Cool blinking on thermostat - Nov 19, 2022 · In this article, we’ll look at the most common reasons why the “Cool on” light is flashing, determine whether it is “normal” or not, and provide tips on how to fix issues that could be the reason for the continuous blinking.

 
Jul 21, 2023 · System Switch not set toHeat or cool. Set system to cool or heat an either raise or lower set point below room temperature. Loose connection tothermostat or system. Ensure wires are securely attached. Malfunctioning thermostat. Replace thermostat. Dirty filter. Replace air filter. Thermostat needs a reset. . Ifiber one news facebook

Step 1: Identify the Issue. The first step in fixing a flashing snowflake on your thermostat is determining the cause. This will help you address the specific problem effectively. Common causes include low battery power, incorrect thermostat settings, sensor or wiring issues, or a system malfunction.10 DIY Ways to Fix Honeywell Thermostat Cool On Blinking. Here are 10 common troubleshooting tips to stop your Honeywell thermostat from blinking Cool On: 1. Wait 10 Minutes; As mentioned if the blinking Cool On goes away after 5-10 minutes, the system likely just needed time to start up and begin cooling your home.For this reason, there are safety measures put in place in the form of a blinking snowflake icon or “Cool On” message on the screen of the thermostat. Delay Timer Air conditioner systems come equipped with a delay timer which prevents your system from starting up before the system’s pressure has had a chance to level out.Oct 4, 2021 · 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” indicator message on a Honeywell thermostat ... AprilAire Thermostat Cooling Blinking – Best Ways To Fix It; David Clark David Clark is a highly skilled and experienced HVAC specialist with over a decade of experience. He is a founder of HVACLABORATORY located at 10 Corporate Dr, Burlington, Massachusetts. He is dedicated to providing top-notch service, staying up-to-date with …Jul 8, 2020 · The Thermostat Batteries are Low and Need to be Replaced. If your thermostat screen is blinking, it may simply be a sign that the batteries are low and need to be replaced. When your thermostat’s batteries eventually die, you will be presented with a blank display screen — and unable to cool or heat your home. If you see a cool on blinking on your thermostat it means that there is fault in the thermostat wiring or the battery is dying. The Cool On message also appears on screen when AC gives a 5 minutes cooldown time to the compressor or if blower motor is not working properly. A dirty Air Filter can also be the reason for cool on blinking on …May 5, 2022 · Thermostat Blinking Cool On, But No Air. If the COOL ON message is still flashing even after 5 minutes have passed, then you can try troubleshooting the thermostat. Set the thermostat to the lowest possible temperature. Double-check the thermostat settings – a power outage might have forced your device to switch back to set-up mode. Choose ... 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...This thermostat is shipped from the factory to operate a conventional heating and cooling system. This thermostat may also be configured for a heat pump system. See the “heat pump” configuration step on page 14 of this manual to configure the thermostat for heat pump applications. Wiring Terminal 2 Heat 2 Cool Conventional System 2 Heat 1 CoolWhat “Cool On” Blinking Means: The “Cool On” blinking on a Honeywell thermostat indicates it is in a delay mode, often a safety feature, before activating 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...If your thermostat is blinking heat on, the device might be in a 5-minutes delay state. Moreover, the thermostat might blink when there is a power loss or low battery. ... Honeywell thermostat is a multifunctional thermostat that helps heating, cooling, ventilation, and AC system. This thermostat shows the temperature state readings on …The display is flashing the word HEAT or COOL. Most newer Braeburn thermostat models will flash the word HEAT or COOL when the thermostat is calling for your heating or cooling system to run. When the call for heating or cooling is over, the word HEAT or COOL will become solid.2. The thermostat may be in the AUTO mode. Look for "AUTO" on the LCD display. If the Heat and Cool program temperatures are close, then the thermostat requires a larger room temperature change before changing from Heat or Cool. 3. There may be as much as a 4 minute delay before the Heat or Cool sys- tem turns On - wait and check.Feb 11, 2023 · 3. Cooling system requires service or thermostat requires replacement. Same procedure as diagnostic for No Heat condition except set the thermostat to COOL and lower the setpoint below the room temperature. There may be up to a five minute delay before the thermostat clicks in Cooling. Heat, Cool or Fan Runs Constantly. 1. Possible short in wiring. Check the Battery. If your the screen on your thermostat is blinking, it may just mean that the battery is low, and this is simply your unit’s way of telling you to replace its batteries before it dies entirely. If this is the case, unscrew the thermostat from your wall and replace its batteries. If the unit continues to blink, you may have a ...Wait 5-10 minutes. Your thermostat could be facing a slight delay in restarting and activating …First, verify that your thermostat is set properly. You can ensure that the system switch (which is found at the bottom right, behind the button panel door in most Lux thermostat models) is set to “heat” rather than at “cool” or “off”. Next, confirm that the fan switch (just to the left of the system switch in most models) is set to ...One such issue is the “Cool On Blinking” error, which indicates a problem with the cooling system. 2. Common Issues with Honeywell Thermostat 2.1. Cool On Blinking. The Honeywell thermostat is flashing cool, which is a symbol that means there’s a problem. Your thermostat wants cool air, but the cooling system isn’t working correctly.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.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 the wiring (if your device is not battery-operated). If none of these steps make a difference, then you ...Blinking Cool on Due To Delay Mode. Sometimes, you’ll see a blinking Cool On snowflake icon. It is not worrisome as your thermostat is only in delay mode to prevent short cycling. This mode usually lasts for about five minutes and then the thermostat stops blinking. If you see a blinking Cool On snowflake icon, lower the …White Rodgers thermostat troubleshooting; blinking snowflake. If the snowflake icon is flashing on the thermostat’s screen, the thermostat is in delay mode. The thermostat’s lockout feature is running to prevent the compressor from cycling too quickly. The blinking snowflake means the thermostat is on cool, but it is not cooling.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 ...In this video, we will walk you through troubleshooting a Honeywell thermostat with a blinking "Cool On" message. If you're having issues with your thermosta...When your thermostat says “cool on” but there’s no air, it could be due to issues with your HVAC system like a tripped circuit breaker, a clogged filter, or a refrigerant leak. First, check your thermostat settings, ensuring it’s in “cool mode” and set to the correct temperature. If the settings are right, try resetting your ...One such issue is the “Cool On Blinking” error, which indicates a problem with the cooling system. 2. Common Issues with Honeywell Thermostat 2.1. Cool On Blinking. The Honeywell thermostat is flashing cool, which is a symbol that means there’s a problem. Your thermostat wants cool air, but the cooling system isn’t working correctly.Dec 20, 2023 · 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 the wiring (if your device is not battery-operated). If none of these steps make a difference, then you ... 3. The display is stuck- if this happens, the usual source for the problem is a mistake in the configuring process. When you see the display is stuck, you have to reset the thermostat. To do that, you just need to remove the power supply, wait a few minutes and then reconnect the power and re-configure the device.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 ...This causes the bimetal coil to expand, pushing the contact toward a magnet which completes a circuit to your A/C unit. There’s the “click.”. If you have an older thermostat, the “clicking” is caused by the electrical contacts on a mercury bulb to fall to one side (heat) or the other (cool). Thermostats possessing temperature dials ...November 19, 2022. When you see the “Cool on” light on your Honeywell thermostat blinks you perhaps don’t know whether it is “normal” or not. Probably you are used to seeing it blinking from time to time but now it is flashing continuously. As this flashing is now going on for a few hours, or even a few days, you start to wonder when ...Answer: First, confirm a request for cooling on the thermostat’s display, which is commonly signaled by the words “cool on” or a snowflake icon. The thermostat is in delay mode if the “cool on” or snowflake indicator is blinking, taking up to 5 minutes. This delay is in place to safeguard your equipment from being overworked.If 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 thermostat can be reset by power cycling. Power cycle the thermostat by removing if from the subbase and remove the batteries (some thermostats will not have batteries). Wait 10 seconds and then replace the batteries and place the thermostat back on the subbase.If your thermostat has been flashing “cool on” for several minutes and no cool air is coming out, check your thermostat’s settings. A recent power outage could have triggered the thermostat’s “set-up mode,” explaining the blinking message. If it is in set-up mode, change it back to the correct setting. You can go through the ...Sensi Touch 2 smart thermostat: Make sure the room temperature number is not blue. Sensi Lite smart thermostat: Make sure the word “ON” is not displayed. Switch the thermostat back to Cool Mode. Lower the set point a few degrees above the room temperature. Within a few seconds, the thermostat should make a soft clicking sound …Amana thermostat is not turning on the AC or heat. First, set your thermostat correctly. Ensure it’s on “heat” if you want heat or “cool” if you want AC. Set the thermostat to “auto.”. Lower or raise the temperature to see if that ignites the cooling or heating cycle. If it’s still not working, open your thermostat.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 minutes, the light should switch off when the AC starts to work properly.System Switch not set toHeat or cool. Set system to cool or heat an either raise or lower set point below room temperature. Loose connection tothermostat or system. Ensure wires are securely attached. Malfunctioning thermostat. Replace thermostat. Dirty filter. Replace air filter. Thermostat needs a reset.If 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 …If your Honeywell thermostat is set to cool, but not working, the most likely cause is a problem with the wiring or power supply. Check that all wires are connected securely and that you have sufficient power (a working battery if it uses one). If everything appears normal, then you may need to reset the thermostat by pressing and holding …Luckily, they come with a warning system when such issues occur. In Emerson thermostats, the warning occurs in the form of a blinking snowflake. A flashing snowflake on an Emerson thermostat means that that the unit is in a time delay or lockout mode. Depending on the issue, it can last for a few minutes, or go on until you fix the root cause.To fix a blinking snowflake, start by checking the thermostat settings. Ensure that the temperature and mode are correctly set. If the snowflake icon keeps blinking, it may be due to the temperature being set too low or the thermostat being in cooling mode. Adjust the settings accordingly to see if this resolves the issue.Jun 23, 2014 · However, if your thermostat keeps blinking after the reset, you may have an issue like excessive defrosting or a switch in the outside unit that is stuck open. Get in touch with the pros at Metro Express Service and we’ll diagnose and fix your problem quickly. Contact us online or call 972-263-2500 to schedule an appointment. A blackout or power outage can also make the thermostat shift to the setup mode, which causes the blinking of the ‘Cool on’ indicator. Also, check whether the thermostat is not set or off because that causes this indicator’s blinking. If yes, review and configure the settings according to the instructions. Check the batteriesTo fix a blinking snowflake, start by checking the thermostat settings. Ensure that the temperature and mode are correctly set. If the snowflake icon keeps blinking, it may be due to the temperature being set too low or the thermostat being in cooling mode. Adjust the settings accordingly to see if this resolves the issue.Wait 5-10 minutes. Your thermostat could be facing a slight delay in restarting and activating …Check the circuit breaker to your equipment. Confirm the thermostat is set to Cool mode and the setpoint (the smaller number at the top of the thermostat display), is set to a temperature lower than the display temp (the larger number in the center of the display). Confirm the message "Cool On" is solid (not flashing) on the thermostat display.The display is flashing the word HEAT or COOL. Most newer Braeburn thermostat models will flash the word HEAT or COOL when the thermostat is calling for your heating or cooling system to run. When the call for heating or cooling is over, the word HEAT or COOL will become solid.There’s a lot to be optimistic about in the Services sector as 2 analysts just weighed in on Vertex Energy (VTNR – Research Report) and Bl... There’s a lot to be optimistic a...Cause: No Cool. The thermostat cooling often blinks continuously as a sign for the cooling system to run. That means your thermostat’s cooling system is most probably turned off. But it can also happen if the blown fuse or the furnace power is turned OFF. Solution. So as you can tell, the only way to solve the problem is to make the cooling ...Turn the dial for measuring 24 Volts AC. Use one of the probes to touch the red wire. The other probe should be touching any of the green, yellow or white wires. If the reading is anywhere between 22-26, your thermostat is powered. But if the reading is 0, the supply isn’t connected.Honeywell Thermostats. If you have a blinking or flashing snowflake on your Honeywell thermostat, or the word heat/cool is blinking, it means your thermostat is in delay mode. Your system should cycle on in five minutes but check the possible causes above for delay mode. Check for possible causes if your thermostat is in delay mode.In summary, when faced with the Honeywell Pro Series Cool On Blinking issue, it is essential to check the power source, perform a thermostat reset, and adjust the fan settings. By following these possible , you can troubleshoot and resolve the blinking light problem, restoring the proper functionality of your Honeywell Pro Series thermostat. A blinking “Cool On” message can indicate various causes, such as dying batteries, a power surge, or a power outage. Thermostat batteries generally last for an average of 10 months, making it easy to identify when dead batteries are responsible for the blinking message. However, sometimes a Honeywell thermostat can recuperate after a power ... If your Honeywell thermostat is set to cool, but not working, the most likely cause is a problem with the wiring or power supply. Check that all wires are connected securely and that you have sufficient power (a working battery if it uses one). If everything appears normal, then you may need to reset the thermostat by pressing and holding down ...Carrier thermostat cool on blinking message is, in fact, a helpful one. Whenever Your System Experiences A Delay Mode, The Thermostat Will Start Blinking The “cool On” Message. This Blinking Is Vital Because It Prevents Your Thermostat From Experiencing Short Cycling. The Duration Of This Blinking Message Would Be 5 …Apr 4, 2023 · If your thermostat has been flashing “cool on” for several minutes and no cool air is coming out, check your thermostat’s settings. A recent power outage could have triggered the thermostat’s “set-up mode,” explaining the blinking message. If it is in set-up mode, change it back to the correct setting. You can go through the ... Check wiring. Check fuse. Replace with 3 amp fuse if fuse has opened. Thermostat turns on and off too frequently. Increase temperature differential. Display is blank, flashing or constant LO BAT. Replace batteries. System fan does not operate properly. Move fan option switch to either gas or electric, to match system.Apr 4, 2023 · If your thermostat has been flashing “cool on” for several minutes and no cool air is coming out, check your thermostat’s settings. A recent power outage could have triggered the thermostat’s “set-up mode,” explaining the blinking message. If it is in set-up mode, change it back to the correct setting. You can go through the ... Honeywell Thermostats. If you have a blinking or flashing snowflake on your Honeywell thermostat, or the word heat/cool is blinking, it means your thermostat is in delay mode. Your system should cycle on in five minutes but check the possible causes above for delay mode. Check for possible causes if your thermostat is in delay mode.What “Cool On” Blinking Means: The “Cool On” blinking on a Honeywell thermostat indicates it is in a delay mode, often a safety feature, before activating the …Step 1 – Set to Thermostat’s Lowest Temperature Setting. When troubleshooting your thermostat’s “cool on,” the best way to start is by setting the temperature at the lowest setting. Check to see whether the thermostat can control the temperature, and if not, try modifying the controller settings.LED bulbs can be expensive up-front, but they more than make up their cost in energy savings over their lifespan (which can be measured in decades). Today at Best Buy though, you c...Apr 4, 2023 · If your thermostat has been flashing “cool on” for several minutes and no cool air is coming out, check your thermostat’s settings. A recent power outage could have triggered the thermostat’s “set-up mode,” explaining the blinking message. If it is in set-up mode, change it back to the correct setting. You can go through the ... Honeywell thermostat cool on blinking is a very common issue for Honeywell users. If you do not know the proper troubleshooting methods, you can get tensed over something very normal, and you might even want to go for a Honeywell replacement. But there is no need for that as we wrote this troubleshooting guide hoping … 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 5 A blinking “Cool On” indicator on a Honeywell AC thermostat can indicate various problems, such as a wiring issue, a faulty temperature sensor, or a …Verify that the thermostat is switched to cool mode and has a cooling set point below the room temperature reading. Check the thermostat display for cooling, usually indicated by the words “cool on” or a snowflake icon. If these icons are flashing, the thermostat is in delay mode, which can last up to 5 minutes.Jun 1, 2022 · 3. The display is stuck- if this happens, the usual source for the problem is a mistake in the configuring process. When you see the display is stuck, you have to reset the thermostat. To do that, you just need to remove the power supply, wait a few minutes and then reconnect the power and re-configure the device. Dec 20, 2023 · 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 the wiring (if your device is not battery-operated). If none of these steps make a difference, then you ... flashing. Cool mode: When the room temperature rises above the set point by the number of degrees of the differential, the cooling will turn on and the icon will display. The cool will run until the cool setting is reached, cooling will turn off and Cool icon flashing Temporary Time Delay Override: 1- Select system mode (HEAT or COOL) 2- Press ...Here is how to reset a Luxpro thermostat: Locate the reset button on your device (it is small and has “H.W. Reset” or “R. Reset” written on it). Press and hold the button for a few seconds (about 5 seconds) The screen will blink, then the thermostat will automatically reset itself.The Braeburn thermostat ‘cool’ flashing typically occurs when the thermostat is calling for cooling or when the time off delay is activated. Other times when the outdoor unit is not working or is not properly connected, it can also cause your thermostat to flash ‘cool’. But generally when your braeburn thermostat is flashing cool, there ...The thermostat automatically activates the auxiliary heating when the desired temperature is not met by the heat pump system alone. After either five, ten, or twenty minutes of your thermostat not reaching the set temperature, your thermostat automatically activates the auxiliary heat. Some thermostats can be set manually, although many come ...If the high limit switch is open due to overheating, it can cause the your Honeywell thermostat to flash “Heat On”. Troubleshooting will typically involve checking the high limit switch to ensure it is not tripped or stuck in the open position. If it is, allow the furnace to cool down and then reset the switch.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...Honeywell is one of the biggest names in home heating. Whether it’s a basic analog thermostat found in an older house or a state-of-the-art smart home interface that manages heatin...Why is my Honeywell Thermostat Blinking Cool On? Five-Minute Compressor Delay. Low Thermostat Batteries. Power Outage. AC Unit Malfunction. Incorrect Thermostat Settings. Loose Wire Connections. Switching Modes. Faulty Thermostat Wiring. Blown Fuse. Low Refrigerant. How to Fix Honeywell Thermostat Cool On Blinking Light. 1.Turn the dial for measuring 24 Volts AC. Use one of the probes to touch the red wire. The other probe should be touching any of the green, yellow or white wires. If the reading is anywhere between 22-26, your thermostat is powered. But if the reading is 0, the supply isn’t connected.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.Feb 11, 2023 · 3. Cooling system requires service or thermostat requires replacement. Same procedure as diagnostic for No Heat condition except set the thermostat to COOL and lower the setpoint below the room temperature. There may be up to a five minute delay before the thermostat clicks in Cooling. Heat, Cool or Fan Runs Constantly. 1. Possible short in wiring. When COOL ON blinks, it usually indicates a cooling system delay. But when it flashes for over 5 minutes, the primary reasons are power outage, sensor issues, wrong thermostat settings, low batteries, dirty filters and coils, wire problems, and wrong mode selections.Here are the main reasons why your Honeywell thermostat is blinking “Cool On”: A power outage: A power outage or some other interruption associated with a power source can trigger the thermostat’s compressor to restart and activate the ‘Cool On’ icon to blink. Chaining the Set Temperature: Readjusting the temperature manually after ...Last updated: July 30, 2023. A blinking snowflake on an Emerson thermostat typically indicates that delay mode is active, rather than a drop in temperature. Delay mode is a feature on Emerson thermostats that prevents cooling or heating from on to too quickly on your HVAC system. During this delay period, the thermostat will display...Last updated. 8/29/22. Why is my thermostat display showing “wait,” “waiting for equipment,” or flashing “cool on”? Each thermostat model has a different display message when a delay occurs. This delay can be up to five minutes under normal operating conditions.

Honeywell AC thermostats have a cool-on blinking light that indicates the unit is working to cool down the room. This could be due to either an incorrectly set temperature or because of an issue with the thermostat itself. If you find your Honeywell AC thermostat’s cool on light blinking, first check and make sure that you have selected a .... Pancho villa grocery store

cool blinking on thermostat

This prevents your thermostat from cycling too quickly. Reduce the temperature setting on the thermostat to the minimum possible value. Set your gadget to the lowest temperature possible and ensure that the ‘Cool’ mode is selected. In case, if your Honeywell Thermostat indicates cool on but no air is coming out.The cool on indicator keeps blinking on the thermostat after I did a reset of the breakers. We lost power Wednesday evening and the A/C hasn't worked right sense. Everything seems …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.A flashing snowflake icon on an Emerson thermostat may be a normal occurrence or may indicate a problem with your HVAC system. If your Emerson thermostat flashes a snowflake icon, the HVAC system has gone into a time delay mode. This time delay mode is usually caused by short cycling in the system. Airflow problems, faulty sensors, or ...In the left side menu click on “Vive Thermostats”. 3. Then scroll down and click on “Your Vive Thermostat”. 4. After clicking on this link, you will be directed to the settings page. 5. On the settings page, you will find the reset button and a description of what it does. 6. When you click on the reset button, you will be asked if you ...Here’s How to Fix It. What does the Honeywell thermostat “cool on” indicator mean? If your Honeywell thermostat displays a “Cool On” message, it simply …There are 11 blink codes built into a Panasonic television, as of 2015, all of which relay the fault diagnostic circuit’s detection of errors within the TV. The blink codes vary fr...Resetting your thermostat can fix many issues. If the thermostat seems out of sync with your HVAC system, a quick reset will often fix the problem. Just keep in mind that resetting the thermostat will cause you to lose any saved programs and settings. Some thermostats have a Reset button somewhere on the exterior. If yours does, …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.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.Also, I took the downstairs (working) thermostat upstairs and plugged it in and it seems to be working. I took the upstairs (not working) thermostat downstairs and plugged it and still get the flashing COOL signal. I want to check your suggested fix and try to 100% confirm it is the thermostat.However, if your thermostat keeps blinking after the reset, you may have an issue like excessive defrosting or a switch in the outside unit that is stuck open. Get in touch with the pros at Metro Express ….

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