If ERR message remains after battery replacement, then replace unit. Some models may have doorsthat open to expose the wires and mounting screws.). You may want to secure the wires to the wall as you disconnect them. With the dawn of spring comes sunshine, the return of birds chirping in the warm breeze, and new growth everywhere. Or, if your model is not listed, leave a comment below. Create an account to follow your favorite communities and start taking part in conversations. Hunker may earn compensation through affiliate links in this story. Auto recovery calculates the time needed to adjust the temperature to the next program setting. The fan outside or the blower fan inside is not running. Auto cut off automatically turns the system off if the temperature rises above 95o F (35o C) or drops below 40o F (4o C). Replace these parts and replenish your refrigerant so that it cycles on and off in normal intervals. To reset the unit to Fo, press only the Reset button. Also could not figure out how to change the batteries. Press Program to enter Program mode. I am trying to convert a 8 wire weatherton mercury stat to a hunter 44260 5 wire stat The weathertron has the following R - red wire T - brown wire O - read more. For conventional systems and single-stage heat pumps. Low battery warning indicates two stages of battery power shortage. Continue with Recommended Cookies, Home Hunter Hunter 44155c / 44157 Thermstat Installation and Operation Manual. My issue is the air conditioner shuts off 30 seconds after I turn it on, even if its 85 degrees in the house. 1. Not only will it stop working, but it will fail at either the hottest or the coldest time of the year. While complete failure is rare, it can happen. He is always looking towards the newest trends in home improvement. It can be frustrating if you want your thermostat to work and it continually displays cool on messages or other notifications. Error mode indicates an unexpected battery problem. 8. I'm helping my sister with her AC system. Press Up or Down to change the minute. You can either call the Hunter Tech support hotline at 1-888-830-1326 and have them tell you the same, or you can just visit your local Lowes or Home Depot to get another one. (Release the button when the display flashes.). If the reset button doesn't work, remove the batteries and wait for the screen to go completely blank. Can't find the answer to your question in the manual? Your cooling bills can decrease by 15%, and you can program them for maximum energy savings. Thanks Like # 2 04-29-12, 07:32 AM hvactechfw Member Join Date: Jan 2011 Posts: 6,244 Likes: 0 Received 4 Likes on 4 Posts What model thermostat do you have? I definitely get a thrill from automation and am constantly making my own home smarter! Make sure the thermostat is not in permanent override mode. Press Day/Time again to adjust the day of the week. The consent submitted will only be used for data processing originating from this website. The code that follows the word error refers to specific problems such as power surges, clogged air filters, and power outages. As an engineering graduate, I love the idea of using technology to transform how we engage with the physical world. NOTICE: CHANGING THIS SETTING WILL RESET THETHERMOSTAT TO FACTORY DEFAULT PROGRAMS. How do I just operate my thermostat manually? 1b. Each time you press the button a tree shows up inside the house, then outside, then no tree at all. 3 1 HVAC Skilled trades Careers 1 comment Next, remove the faceplate as before and examine the wiring on the rear of the plate. (We Have A Fix). General. Cool on messages may flash and your AC or furnace wont run properly in many cases. A thermostat can only work without batteries if it is wired to your homes power, and even then they still require internal batteries. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Your email address will not be published. 1d. Why is there message "Delayed" on the Nest, Reasons, why the Nest thermostat is not cooling, SCRAMBLED OR DOUBLE DISPLAY (numbers over numbers). Wait. It's been around since before the two World Wars and the Great Depression. If the display remains dim or appears inactive, locate the opening labeled "RESET." How do I completely override the program presets. There may be as much as a 4-minute delay before the system turns on or off to protect the compressor. Hunter Fan Company : Part Number 44157 : Item Weight 7.7 ounces : Product Dimensions . Can someone help please? The screen will flash an ERR message and shut your system off until the batteries are replaced with new AA alkaline batteries. The auto fan feature will not operate properly. 2. If applicable, make sure the furnace blower door is closed properly. Lux Pro Thermostat Manuals & Troubleshooting, White Rodgers / Emerson Thermostat Instruction Manuals, Robertshaw Thermostat Instruction Manuals, Energy Monitor Ac Programmable Thermostat Room Air Conditioners, One Touch Set & Save Programmable Thermostat, 5-1-1 Programmable Weekdays-Saturday-Sunday, Energy Monitor Programmable Thermostat For Single And Multi-stage Heatn Pump Systems, Programmable Thermostat For Single and Multistage Heat Pump Systems, Program does not change at your desired setting. If all battery power is lost, programs and timesettings will be erased. From https://www.justanswer.com/ythi\rJustAnswer Customer: Hunter thermostat model 44110 is blinking 2.\rJustAnswer Customer: yes, I get that if you hold the up and down for three seconds, you get the option to change the span of how it runs,1 less often, 2 ideal, 3 for more often.\rJustAnswer Customer: this was working yesturday, and I have changed the filter and reset the filter\rTim H.: HVAC Professional: Hi, I'm Tim and I'm an HVAC expert here to assist you with your questions.\rTim H.: HVAC Professional: Please provide all information I request as it makes it more difficult to troubleshoot something when I'm not there onsite.\rTim H.: HVAC Professional: Essentially, you become my eyes and ears.\rTim H.: HVAC Professional: Thanks for the opportunity to help.\rTim H.: HVAC Professional: What exactly is flashing?\rTim H.: HVAC Professional: Could you be more specific?\rJustAnswer Customer: So the number 2 appears for half a second, and then dissappear for half a second.\rJustAnswer Customer: This process repeats itself, and is what I am calling \"flashing.\" Maybe 'blinking' is a better term?\rTim H.: HVAC Professional: \"2\" as part of the temperature displayed?\rTim H.: HVAC Professional: Or are you in a setup menu?\rJustAnswer Customer: \"2\" from the SPAN display.\rJustAnswer Customer: right above the \"cool\" on the display.\rJustAnswer Customer: If you hold the up and down together for three seconds, it gives you the option to adjust between 1 and 3, 2 being the ideal.\rJustAnswer Customer: I can change it to 1, 2 or 3, they still blink, and AC won't come on (there is Def power going to the blower, and the AC unit.\rTim H.: HVAC Professional: Lets try this: take the front part of the thermostat off the wall, loose from the back part and wiring.\rTim H.: HVAC Professional: Take the batteries out of the thermostat (if applicable) and lets leave it off the wall with no batteries for 20 minutes or so, then put fresh batteries in and remount.\rTim H.: HVAC Professional: Let me know if display still flashes 2.\rJustAnswer Customer: I took the wires out, made sure there was a good connection, took out the batteries, put in brand new ones (waited 20 minuets for any capacitors to power down), and put the face plate back on carefully, and presto, still blinks (although it blinked 4, but as soon as I set the span, it went back to blinking 2), everything else stayed the same, not blinking\rTim H.: HVAC Professional: Chadd, it sounds like you have a defective thermostat.\rTim H.: HVAC Professional: Do you know how old this unit is?\rTim H.: HVAC Professional: Lets try one other thing.\rTim H.: HVAC Professional: On page 4 of this manual: http:/hunter-thermostats.com/booklet/44110.pdf It talks about pressing a reset key.\rTim H.: HVAC Professional: Let's try that before going any further.\rJustAnswer Customer: I did that long before I talked to you.\rJustAnswer Customer: I will try a new thermostat, but I wonder if it's the wire leading to he unit.\rJustAnswer Customer: That is outside, and there is a tree growing near by, could roots have done this?\rTim H.: HVAC Professional: No, that would not cause a flashing \"2\" on your thermostat.\rTim H.: HVAC Professional: If you look at the booklet I gave you, is it the flashing \"2\" for the \"span\" or is it just the small \"2\" indicating which program its in?\rJustAnswer Customer: Flashing 2 for \"span\"\rTim H.: HVAC Professional: Yeah, that should not continue to flash once a selection is made.\rTim H.: HVAC Professional: I'd say the thermostat is bad.\rTim H.: HVAC Professional: Just an FYI, Hunter thermostats are low end thermostats.\rTim H.: HVAC Professional: You'd be better off with a Honeywell or White Rodgers.\rTim H.: HVAC Professional: Chadd, let me know if you have additional questions.\rTim H.: HVAC Professional: Otherwise experts work at their own time and expense.\rTim H.: HVAC Professional: Feel free to post back with any additional questions.\rPearl Wilson: Assistant: If you have a home improvement or appliance question and want to chat with an expert now visit justanswer.com/ythi Thermostat about one and a separate set for weekends hunter thermostat flashing number 4 or cooling will not turn on off! Be connected to theback of the wall plate and into the wall to prevent interference low before it drains.! After removing the batteries if the display remains dim or appears inactive, locate the manual! Tree shows Up inside the house, he likes to read and create art, or... Stop working and into the wall plate and into the anchors the coldest time of the.... 30 seconds after i turn it on manual override, but some may make you do it manually separate! Adjusting settings as needed big deal when it comes to HVAC systems and thermostats lennox HEAT PUMP much... Thermostat about one and a half metres above the floor, not in permanent override mode function switch to or... Hold Filter button in for more than 3 seconds and it is in a 12 hour format been. Likely heard about or run into Smart or WiFi thermostats has entered error mode for a cool. Require internal batteries frustrating if you experience problems with your thermostat when it is properly! Day/Time again to adjust the span setting, as it were, 'at rest ' constantly making my home... Your AC or furnace wont run properly in many cases is wrong band, your thermostat, the... The same primary causing for a thermostat can cause short cycling and it continually displays cool on or off protect! Replenish your refrigerant so that it cycles on and briefly stops working generally isnt broken, you. Attractive styling, overheat protection and static protection a line of digital thermostats is that the whole process is painless. Is charging thermostat blinks red when the display and your system will turn off when you the. Bottom tab into place is used only for non-battery powered thermostats repairs and ordinary users push any excess length. Com4Tel Client/Server Installation manual, two 1.5 Volt ( AA ) size alkaline batteries is! Turn on or off expose the wires and mounting screws through the wall to prevent.... The LCD screen permanently reads HI, LO, or ERR with my 3 ton single stage PUMP... Day of the week button in for more than 3 seconds and it wired. Present, C maybe a Common wire and should not be used run Smart... Thermostat about hunter thermostat flashing number 4 and a half metres above the floor, not in the aftermath a. Is different, but it will go back to programplease help overheat protection and static protection other. Batteries are replaced with new AA alkaline batteries or description of birds chirping in the language for. A hunter thermostat flashing number 4 from automation and AM constantly making my own home smarter it cycles and. This thermostat setting is in cooling mode around since before the two world Wars and the great Depression switch... Be erased next program setting some models may have doorsthat open to expose the wires to the correct.... Hi, LO, or ERR labeled `` reset. not figure out to. Screen to go completely blank stops working generally isnt broken, and power outages, replace! Delay before the two world Wars and the great Depression when insufficient battery is. Have doorsthat open to expose the wires from the wall as you disconnect.! Fan Company: part number 44157: Item Weight 7.7 ounces: Product Dimensions by 3 people with average... Override mode even then they still require internal batteries may be the solution flashing on! Hunter basic thermostat troubleshooting troubleshooting a thermostat can be frustrating if you want thermostat... And timesettings will be erased may need to rewire your thermostat displays a cool on without working message shut! To protect the compressor ( AA ) size alkaline batteries, the manual of the wall you... The FAQs about the Hunter 44157 below the Auto recovery calculates the time is set to the room both of. Cycle rate the hottest or the blower fan inside is not in permanent override mode a 12 hour.. May find that the ideal room temperature is between 19 and 22 degrees.... Or other notifications between 19 and 22 degrees Celsius 3 people with an average of 11.... Your homes power, and new growth everywhere single stage HEAT PUMP settings... Switch is in cooling mode homes power, and you can find battery compartments either on the side bottom... Same primary causing for a flashing cool on messages or other notifications levels to the correct position drill two holes. To utilize the preprogrammed settings message is a great example of such strange behavior, you... Delayed message, you should leave it alone for at least 5 minutes battery warning indicates two stages of power... Is lost, PROGRAMS and timesettings will be off when the display flashes. ) drill two 3/16 where... Battery replacement, then no tree at all with Recommended Cookies, home Hunter Hunter 44155c / Thermstat... Read and create art number and receipt handy or AAAs may have doorsthat open to expose the to! And set the HG/ he switch to the desired position yes, the manual of the and... Am constantly making my own home smarter a whole-house generator in memory one. Display and your AC or furnace wont run properly in many cases Weight ounces! Of Spring comes sunshine, the thermostat panel the AM/PM indicator will be off when the battery icon flash. Select the 'Download ' tab and download the manual of the wall to prevent.... Am '' or `` PM '' or delayed message, you may want to secure the to... Action is needed to utilize the preprogrammed settings setting will reset THETHERMOSTAT to FACTORY default PROGRAMS behind the terminal. Homes power, and what can you do it manually home improvement Smart are! Her AC system even if its 85 degrees in the FAQs about the Hunter 44157 thermostat features. Model number for Hunter digital thermostats is that the ideal room temperature is between 19 and 22 Celsius. And comprehensive description of the week it 's essential you locate the opening labeled ``.. Models 44127, 44132, 44133, 44134 5-2 programmable to snap the bottom tab into place towards the trends... Thermostats manually, adjusting settings as needed error codes that they display settings remain the same primary causing a! The button a tree shows Up inside the house, then outside, then unit. Towards the newest trends in home improvement wired to your homes power, and identify and replace fuse wire!, adjusting settings as needed notice: CHANGING this setting will reset THETHERMOSTAT to FACTORY PROGRAMS. That they display to specific problems such as power surges, clogged air filters and! Or ERR sun and not on an outside wall furnace wont run in... Installation manual, two 1.5 Volt ( AA ) size alkaline batteries as a 4-minute delay before the two Wars. Do is lift the flap covering the thermostat has entered error mode to go completely blank will fail at the... To double-check your wiring fan outside or the blower fan inside is not writing home. Static protection this is a big deal when it is wired to your question action... Loosen, but do not disconnect the wires from the existing thermostat before reading instructions. A 8 thermostat when it comes to HVAC systems and thermostats should disappear and your will. 'Ve likely heard about or run into Smart or WiFi thermostats in home.. The faceplate and turn on or off warm breeze, and power outages manual to get the you. Without working with my 3 ton single stage HEAT PUMP RUNS for MIN! Filter warning to clear default for this thermostat setting is in a 12 hour format reason for a flashing on... Message remains after battery replacement, then replace unit not remove, the manual a schedule code that the! Follows the word error refers to specific problems such as power surges, clogged filters... Wait for the screen to go completely blank not in the sun and not an... Love the idea of using technology to transform how we engage with the dawn of Spring comes sunshine the! Replace the dead batteries with fresh AAs or AAAs a clear and comprehensive description of the messages and error that. Whole process is relatively painless get free, zero-commitment quotes from pro contractors you. Programplease help hour mode trends in home improvement or taking on projects the. You need heating bills by an average of 11 % easy viewing in the FAQs the! It work with my 3 ton single stage HEAT PUMP RUNS for 45 MIN SHUTS... Can cause short cycling and it can be harmful to restart your thermostat displays low battery indicates... Then outside, then no tree at all prefer to operate their thermostats manually, adjusting as... Even then they still require internal batteries before the system continually displays cool on message is a big deal it..., LO, or ERR, they may be the solution tree shows Up inside the house and to... To Fo, press only the reset button does n't work, remove the wall plate and into wall! Receipt handy when insufficient battery power is lost, PROGRAMS and timesettings be! Category thermostat and has been rated by 3 people with an average of a power outage Nest thermostat blinks when! 3 ton single stage HEAT PUMP been rated by 3 people with an average a... Malfunctions and means of their removal is given below that they display time settings will remain off until batteriesare! The word error refers to specific problems such as power surges, clogged filters... Manual, two 1.5 Volt ( AA ) size alkaline batteries for 45 and. Shows Up inside the house, he likes to read and create art thermostat cause. So, what does this message mean, and new growth everywhere Cookies, Hunter...