My t stat model #1F88-300. when Iset the thermostat to the desired temp, the condensing unit comes on and cools. the problem is after a few minutes the compressor stops running but the air handler con …You can try this with the thermostat as well and have it successfully reset by power cycling it. In order to power cycle the thermostat, you have to remove the thermostat from the base and then also remove the batteries. Let the thermostat stay in this position for sometime (say around 15 seconds ). After this you can put the batteries … Is the “Cool On” message solid (not blinking) on the thermostat display? Verify your thermostat’s wiring. Check that the wires are connected securely to the terminals. Remember, the color of the wires only relates to the terminals they are connecting. Reference: The Y terminal on your thermostat controls the primary (1st stage) cooling. CLICK LINKS BELOW FOR ITEMS IN/RELATED TO VIDEO🍒 Here's my thermostat https://amzn.to/3cMWO9X🍒 Upgrade to this one? https://amzn.to/3Sc8L9v🍒 This one al...If the thermostat is set to cool, but the system is not turning on, check if there is a delay. Some systems have built-in delays to prevent short cycling. Typically, when any HVAC system is undergoing system time off delay, there will be a snowflake icon blinking on the thermostat display. Sometimes it will just be the word ‘cool’ or the ...Sep 23, 2023 · Verify the fan setting: Set the fan setting to “Auto.”. This ensures that the fan will turn on automatically when the cooling system is activated. Double-check the mode and time settings: Ensure that the thermostat is correctly programmed with the desired mode and time settings. Incorrect settings can cause the “Cool On” message to appear. Hello I have a Honeywell T4 Pro that was flashing "Cool On" on the right side of the screen. Nothing seems to help I did replace the batteries and it stopped blinking and now it is solid "Cool On" When I run the test it does kick the AC on. So the AC itself is fine. It seems like it is something with the thermostat. It has fresh batteries.After 10-15 seconds, place the batteries inside your thermostat again, and that will be enough to make it work like before without having any sort of issues. Replace Batteries. Another thing that you need to try if you have run a power cycle and the thermostat is still not working is replacing the batteries on it.2 Power Cycle Your Thermostat. 2.1 Remove The Thermostat From The Subbase. 2.2 Take Out The Batteries. 2.3 Reinsert The Batteries And Reattach The Thermostat To The Subbase. 3 Reset The Thermostat. 3.1 Switch The Thermostat To The Off Position. 3.2 Locate The Breaker That Powers Your HVAC System And Turn It Off.Normally when the “cool on” light starts flashing on your Honeywell thermostat, it’s nothing to worry about. This usually means that the air conditioning unit is starting to get to work. If you leave it for a couple of …Look for the power button on the thermostat and press and hold it for about 5-10 seconds until the display turns off. Once the display is off, release the power button and wait for a minute or two. Then, press the power button again to turn on the thermostat. This should reset the controls and make them responsive again.Temperature settings do not change. Make sure heating and cooling temperatures are set to acceptable ranges: • Heat: 40 °F to 90 °F (4.5 °C to 32.0 °C) • Cool: 50 °F to 99 °F (10.0 °C to 37.0 °C) “Cool On” or “Heat On” is flashing. • Compressor protection feature is engaged.Flashing lights on your thermostat are a sign of this problem. • The Cool On display on your thermostat may flash for a few minutes after you replace the batteries. • A Cool On flash might sometimes be a thermostat’s way of informing you when the battery is low. Although some Honeywell thermostats include a distinct low battery indicator.If you have a heat pump, set it to “heat” rather than “cool” or “automatic.” If the system has not been switched off, proceed to step 3. Step 3 – Check the thermostat settings. Two important settings on your thermostat can prohibit the thermostat to turn on the heat if any one of them is set incorrectly. Temperature settingsPro1 Technologies. P.O. Box 3377. Springfield, MO 65808-3377. Toll-Free: 888-776-1427. Web: www.pro1iaq.com. Hours of Operation: M-F 9 AM – 6 PM Eastern. Caution: Equipment damage hazard. Do not operate the cooling system if the outdoor temperature is below 50 ˚F (10 ˚C) to prevent possible compressor damage.In today’s fast-paced world, ensuring the safety and security of our homes is of utmost importance. With the advancements in technology, home security has become more accessible an...Set unit to heat mode. Adjust set temperature to at least 5 degrees below room temperature. Then adjust set temperature upward one degree at a time. Listen carefully for a soft click from the thermostat. This click should be heard near room temperature. Adjust set temperature down one degree at a time.The PSD011Ba and PSD022Ba are battery-powered, non-programmable digital heat & cool thermostats manufactured by Lux Products Corporation. These thermostats are designed to provide easy temperature control for heating and cooling systems. They feature a large, easy-to-read backlit display, quick and easy temperature change buttons, a fan switch ... The COOL ON, HEAT ON or icon will display when the COOL, HEAT, or (fan) is on. Note: The Compressor delay feature is active if these are flashing. 1 2 3 7 Low Battery Indicator: Replace batteries when this indicator is shown. Button Options Program Time Periods: This thermostat has 4 programmable time periods per day. 2 2 1 8 3 LOW How to Reset Honeywell Thermostat. Resetting your Honeywell thermostat is a simple and painless process. Begin by pressing the reset button on the side of the thermostat, then wait for the display to clear. Next, press and hold down both the “up” and “down” buttons until all segments of the display flash twice.Getting to know your thermostat. LCD. Indicates the current room temperature. Button options; Days of the week and time; Displays the user selectable setpoint temperature. System operation indicators: The COOL, HEAT or FAN icon will display when the COOL, HEAT or FAN is on. NOTE: The compressor delay feature is active if these icons are flashing.If you have a heat pump, set it to “heat” rather than “cool” or “automatic.” If the system has not been switched off, proceed to step 3. Step 3 – Check the thermostat settings. Two important settings on your thermostat can prohibit the thermostat to turn on the heat if any one of them is set incorrectly. Temperature settingsMake sure power switch for heating & cooling system is on. Make sure furnace door is closed securely. Wait 5 minutes for the system to respond. Temperature settings do not change. If you are in the correct mode, but you cannot set the heat from 32 °F to 90 °F (0 °C to 32 °C), or set the cool from 50 °F to 99 °F (10 °C to 37 °C), you may ...Leave the unit for a while and check whether the system is going to start cooling or not. Check other thermostat settings – something might have made your thermostat switch back to setup mode. Also, check the time on the device, as wrong settings can make the ‘cool on’ indicator start blinking. Replace the batteries or check …Why Is My Honeywell T4 Thermostat Cool On Blinking? The Honeywell T4 thermostat’s blinking cool light might indicate a cooling issue. Conclusion. Troubleshooting the Honeywell T4 Pro thermostat can sometimes be a frustrating task. However, by following the steps outlined in this blog post, you can easily identify and fix common issues that ...air conditioner to test the system. This will damage the thermostat and void your warranty. All wiring must conform to local codes and ordinances. This thermostat is designed for use with 24 volt and millivolt systems. The thermostat should be limited to a maximum of 1.5 amps; higher current may cause damage to the thermostat.22.4 “Cool On” or “Heat On” is flashing 23 Electrical Ratings 24 5-year limited warranty 25 Related Manuals: User Guide. Package Includes: T4 Pro Thermostat ... Honeywell Home T4 Pro Thermostat User Manual – Optimized PDF Honeywell Home T4 Pro Thermostat User Manual – Original PDF T4 Pro Install Instructions – 33-00187EFSIf the batteries are dying, your thermostat could be blinking the “Cool On” message. When your thermostat doesn’t have enough power, it won’t be able to start the …22.4 “Cool On” or “Heat On” is flashing 23 Electrical Ratings 24 5-year limited warranty 25 Related Manuals: User Guide. Package Includes: T4 Pro Thermostat ... Honeywell Home T4 Pro Thermostat User Manual – Optimized PDF Honeywell Home T4 Pro Thermostat User Manual – Original PDF T4 Pro Install Instructions – 33-00187EFSTemperature settings do not change. Make sure heating and cooling temperatures are set to acceptable ranges: • Heat: 40 °F to 90 °F (4.5 °C to 32.0 °C) • Cool: 50 °F to 99 °F (10.0 °C to 37.0 °C) “Cool On” or “Heat On” is flashing. • Compressor protection feature is engaged.Why Is My Honeywell T4 Thermostat Cool On Blinking? The Honeywell T4 thermostat’s blinking cool light might indicate a cooling issue. Conclusion. Troubleshooting the Honeywell T4 Pro thermostat can sometimes be a frustrating task. However, by following the steps outlined in this blog post, you can easily identify and fix common issues that ...6 Time starts blinking. Press or to adjust the schedule period start time. Press Select. 7 Temperature starts blinking. Press or to adjust the “Heat” setpoint temperature. Press Select. Press or to adjust the “Cool” temperature setpoint. PressSelect. 8 Repeat steps 4 through 7 for the remaining schedule periods. 9 Press HomeSome laser printers, including many business-oriented black and white and color units, use an imaging drum that is separate from the toner cartridge. The drum is coated with a chem...Remove your thermostat from the wall, and open the battery holder on the side of your thermostat. Remove the old batteries and clean the inside of the holder. Insert the fresh set of batteries and close the battery holder. Remount the Honeywell thermostat on the wall again. Ensure that it clicks into position.Apr 20, 2024 · The ‘Cool On’ blinking or flashing on your thermostat safeguards your HVAC system. This indicator activates a five-minute delay to protect the outdoor compressor from damage caused by turning on and off too quickly. This delay feature, especially common in Honeywell thermostats, prevents the compressor from short cycling, which can lead to ... Make sure power switch for heating & cooling system is on. Make sure furnace door is closed securely. Wait 5 minutes for the system to respond. Temperature settings do not change. If you are in the correct mode, but you cannot set the heat from 32 °F to 90 °F (0 °C to 32 °C), or set the cool from 50 °F to 99 °F (10 °C to 37 °C), you may ...The ‘Cool On’ indicator flashing on your Honeywell thermostat should normally resolve itself within 5 minutes. However, if that does not happen, you can use …6 Time starts blinking. Press or to adjust the schedule period start time. Press Select. 7 Temperature starts blinking. Press or to adjust the “Heat” setpoint temperature. Press Select. Press or to adjust the “Cool” temperature setpoint. Press Select. 8 Repeat steps 4 through 7 for the remaining schedule periods.7 Steps to Troubleshoot a Honeywell Thermostat Flashing “Cool On” Message. 1. Check Thermostat Settings; 2. Check Your Thermostat’s Battery; 3. Set Your Thermostat to The Lowest Temperature; 4. Check If Both the Outdoor and Indoor Units Have a Power Supply; 5. Clogged Air Filters Could Cause Honeywell Thermostat Blinking Cool On; 6.Confirm the message "Cool On" is solid (not blinking) on the thermostat display. Confirm your wiring is correct, and the wires have good contact in the terminals (tug gently on the wires) Check your jumper / R wire. Thermostats get power on the R and Rc terminals.If you have a wire in the R terminal, and no wire in the RC terminal, use the ...This exchange-traded fund is positioned to give investors exposure to companies taking meaningful steps toward reducing greenhouse gas emissions -- will it work and will it make yo...Remove your thermostat from the wall, and open the battery holder on the side of your thermostat. Remove the old batteries and clean the inside of the holder. Insert the fresh set of batteries and close the battery holder. Remount the Honeywell thermostat on the wall again. Ensure that it clicks into position.When your Lux thermostat stops working, it can be due to user error, dust buildup, minor system glitches, low batteries, or power and wiring issues. Depending on what is going wrong, there are many simple fixes, including routine cleaning, restarting/resetting the thermostat, switching circuit breakers off and on, replacing the …Blink cameras are a popular choice for home security systems, providing users with peace of mind and the ability to monitor their property remotely. However, one common issue that ...Power outage or any interruptions in the power cause the thermostat to automatically switch to the setup mode. This is also one of the reasons why you find your Honeywell thermostat flashing cool on. Keep an eye on the clock and review all the settings accordingly. 3. Check Whether the Batteries Are Working.Due to drained batteries, the heating or cooling feature of thermostats malfunctions. Go to your thermostat’s display and see the battery level. Insert the batteries of the required voltage so that your thermostat performs well. Replacing the batteries can debug the Honeywell thermostat won’t switch to cool. 4.Check if the thermostat is set to “Heat” mode and if the “Heat On” button is blinking. This means that a safety timer for your thermostat’s compressor has been tripped. Once this stops the heat blinking, your thermostat should be able to maintain its heat setting again. The 4-5 minute blinking is the time delay.While there is no specific number that documents how long an average person can go without blinking, the current world record is 40 minutes 59 seconds. Fergal “Eyesore” Fleming hol...If your thermostat is blinking, there is likely a problem with the battery. The blinking is used as an alert that it's time to replace it before the battery dies. If it continues to blink after you've changed out the battery, there may be a bigger problem with your thermostat. Another reason your thermostat may be blinking is that you have a ...The PSD011Ba and PSD022Ba are battery-powered, non-programmable digital heat & cool thermostats manufactured by Lux Products Corporation. These thermostats are designed to provide easy temperature control for heating and cooling systems. They feature a large, easy-to-read backlit display, quick and easy temperature change buttons, a fan switch ...Thermostat Quick Reference 4 5 Thermostat Quick Reference Displays the user selected setpoint temperature. System Operation Indicators: The COOL ON, HEAT ON or icon will display when the COOL, HEAT, or (fan) is on. NOTE: The compressor delay feature is active if these icons are flashing. The compressor will not turn on until the 5When you turn thermostat on and set your temperature sometimes it has a five minute delay built in to let compressor balance out. It has been more than 5 mins. The fan seems to be working, but no air comes from the vents and the fan outside for the outside is not spinning like the downstairs one is.The blinking “Cool On” message on a Honeywell thermostat display indicates that the system is restarting, batteries need replacing in the control panel, or a fault with the system. If the blinking persists for more than five minutes, contact a technician to perform diagnostics.The ‘Cool On’ blinking or flashing on your thermostat safeguards your HVAC system. This indicator activates a five-minute delay to protect the outdoor compressor from damage caused by turning on and off too quickly. This delay feature, especially common in Honeywell thermostats, prevents the compressor from short …If you own a Rheem furnace, you may have noticed that it has a blinking light on the control board. These blinking lights are actually diagnostic codes that can help you identify p...The blinking “Cool On” message on a Honeywell thermostat display indicates that the system is restarting, batteries need replacing in the control panel, or a fault …Cool on flashing is usually a time delay before starting the compressor. Yup, it stops flashing once time delay is over and unit is running. Turn the unit off, hose the coil of the outdoor then turn it back on. If it still doesn't work call a technician. Listen to this guy.After 10-15 seconds, place the batteries inside your thermostat again, and that will be enough to make it work like before without having any sort of issues. Replace Batteries. Another thing that you need to try if you have run a power cycle and the thermostat is still not working is replacing the batteries on it.Here are some steps you can take to troubleshoot and fix the blinking thermostat issue: Check the Air Filter: A dirty or clogged air filter can restrict airflow, causing the system to overheat and trigger short cycling. If the filter appears dirty, replace it with a new one. Inspect the Thermostat Wiring: Loose or damaged thermostat wiring …CLICK LINKS BELOW FOR ITEMS IN/RELATED TO VIDEO🍒 Here's my thermostat https://amzn.to/3cMWO9X🍒 Upgrade to this one? https://amzn.to/3Sc8L9v🍒 This one al...If you notice a blinking snowflake or flame emblem on the screen of your thermostat when you try to turn on your air conditioner that means that your system just recently shut off and the thermostat is in delay. When you try and start your air conditioner before the delay timer has gone off it will show the snowflake emblem on your …May 2, 2010 · When you turn thermostat on and set your temperature sometimes it has a five minute delay built in to let compressor balance out. It has been more than 5 mins. The fan seems to be working, but no air comes from the vents and the fan outside for the outside is not spinning like the downstairs one is. Google’s Nest unit today launched its newest thermostat. At $129, the Nest Thermostat is the company’s most affordable one yet, but it’s also the first to feature a new swipe and t...If the thermostat is set to cool, but the system is not turning on, check if there is a delay. Some systems have built-in delays to prevent short cycling. Typically, when any HVAC system is undergoing system time off delay, there will be a snowflake icon blinking on the thermostat display. Sometimes it will just be the word ‘cool’ or the ...A ‘cool on’ message will be flashing on your Honeywell thermostat, in case the system is in delay mode or if the batteries need to be changed; simply wait for 5 minutes or change the batteries and the message will disappear. If the message stays, try resetting the device.2 Power Cycle Your Thermostat. 2.1 Remove The Thermostat From The Subbase. 2.2 Take Out The Batteries. 2.3 Reinsert The Batteries And Reattach The Thermostat To The Subbase. 3 Reset The Thermostat. 3.1 Switch The Thermostat To The Off Position. 3.2 Locate The Breaker That Powers Your HVAC System And Turn It Off.1. Wait For 10 Minutes. Before you decide to fix the Honeywell thermostat cool-on flashing error, you must wait for about 5 to 10 minutes. As there is a good chance that your thermostat is going through a restart or running some checks. Or it might be facing a slight delay or using the compressor protection feature. Cool on flashing is usually a time delay before starting the compressor. Yup, it stops flashing once time delay is over and unit is running. Turn the unit off, hose the coil of the outdoor then turn it back on. If it still doesn't work call a technician. Listen to this guy. I have a honeywell home pro series. The year is flashing in top of screen select is at bottom but none of the buttons - Answered by a verified HVAC Technician ... fan on and off for cool or heat ... We have a Pro Series thermostat and its staying at 64 degrees. instead of the menu button, ...An incorrect display can cause your Honeywell thermostat cool on to blink. To troubleshoot, verify the thermostat’s settings and programming: Ensure the thermostat is set to “cool” mode. Check if the cool on indicator is blinking or a solid light. Review your programmed temperature settings to ensure they’re accurate.The ‘Cool On’ blinking or flashing on your thermostat safeguards your HVAC system. This indicator activates a five-minute delay to protect the outdoor compressor from damage caused by turning on and off too quickly. This delay feature, especially common in Honeywell thermostats, prevents the compressor from short …Jan 12, 2023 · 7 Steps to Troubleshoot a Honeywell Thermostat Flashing “Cool On” Message. 1. Check Thermostat Settings. 2. Check Your Thermostat’s Battery. 3. Set Your Thermostat to The Lowest Temperature. 4. Check If Both the Outdoor and Indoor Units Have a Power Supply. So, when your Honeywell thermostat is in the blinking stage, it shows Cool-On for more than 5 minutes – But there is a feeling that the surrounding area is not cooling down, there is no cool air coming through the system either; you might need to fix the problem.Nov 8, 2022 · If these icons are flashing, the thermostat is in delay mode, which can last up to 5 minutes. This delay protects your equipment from short cycling. If the thermostat is set for cool, verify that the furnace door is securely closed and that the furnace’s power switch is set to On. Make sure the furnace circuit breaker switches are on. [email protected]. 1-888-PRO1-IAQ. (1-888-776-1427) Toll Number (outside the US): 417-720-1435. Contact Us.2 Power Cycle Your Thermostat. 2.1 Remove The Thermostat From The Subbase. 2.2 Take Out The Batteries. 2.3 Reinsert The Batteries And Reattach The Thermostat To The Subbase. 3 Reset The Thermostat. 3.1 Switch The Thermostat To The Off Position. 3.2 Locate The Breaker That Powers Your HVAC System And Turn It Off.The most common problem is that your compressor needs 5 minutes to cool down if your Honeywell thermostat is blinking “Cool On”. Otherwise, you may need to clean or replace your AC filter if it is clogged with debris.If you notice a blinking snowflake or flame emblem on the screen of your thermostat when you try to turn on your air conditioner that means that your system just recently shut off and the thermostat is in delay. When you try and start your air conditioner before the delay timer has gone off it will show the snowflake emblem on your thermostat ...If you’re looking for a way to reduce your energy bills and increase the efficiency of your home, look no further than the Honeywell Pro Series thermostat. One of the key features ...1. Verify that the thermostat is set to cool and is calling for cooling, usually indicated by the words "cool on," a snowflake icon, or a shimmering snowflake icon. If the room temperature is below the cool set point, the thermostat display should indicate a call for cooling. 2. Confirm that the circuit breakers are on.Aug 3, 2020 · Hello I have a Honeywell T4 Pro that was flashing "Cool On" on the right side of the screen. Nothing seems to help I did replace the batteries and it stopped blinking and now it is solid "Cool On" When I run the test it does kick the AC on. So the AC itself is fine. It seems like it is something with the thermostat. It has fresh batteries. The Thermostat quick reference say the +1 will appear in the display when the 2nd stage of heat or cool is on. +2 will appear for the third stage of heat. Wvfan79 : Thats right22.4 “Cool On” or “Heat On” is flashing 23 Electrical Ratings 24 5-year limited warranty 25 Related Manuals: User Guide. Package Includes: T4 Pro Thermostat ... Honeywell Home T4 Pro Thermostat User Manual – Optimized PDF Honeywell Home T4 Pro Thermostat User Manual – Original PDF T4 Pro Install Instructions – 33-00187EFS
Remove thermostat body by gently pulling it from base. 2. Remove old batteries and replace with new batteries. 3. Make sure to correctly position the (+) and (-) symbols. 4. Gently push thermostat body back onto base. NOTE: We recommend replacing the thermostat batteries annually or if the thermostat will be unattended for an extended …. Jonathan nowzaradan
The blinking "Cool On" means the cool cycle is in delay (5 minute by default). If it's continually blinking then either the thermostat is bad, or there's a short in the low voltage wiring that's causing it to reset everytime it tries to come back on (basically resetting itself over and over). 2. Reply. Effective-Brush9301.Summary of Contents for Pro T721. Page 1 Operation Manual Operation Manual... Page 2 T721 Pro1 Technologies P.O. Box 3377 Springfield, MO 65808-3377 Toll Free: 888-776-1427 Web: www.pro1iaq.com Hours of Operation: M-F 9AM - 6PM Eastern Table of Contents Page Caution Table of Contents Thermostat Operation Thermostat Quick Reference Equipment ...You can try this with the thermostat as well and have it successfully reset by power cycling it. In order to power cycle the thermostat, you have to remove the thermostat from the base and then also remove the batteries. Let the thermostat stay in this position for sometime (say around 15 seconds ). After this you can put the batteries …CLICK LINKS BELOW FOR ITEMS IN/RELATED TO VIDEO🍒 Here's my thermostat https://amzn.to/3cMWO9X🍒 Upgrade to this one? https://amzn.to/3Sc8L9v🍒 This one al...A capacitor can do that. If the heat pump is running now, it should be ok. Emergency heat runs the electric heat strips only, it uses a lot more electricity. If the system wasn’t defrosting properly, it could have a bad defrost board. You should get that looked at if it’s freezing up outside and not switching to cool automatically (with ...1. Mount the thermostat on an inside wall, about 5 ft. (1.5m) above the floor. 2. Do not locate the thermostat where air circulation is poor such as in a corner, alcove, or behind a door that is normally left open. 3. Do not locate the thermostat where unusual heating or cooling conditions may be present, such as: direct sunlight, above a lamp,Aug 3, 2020 · Hello I have a Honeywell T4 Pro that was flashing "Cool On" on the right side of the screen. Nothing seems to help I did replace the batteries and it stopped blinking and now it is solid "Cool On" When I run the test it does kick the AC on. So the AC itself is fine. It seems like it is something with the thermostat. It has fresh batteries. Flashing lights on your thermostat are a sign of this problem. • The Cool On display on your thermostat may flash for a few minutes after you replace the batteries. • A Cool On flash might sometimes be a thermostat’s way of informing you when the battery is low. Although some Honeywell thermostats include a distinct low battery indicator.A blinking “Cool On” indicator on a Pro T701 thermostat typically signifies that the air conditioning system is in its startup or initial operating phase. This is generally a normal process that allows the equipment to stabilize before delivering cool air.Modal. Learn why the "Cool on," "Heat on," "Snowflake," or "Flame" is blinking on your thermostat device at the Honeywell Home Support and Resource …Pro T701 Thermostat Flashing Cool on . If your Pro T701 thermostat is flashing “COOL” on the display, it indicates that your AC system has been turned off. This could be because you manually switched the system off, or because something in the HVAC system is malfunctioning. To fix this problem, first check to make sure all of your …Resetting your T5 Thermostat is an easy process that can be done in a few simple steps. First, locate the reset button on the thermostat. This will usually be located near the face of the thermostat or somewhere along its sides. Once you have identified this button, press and hold it for 10 seconds until you hear a clicking sound. Luckily this is an easy enough thing to fix. All you need to do is change the batteries in the thermostat. Take a look at the display to see if the “battery low” light is flashing. As soon as your thermostat starts to display this warning, you normally have around 2 months before the power will start to fail. Make sure the Thermostat Has Power. The most common and reasonable explanation for the thermostat to not work will be because it is not getting power. You must then conduct a check of the wires of the thermostat to see if you find something. There might be loose connection due to the wires or the circuit breaker might have a problem as [email protected]. 1-888-PRO1-IAQ. (1-888-776-1427) Toll Number (outside the US): 417-720-1435. Contact Us.Check if the thermostat is set to “Heat” mode and if the “Heat On” button is blinking. This means that a safety timer for your thermostat’s compressor has been tripped. Once this stops the heat blinking, your thermostat should be able to maintain its heat setting again. The 4-5 minute blinking is the time delay.In most cases, the blinking “Cool On” or “Heat On” indicator simply means that the thermostat is in a delay. This delay can be activated by cycling power, such as during a power outage, turning the disconnect power off and on, toggling the power switch on the furnace or air handler, or changing the thermostat batteries. The solution is ...Wait 5-10 minutes. Your thermostat could be facing a slight delay in restarting and activating …Warning Turn off power to the heating or cooling equipment before installation. Attention For installation by experienced service technicians only. Read all instructions before proceeding. This thermostat is compatible with: • Single stage heat / cool conventional and heat pump systems • Conventional systems up to 2 heat / 2 cool (PRS4210 only)Thermostat blinks Cool On or Heat On is a safety time out feature, preventing HVAC compressor from restarting right after stopping. You have to wait for five minutes for ….