Cool on flashing honeywell - There might be two reasons in Honeywell thermostat’ blinking: 1.With a heat pump installation process, blinks are replaced with “flashing.”. If the thermostat is installed in this type of system, then compressor protection should be checked. To do so one must see if an “on” message appears when pressing either cool or warm buttons on ...

 
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My thermostat is flashing cool on.That’s normal for many thermostats when the air conditioner is engaged.I don’t want the air conditioner engaged.Maybe you t...If you own a Honeywell safe, you know how important it is to keep your belongings secure. But what happens if you lose the key to your safe? Don’t panic. The first step in replacin...I have a multi-zone residential setup using the Honeywell Z311. When I call for the AC from the thermostat, the AC unit outside starts up and then stops after a minute or so. Sometimes shorter, sometimes longer. It's doing it on both zones. There is a flashing cool light on the honeywell z311 when this occurs. "Blinking when 45°F (7°C) DATS ...Wait 5-10 minutes. Your thermostat could be facing a slight delay in restarting and activating …Make sure heating and cooling temperatures are set to acceptable ranges: • Heat: 40° to 90°F (4.5° to 32°C). • Cool: 50° to 99°F (10° to 37°C). “Cool On” or “Heat On” is flashing • Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor (see page 3).View the Honeywell RTH6500WF manual for free or ask your question to other Honeywell RTH6500WF owners. Manua. ls. Manua. ls. Honeywell thermostat · Honeywell RTH6500WF manual. 6.4 · 1. give review. PDF manual · 140 pages. ... If the screen displays "Cool On" or "Heat On" flashing, it indicates that the compressor protection feature is ...Honeywell FocusPRO 6000 Series User Manual View and Read online. Est. reading time 8 minutes. FocusPRO 6000 Series Thermostat manuals and instructions online. ... "Cool On" or "Heat On" is flashing. Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor. To restore default ...Testing a Honeywell Thermostat. If the thermostat LED is lit, do a test by turning the thermostat to its maximum setting (in HEAT mode) or minimum setting (in COOL mode), turning the main control to AUTO or FAN and waiting for the blower to start. If it doesn't, remove the thermostat cover and check the wiring.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, …Jul 12, 2021 · On some occasions, a Honeywell thermostat can be in the wrong setting. For instance, if there was a recent power outage, this can cause your thermostat to switch to the ‘Setup’ mode. This can lead to the dreadful Honeywell cool on flashing problem. If you notice the system is in the ‘Setup’ mode, make the necessary change. The blinking ‘Cool on’ message on your Honeywell AC thermostat usually indicates an issue with the cooling system. It could be due to a dirty air filter, low refrigerant levels, a faulty thermostat, or a malfunctioning compressor.May 6, 2021 · The “Cool on” message on a Honeywell thermostat is also known as “delay mode”. It often flashes in the form of a blinking snowflake or as the word “wait’ as well. It’s a courtesy message to let you know that the AC will delay in coming on for approximately 5 minutes in order to protect your unit from short cycling which can cause ... I am replacing a Rheem thermostat with a Honeywell RTH6500WIFI. Wires are connected and system powers up but does not heat or cool. System fan comes on when turned on. But again no heat or cool. First … read moreEasy Fixes for the “Cool On” Flashing Issue. Now that we have identified the potential causes, let’s explore seven easy fixes to resolve the “Cool On” flashing issue with your Honeywell thermostat: 1. Check Thermostat Settings: Ensure that the thermostat is set to the correct mode (cooling mode).Thermostat RTH2300/RTH221 keeps flashing return on display screen, air conditioning not working. What does the flashing return mean and is it directly connected to the air not working? Optional Information: Brand: Honeywell Type of HVAC: Air Conditioner Already Tried: replacing burnt out fuse, checking and taping wiresTo help clean the system, you can add a small amount of vinegar to the water tank and run the air cooler in evaporative cooling mode for 15 to 30 minutes; then, drain the tank of the vinegar water and refill with fresh, clean water, running on evaporative cooling mode for another 15 to 30 minutes. This will help to break down the calcium deposits.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. HVAC Technician: gotoman for ac. It is probably getting late but check breaker on unit and also check float switch located on inside unit. It is set to open up and trip if drain backs up.When your Honeywell thermostat continuously displays “Cool On” or “Heat On” alerts without achieving the desired temperature, it unquestionably signals a malfunction. Normally these messages only flash for five minutes and then turn solid to indicate the system has started.A blinking ‘Cool On’ thermostat might be resolved by performing a reset and reprogramming the thermostat. To do this, consult your thermostat’s manual for instructions on resetting and reprogramming. It may involve a simple restart or a complete factory reset, which would erase all previously programmed settings.Honeywell RTH6580WF1001 Pdf User Manuals. View online or download Honeywell RTH6580WF1001 User Manual. Sign In Upload. ... Cool On or Heat On is flashing on the screen. Heat pump issues cool air in heat mode, or warm air in cool mode.The battery of the thermostat is low. When the cool light on your Honeywell thermostat keeps flashing, it may mean that the batteries are running low. The new thermostat has separate lights that show when the battery is low, but the old one still shows when the battery is low by flashing a message. On average, thermostat batteries last for …If the screen of your Honeywell thermostat is blank, you should first check the furnace or air conditioner to be sure both are on and functioning properly. If the door to the furnace is open, for instance, the thermostat display may be blank. A fix could be as simple as closing the door of the furnace. You should also check the circuit breaker ...When the cool light is blinking on your thermostat, it means that the unit is not receiving enough power to operate. This could be caused by a number of things, including a tripped circuit breaker or a faulty power cord. If you suspect that the problem is with the power supply, you should first check the circuit breaker and reset it if necessary.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.Make sure power switch at heating & cooling system is on. Make sure furnace door is closed securely. Wait 5 minutes for the system to respond. Make sure heating and cooling temperatures are set to acceptable ranges: Heat: 40° to 90°F (4.5° to 32°C). Cool: 50° to 99°F (10° to 37°C). Compressor protection feature is engaged.This usually happens if it’s in delay and the flashing icon is an indicator. If you notice the flashing icon, give it five minutes, and it should be up and running. If you’ve done that and your Honeywell thermostat cool is on but not working, it may require the touch of a technician. Honeywell Thermostat Heat Not WorkingIn recent years, Adobe Flash Player has been the go-to software for viewing multimedia content on the web. However, with its discontinuation and the rise of more secure and efficie...Can cause electrical shock or equipment damage. Disconnect power before beginning installation. Wire entire panel before applying transformer power. Install thermostats using instructions provided with thermostats. Connect thermostat to zone panel. Page 6 Installation Guide WiriNg HANDLER 24 VOLT TRANS. Connect equipment as shown.From https://www.justanswer.com/ythiJACUSTOMER-63s3by4n-: HVAC Technician: I have a honeywell pro th4000 series system.JACUSTOMER-63s3by4n-: HVAC Technician:...Try Resetting the Thermostat to Factory Settings. 1. Honeywell Lyric Y Family. You must press the reset button and wait for 5-10 seconds, later release the button. 2. Honeywell 4000/6000/8000. Press and hold the “Reset” button for 5-10 seconds. Release the “Reset” button. 3. The filter can improve the system’s performance or cause extensive damage when clogged with a significant amount of dirt. If the Cool On indicator flashes on your Honeywell thermostat, turn the air conditioner off and inspect the filter. A clogged air filter restricts the airflow into and out of the system, causing a malfunction. Honeywell Thermostat Cool ON Is Flashing Flashing lights on a thermostat can be extremely unsettling, especially if you are unsure what they mean. One of the most common instances of this is when you need cool air sent to your home, but you see the thermostat’s “Cool ON” or a little snowflake flashing in the corner.Jun 10, 2022 · 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 thermostat. Welcome to our comprehensive guide on troubleshooting Honeywell humidifiers. If you’re experiencing issues with your Honeywell humidifier, you’ve come to the right place. We will provide step-by-step instructions and solutions to common problems, ensuring you can quickly and effectively resolve any issues. Whether you’re dealing with …To determine if thermostat is the issue. remove wires from thermostat. Tie red, yellow and green together and see if unit will stay on. If so, problem is thermostat.If not we need to find what is causing the unit to shut down.It can be a pressure switch, float switch or issue with control board.A thermostat can flash “cool on” without blowing air due to electrical surges and dying batteries. A “cool on” message can also appear if the thermostat logs out or times out on its own. Wait 5 minutes, restart your thermostat, and identify and replace fuse or wire damage to make it return to normal. Thermostats can also flash a “cool ...The fix. If your thermostat is flashing cool on, wait for 5 minutes until the delay is over. Usually the thermostat delay should not take more than 5 minutes. However, if your thermostat is not blowing cold air …I am replacing a Rheem thermostat with a Honeywell RTH6500WIFI. Wires are connected and system powers up but does not heat or cool. System fan comes on when turned on. But again no heat or cool. First … read moreRemove 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.Honeywell Thermostat Flashing Cool On After Changing Batteries Depending on usage, the batteries in your Honeywell thermostat can last for 8-24 months. If your thermostat model does not have a low-battery indicator, then the device will use the ‘cool on’ message to tell you that the batteries are going to die soon.How to lock Honeywell 6000 thermostat. Go to “Up” and “Down” buttons to the right of the LCD display on your Honeywell thermostat. Tap “Up” and “Down” until you get to the desired temperature on the display. Press the button beneath “Hold” on the LCD display. “Permanent Hold” will appear on the screen. Your thermostat is ...It probably means that the compressor is not turning on. Here's how to fix that: 1. Verify that the set point is below the indoor temperature. 2. Verify the "snow flake" icon is shimmering - which may take 5 minutes or longer due to compressor protection. 3. Click here (link to another article) to make sure the Thermostat Configuration is correct.It probably means that the compressor is not turning on. Here's how to fix that: 1. Verify that the set point is below the indoor temperature. 2. Verify the "snow flake" icon is shimmering - which may take 5 minutes or longer due to compressor protection. 3. Click here (link to another article) to make sure the Thermostat Configuration is correct.Dec 2, 2023 · The most common reason for a Honeywell thermostat “cool on” blinking light is that the AC compressor needs 5 minutes to restart safely after a power interruption. This delay allows the pressure inside the AC system to equalize before the compressor turns back on, preventing damage. or call Honeywell Customer Care toll-free at 1-800-468-1502. This manual covers the following models: TH5110D:For 1 Heat/1 Cool systems. TH5220D:For up to 2 Heat/2 Cool systems. TH5320U:For up to 3 Heat/2 Cool systems. MCR29404(Remove battery holder to find model number) FocusPRO. ®TH5000 Series 1 69-1923EFS—01. ENGLISH.Okay, let's try this: first, turn the thermostat off, then remove the batteries from the thermostat and leave out until the display goes completely blank. Now, reinstall the batteries and turn the switch back to cool and lower the desired temp below the indoor temp. The 'cool on' may flash, but leave the thermostat alone for 5-10 minutes and ...If the screen of your Honeywell thermostat is blank, you should first check the furnace or air conditioner to be sure both are on and functioning properly. If the door to the furnace is open, for instance, the thermostat display may be blank. A fix could be as simple as closing the door of the furnace. You should also check the circuit breaker ...The Honeywell thermostat is a trusted climate control device, but it may display a confusing “Cool On” flashing message. This can stem from various factors, including settings, cooling system problems, or thermostat issues.Look for flashing icons or words on the screen. If you see a snowflake, flame, sun, "Heat On," or "Cool On" blinking instead of remaining solid, or the word "Wait," wait 5 minutes. The flashing icons occur when the thermostat is in delay mode, or when the compression protector has engaged.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 …This usually happens if it’s in delay and the flashing icon is an indicator. If you notice the flashing icon, give it five minutes, and it should be up and running. If you’ve done that and your Honeywell thermostat cool is on but not working, it may require the touch of a technician. Honeywell Thermostat Heat Not WorkingStep 1: Check your Honeywell thermostat’s mode. In some cases, your thermostat can switch to the “Setup Mode”, especially if there has been a recent power cut in your area. Check the settings to make sure your thermostat is in the correct mode. Moreover, you should also ensure that the correct time is set on the device.Honeywell AC Thermostat Flashing “Cool on”. Any idea why it’s doing this? I checked the wiring and they’re all in the correct ports and secure. I’m not sure what else to check. Any help is appreciated! 1 upvote · 1 comment. 1.TROUBLESHOOTING YOUR THERMOSTAT. First, let's identify your device. Select the product you’re having trouble with from the options below.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.Reset procedures vary widely depending on the model of the Honeywell thermostat, but they include pressing System to reconfigure the settings or temporarily inserting the batteries...To set the Honeywell thermostat temperature to cool, follow these steps: Switch to Cool mode by pressing the System button on the thermostat, the Mode icon on the touchscreen, the System icon on the app, or saying a voice command, such as Set the system to cool. Adjust the desired cool temperature by using the up and down arrows on the ...View the Honeywell RTH6500WF manual for free or ask your question to other Honeywell RTH6500WF owners. Manua. ls. Manua. ls. Honeywell thermostat · Honeywell RTH6500WF manual. 6.4 · 1. give review. PDF manual · 140 pages. ... If the screen displays "Cool On" or "Heat On" flashing, it indicates that the compressor protection feature is ...Replacing an old Honeywell thermostat usually involves changing to a newer model or to an energy-efficient programmable digital thermostat. This process is straightforward and can ...If the screen of your Honeywell thermostat is blank, you should first check the furnace or air conditioner to be sure both are on and functioning properly. If the door to the furnace is open, for instance, the thermostat display may be blank. A fix could be as simple as closing the door of the furnace. You should also check the circuit breaker ...If your thermostat is blinking “cool on” one of three things has taken place. Someone tried to restart the compressor before the refrigerant had time to settle. A sudden change from cool to heat, or heat to cool. Changing the batteries in your system may also cause this to happen. Honeywell thermostats are equipped with a second line of ...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 the steps below to troubleshoot the issue and resolve the problem. Reset the Thermostat. If your Honeywell thermostat is not coolingIn our fast-paced, technology-driven world, phone calls need to be answered as quickly as possible. In some situations, you cannot hear your phone ring and may miss a call. By sett...or call Honeywell Customer Care toll-free at 1-800-468-1502. This manual covers the following models: TH5110D:For 1 Heat/1 Cool systems. TH5220D:For up to 2 Heat/2 Cool systems. TH5320U:For up to 3 Heat/2 Cool systems. MCR29404(Remove battery holder to find model number) FocusPRO. ®TH5000 Series 1 69-1923EFS—01. ENGLISH.Removing a CDFS (CD file system) from a flash drive can be necessary to allow you to use all the available storage space on the drive. You do this by reformatting the drive to the ...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.A thermostat can flash “cool on” without blowing air due to electrical surges and dying batteries. A “cool on” message can also appear if the thermostat logs out or times out on its own. Wait 5 minutes, restart your thermostat, and identify and replace fuse or wire damage to make it return to normal. Thermostats can also flash a “cool ...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 ...Oct 4, 2023 · 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. Dec 2, 2023 · The most common reason for a Honeywell thermostat “cool on” blinking light is that the AC compressor needs 5 minutes to restart safely after a power interruption. This delay allows the pressure inside the AC system to equalize before the compressor turns back on, preventing damage. As of 2015, Honeywell manufactures more than 60 thermostat models ranging from seven-day digital programmable thermostats to manual thermostats, and all models can be viewed on the...Testing a Honeywell Thermostat. If the thermostat LED is lit, do a test by turning the thermostat to its maximum setting (in HEAT mode) or minimum setting (in COOL mode), turning the main control to AUTO or FAN and waiting for the blower to start. If it doesn't, remove the thermostat cover and check the wiring.Confirm the message "Heat On" is solid (not flashing) 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 wire. To operate heating, the thermostat requires power to the R terminal. (If you have a wire in the RC terminal and no wire in the R ...If your Honeywell Thermostat is flashing ‘Cool On’ , set the temperature to the lowest setting. Then reset your Honeywell Thermostat. I’ve also gone into detail …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 ...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 the steps below to troubleshoot the issue and resolve the problem. Reset the Thermostat. If your Honeywell thermostat is not coolingThere is no need to fret if you see a “Return” message on your Honeywell Thermostat. This is entirely usual and is key for the optimal performance of the device. It plays a fundamental role in the main characteristics of the equipment. The “Return” message blinks when it’s working in advance to reach set temperatures assigned to the ...If your thermostat is blinking “cool on” one of three things has taken place. Someone tried to restart the compressor before the refrigerant had time to settle. A sudden change from cool to heat, or heat to cool. Changing the batteries in your system may also cause this to happen. Honeywell thermostats are equipped with a second line of ...My thermostat is flashing cool on.That’s normal for many thermostats when the air conditioner is engaged.I don’t want the air conditioner engaged.Maybe you t...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.A blinking snowflake on a Honeywell thermostat is mostly caused by activated delay mode or an activated saver switch (if you are subscribed to one). This issue can be fixed by simply waiting for the delay time to elapse which is typically about 5 minutes or switching the saver switch off, respectively. Also read: Honeywell thermostat blinking ...My thermostat is flashing cool on.That’s normal for many thermostats when the air conditioner is engaged.I don’t want the air conditioner engaged.Maybe you t...Resetting Using The Power Button. Press the power button on your Honeywell Humidifier for 5 seconds, until the green power light turns off to hard reset the system. Wait for 30 seconds before switching the humidifier back on. The red indicator light should now be off. Resetting Using The Cord.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 …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...

Confirm the message "Heat On" is solid (not flashing) 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 wire. To operate heating, the thermostat requires power to the R terminal. (If you have a wire in the RC terminal and no wire in the R .... State of connecticut v reyes

cool on flashing honeywell

A thermostat can flash “cool on” without blowing air due to electrical surges and dying batteries. A “cool on” message can also appear if the thermostat logs out or times out on its own. Wait 5 minutes, restart your thermostat, and identify and replace fuse or wire damage to make it return to normal. Thermostats can also flash a “cool ...Honeywell Thermostat Cool on Flashing No Ac . When the Honeywell thermostat is flashing “Cool on” and no AC is running, it could mean that your air conditioning system has malfunctioned or lost power. If the problem persists, it is best to contact a professional HVAC technician to diagnose and repair the issue. In some …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 the steps below to troubleshoot the issue and resolve the problem. Reset the Thermostat. If your Honeywell thermostat is not coolingNov 16, 2023 · Easy Fixes for the “Cool On” Flashing Issue. Now that we have identified the potential causes, let’s explore seven easy fixes to resolve the “Cool On” flashing issue with your Honeywell thermostat: 1. Check Thermostat Settings: Ensure that the thermostat is set to the correct mode (cooling mode). If the screen of your Honeywell thermostat is blank, you should first check the furnace or air conditioner to be sure both are on and functioning properly. If the door to the furnace is open, for instance, the thermostat display may be blank. A fix could be as simple as closing the door of the furnace. You should also check the circuit breaker ...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...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, …Temperature settings do not change. Make sure heating and cooling temperatures are set to acceptable ranges: Heat: 40° to 90°F (4.5° to 32°C). Cool: 50° to 99°F (10° to 37°C). “Cool On” or “Heat On” is flashing. Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the ...To set the Honeywell thermostat temperature to cool, follow these steps: Switch to Cool mode by pressing the System button on the thermostat, the Mode icon on the touchscreen, the System icon on the app, or saying a voice command, such as Set the system to cool. Adjust the desired cool temperature by using the up and down arrows on the ...Make sure heating and cooling temperatures are set to acceptable ranges: • Heat: 40° to 90°F (4.5° to 32°C). • Cool: 50° to 99°F (10° to 37°C). “Cool On” or “Heat On” is flashing • Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor (see page 3).You can create text within Adobe Flash by using the text tool and then formatting it horizontally or vertically. The Properties inspector enables you to format text even further. A...Is you house HVAC thermostat blinking "cool on" or "heat on" and does not turn on the furnace or air conditioner? This is most often caused because power was...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.If the thermostat is blinking cool on but not working, this could indicate a power issue. Make sure to follow these steps to troubleshoot the problem and resolve it. Step 2: Check Thermostat Settings. When troubleshooting a Honeywell thermostat blinking cool on but not working issue, it is essential to check the thermostat settings.May 18, 2015 · I have a multi-zone residential setup using the Honeywell Z311. When I call for the AC from the thermostat, the AC unit outside starts up and then stops after a minute or so. Sometimes shorter, sometimes longer. It's doing it on both zones. There is a flashing cool light on the honeywell z311 when this occurs. "Blinking when 45°F (7°C) DATS ... Honeywell FocusPRO 6000 Series User Manual View and Read online. Est. reading time 8 minutes. FocusPRO 6000 Series Thermostat manuals and instructions online. ... "Cool On" or "Heat On" is flashing. Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor. To restore default ...The “cool on” light on your Honeywell thermostat is a safety feature that tells you that the system is starting to cool your home. If it stays on for more than 5 minutes, it could mean that there’s a bigger problem with your AC unit, batteries, or power supply. Learn how to troubleshoot the issue with simple steps and tips from HomeRiders.If your Honeywell thermostat displays a “Cool On” message, it simply means that the device is in operation mode. When the cooling message appears, it ….

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