Honeywell cool on flashing

Conclusion – Honeywell Thermostat Cool On Blinking. In most cases, a blinking “Cool On” indicator on a Honeywell thermostat simply means that there is a delay, and the system will start working normally after about 5-10 minutes. If the problem persists, try bypassing the thermostat or troubleshooting the system further.

Honeywell cool on flashing. Feb 21, 2024 · 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.

PRO 3000 1 Heat/1 Cool Non-Programmable Digital Thermostat. SKU: TH3110D1008/U. Simple Operation. This Honeywell Home PRO 3000 Non-Programmable Thermostat from Resideo offers basic operation such as a slide switch for selecting heat, cool, or operate the fan. The backlit digital display makes temperature and settings easier to read in various ...

To set your Honeywell Thermostat to permanent hold, you need to first press the + or – button and adjust the temperature. The thermostat will display ‘temporary hold’ along with a flashing setpoint temperature. While the temperature is flashing, press the ‘hold’ button and change it to permanent hold. I was trying to take a nap on an ...II. Cool On Blinking on Honeywell AC Thermostat A. Overview of the Cool On Blinking issue. The cool on blinking issue on a Honeywell AC thermostat is one of the most common problems reported by users. When the cool on indicator light blinks, it indicates that there is an issue with the cooling system or thermostat that needs attention.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 …Honeywell thermostat flashing “cool on”. A/C is not blowing cold air. : r/HVAC. Honeywell thermostat flashing “cool on”. A/C is not blowing cold air. Thermostat is set to 70°. It’s currently 76°. First time I’ve ever seen this. Please help! Two kids are human heaters and need the cool air when they sleep.Recommended Fix. 1. Honeywell AC Won’t Work. The wrong setting, dirty condenser coils, or a non-running fan. Set the thermostat on COOL, lower the temperature below room temperature, and set the fan on ON/Auto mode. Clean dirty coils and ensure the fan is running. 2. Honeywell Air Conditioner Not Blowing Cold Air.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. Dirty Coils Can Cause Honeywell Thermostat Flashing “Cool On” 7.If your Honeywell thermostat won’t stop flashing ‘Cool On’, follow these steps to troubleshoot: Reset the Thermostat: First, try resetting the thermostat. This can often resolve any minor technical glitches. Check the Wiring: Check the wiring between the thermostat and your HVAC system for any visible damage.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 may arise. Remember to check the power source, …

If the flashing light on your Honeywell thermostat has been on for more than 5 minutes and there is no cooling,. In such a case, resetting the thermostat may resolve the problem. In this blog, we are …Nov 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). 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 air conditioner. Common Causes for Blinking: Power loss, recent power outage, and thermostat’s internal checks are the common causes for the blinking message.The Honeywell AC thermostat is displaying a blinking “Cool On” indicator. In this situation, it is important to troubleshoot the issue to identify the cause and find a solution. 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 ...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.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.Wait 5-10 minutes. Your thermostat could be facing a slight delay in restarting and activating …

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 …Honeywell thermostats are one of the most popular thermostat models in the market today. These thermostats come with a “Cool On” indicator that indicates the status of the device. However, some users reported that their Honeywell thermostat keeps on blinking, and they are not able to set the desired temperature. If the same Honeywell ...Press the Menu or Settings button on your thermostat. Scroll to the option that says “Adaptive Recovery”, “Smart Response”, or “Recovery Mode”. Select the option and change it to “Off” or “Disable”. Press the Done or Save button to confirm your changes. You can also refer to the user manual of your Honeywell thermostat for ...Watch this video to find out how to repair leaking roof flashing around a chimney with step-by-step instructions. Expert Advice On Improving Your Home Videos Latest View All Guides...Honeywell Air Comfort provides expert insights and solutions to enhance your cooling experience. Explore our FAQs now regarding troubleshooting, usage, and more! ... CFM of 200, for example, is a spot cooler and can affect a radius of about 50 sq. ft. A cooler with a CFM of 2,000 can cool a space that is about 500 sq. ft. Bear in mind, though ...Aug 8, 2023 · 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.

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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 ...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...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.Find out how to properly install metal roof flashing around a chimney. Expert Advice On Improving Your Home Videos Latest View All Guides Latest View All Radio Show Latest View All...When it comes to controlling the temperature of your home or office in Shreveport, LA, Honeywell controllers are the best choice. Honeywell controllers are reliable and easy to use...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...

Compressor protection: A "cool on" or "heat on" message may appear along with a flashing light. Low batteries: Replace the batteries periodically, even if there is no "Replace bat" message . For older analog models, ensure the thermostat is mounted level on the wall and located about 5 feet from the floor.Oct 25, 2023 · If you have a Honeywell T5 thermostat, then you may have noticed that it appears to be flashing or blinking cool. This is actually quite common and can indicate a few different issues. First of all, the thermostat might need batteries replaced, as its low battery warning system will cause the screen to flash ‘cool’ when the power supply is ... Conclusion – Honeywell Thermostat Cool On Blinking. In most cases, a blinking “Cool On” indicator on a Honeywell thermostat simply means that there is a delay, and the system will start working normally after about 5-10 minutes. If the problem persists, try bypassing the thermostat or troubleshooting the system further. Return is when you get back home, and Sleep is for the sleeping period. When your thermostat reads “Return,” it means that the Return schedule is currently working. Return programming makes sure that your home is at an ambient temperature when you get back from work. It follows the Leave time period where the temperature is reduced to lower ...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. View and Download Honeywell 1-Heat/1-Cool - TH5110D1022 Large R operating instructions manual online. Non-programmable Thermostat. 1-Heat/1-Cool - TH5110D1022 Large R thermostat pdf manual download. Also for: Th5110d, Focuspro 5000, Th5100d1007/u.Adhere to our simple actions to get your Wi-Fi VisionPRO 8000 - Honeywell ForwardThinking prepared rapidly: Find the template from the catalogue. Enter all required information in the necessary fillable fields. The user-friendly drag&drop interface makes it easy to include or relocate areas. Ensure everything is filled in appropriately, with no ...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.

Aug 8, 2023 · If the flashing light on your Honeywell thermostat has been on for more than 5 minutes and there is no cooling,. In such a case, resetting the thermostat may resolve the problem. In this blog, we are going to outline the many measures you may take to address the difficulties with ‘Cool On’ on your Honeywell thermostat. Also, we will talk ...

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.Both thermostats are set for cool but zone 1's LED on the control panel has the - Answered by a verified HVAC Technician. By chatting and providing personal info, ... honeywell hz221 zone 1 red linght blinking when i set thermostat to heating ...Jan 16, 2022 · Honeywell “cool on” blinking is basically an indicator that tells that the thermostat is under operational mode to cool the temperature. It takes around 5-7 minutes to completely operate. Just leave your thermostat for a couple of minutes and cool on flashing on thermostat would automatically go away. System Diagnostic Mode. 8 Steps of Honeywell hz311 Troubleshooting Red Light. Step 1: Check the Manual. Step 2: Power Cycling. Step 3: Inspect Zoning Dampers. Step 4: Thermostat Connection. Step 5: Wiring Issues. Step 6: System Settings. Step 7: System Diagnostics.Return is when you get back home, and Sleep is for the sleeping period. When your thermostat reads “Return,” it means that the Return schedule is currently working. Return programming makes sure that your home is at an ambient temperature when you get back from work. It follows the Leave time period where the temperature is …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 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 after the delay period, there could be issues causing this problem. Let’s go to the next step to find out more.Honeywell thermostat says "cool on" blinking or "heat on" flashing, but not working after changing batteries. Thermostat blinks Cool On or Heat On is a safet...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 Honeywell thermostat blinks “cool on” if the batteries are dying, the blower motor is bad, or the air filter is dirty. The message can also appear if the thermostat was improperly installed or if the wires are damaged. Honeywell thermostats also display a “cool on” message if the compressor needs 5 minutes to reset.

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7 Problems of Honeywell HZ311 Thermostat With Troubleshooting Guide. Problem 1: Incorrect Temperature Readings. Problem 2: Connectivity Issues. Problem 3: Unresponsive Controls. Problem 4: Heating or Cooling System Not Working. Problem 5: Display or Interface Issues. Problem 6: Short Cycling. Problem 7: Sensor Problems.Check that all vents in your home are open and unobstructed. Move any objects that may be blocking the vents, such as furniture or curtains. After cleaning or replacing the filters and ensuring vents are open, turn your thermostat back on and set it to “cool.”. Wait a few moments to see if the air begins blowing.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...Find out how to properly install metal roof flashing around a chimney. Expert Advice On Improving Your Home Videos Latest View All Guides Latest View All Radio Show Latest View All...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. ...Honeywell thermostat flashing “cool on”. A/C is not blowing cold air. : r/HVAC. Honeywell thermostat flashing “cool on”. A/C is not blowing cold air. Thermostat is set to 70°. It’s currently 76°. First time I’ve ever seen this. Please help! Two kids are human heaters and need the cool air when they sleep.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.The Honeywell 8000 thermostat is a popular choice for homeowners looking to upgrade their heating and cooling systems. With its sleek design and advanced features, this thermostat ...If the flashing light on your Honeywell thermostat has been on for more than 5 minutes and there is no cooling,. In such a case, resetting the thermostat may resolve the problem. In this blog, we are … ….

View and Download Honeywell 1-Heat/1-Cool - TH5110D1022 Large R operating instructions manual online. Non-programmable Thermostat. 1-Heat/1-Cool - TH5110D1022 Large R thermostat pdf manual download. Also for: Th5110d, Focuspro 5000, Th5100d1007/u.Learn why the "Cool on," "Heat on," "Snowflake," or "Flame" is blinking on your thermostat device at the Honeywell Home Support and Resource Center.Resetting the Honeywell thermostat to the default factory setting will delete all your saved settings. Follow the steps below to reset the Honeywell Vision Pro 8000 series. Press the “MENU” button. Go to the “PREFERENCES” tab. Scroll down and click on “RESTORE TO FACTORY DEFAULT.”. Tap “YES” to confirm the factory reset.The Honeywell ST9400C manual is an essential resource for anyone who owns or operates a Honeywell ST9400C programmable thermostat. This comprehensive guide will help you understand...The Honeywell 8000 thermostat is a popular choice for homeowners looking to upgrade their heating and cooling systems. With its sleek design and advanced features, this thermostat ...PRO 3000 1 Heat/1 Cool Non-Programmable Digital Thermostat. SKU: TH3110D1008/U. Simple Operation. This Honeywell Home PRO 3000 Non-Programmable Thermostat from Resideo offers basic operation such as a slide switch for selecting heat, cool, or operate the fan. The backlit digital display makes temperature and settings easier to read in various ...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.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 ...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.Dec 2, 2023 · Tighten Wiring Connections. Inspect wiring terminals on the thermostat and AC control board for looseness. Tighten all loose connections. 13. Cycle AC Unit Power. Turn off the power to the AC unit for 30 seconds, then turn it back on to reset the system and see if the “cool on” flashing light stops. 14. Honeywell cool on flashing, 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..., , 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 about checking your batteries, AC filters, AC coils, and the …, Jun 3, 2023 · 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. , Featured Image Credit: Pinterest.com. Honeywell thermostat cool on blinking: Day by day the amount of users of this Honeywell thermostat is increased and that they are all giving excellent reviews about it.Some people are assuming that the value of this thermostat is going to be high but it’s not like that and everything comes on your …, On a Honeywell thermostat, a message that says ‘temporary’ indicates that the device is on a temporary hold. During this period, the thermostat will keep the temperature in your house at a certain setting. Once the temporary hold expires, the device will get back to its normal schedule. You get to decide when the temporary hold should …, If you have a Honeywell T5 thermostat, then you may have noticed that it appears to be flashing or blinking cool. This is actually quite common and can indicate a few different issues. First of all, the thermostat might need batteries replaced, as its low battery warning system will cause the screen to flash ‘cool’ when the power supply is ..., If your Honeywell thermostat says “cool on” but there’s no air blowing, there could be several reasons for the issue. It’s essential to identify the problem’s source to apply the appropriate solution. Here are some of the common causes of a thermostat not blowing air: Faulty thermostat settings. Air conditioning system problems., Pull on pants are a great way to look stylish and put together without having to fuss with zippers or buttons. Rafaella pull on pants are the perfect choice for busy women who need..., If your Honeywell thermostat is flashing cool on, it could be due to a delay mode, a clogged air filter, a shorted contactor, or other issues. Troubleshooting steps include resetting the thermostat, checking the contactor, and cleaning or replacing the air filter. Clogged Air Filters. One of the most prevalent causes of a Honeywell thermostat ..., 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., 1.6K. 149K views 4 years ago. Honeywell thermostat says "cool on" blinking or "heat on" flashing, but not working after changing batteries. Thermostat blinks Cool On or Heat On is a safety time..., 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., A blinking “Cool On” message can appear due to dying batteries, a power surge, or a power outage. Thermostat batteries last for an average of 10 months, so it is easy to tell when dead batteries are the culprit. Sometimes, a Honeywell thermostat can bounce back after a power outage without requiring a reset., 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 ... , 4 Manual Troubleshooting Techniques. 4.1 Step-by-step Guide For Manual Troubleshooting Of The Honeywell Hz311 System. 4.2 Identifying And Fixing Issues With The Reversing Valve. 4.3 Switching The System To Cooling Mode And Resolving Any Related Problems. 4.4 Fixing The Bypass In The Hz311 System. , 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 air conditioner. Common Causes for Blinking: Power loss, recent power outage, and thermostat’s internal checks are the common causes for the blinking message., Step 1: Check Temperature Differential. To begin, press the “Menu” or “Settings” button on your Honeywell thermostat. Use the arrow keys or touchscreen to navigate to the temperature setting. Ensure your desired temperature is just a short distance from the current room temperature displayed on the thermostat’s screen., The fan symbol on a Honeywell thermostat represents the fan mode. It indicates whether the fan is set to “auto” or “on” mode. If the fan symbol is illuminated, it means that the fan is set to the “on” mode and will run continuously, even when the temperature is not being regulated. If the fan symbol is not illuminated, it means that ..., Learn why the "Cool on," "Heat on," "Snowflake," or "Flame" is blinking on your thermostat device at the Honeywell Home Support and Resource Center., 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 ..., Nov 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). , The Honeywell ST9400C manual is an essential resource for anyone who owns or operates a Honeywell ST9400C programmable thermostat. This comprehensive guide will help you understand..., 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)., Here’s how to fix it: Make sure the thermostat is set to the desired temperature for heating. Try to change your thermostat settings manually. This can be done by pressing the “Up” arrow. After that, press the option that says “Switch to Permanent Hold.”. Your thermostat setting will then switch by matching the outdoor temperature., Not all thermostats have this feature, so check your manual to see if yours does. If not, your problem could be something else. Solution: If you have a battery tester, take out your batteries and test them. Replace if necessary. If not, replace them anyway and see if that stops your thermostat from blinking. 3., 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., 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., Sep 26, 2023 · If you return from a vacation and find your Honeywell thermostat repeatedly flashing “cool on,” there’s no need to be alarmed. This occurrence can often be attributed to a power outage during your absence. When such an interruption happens, your thermostat may revert to setup mode, leading to the persistent blinking of the “cool on ... , 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 wires, 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., Some thermostats keep blinking the cool on message, but now you don’t have to worry about it. The Honeywell Pro series thermostat cool on flashing can be fixed differently. Keep trying these steps, and your Honeywell thermostat will start functioning like before and release all your stress by giving out the natural cool-on effect., If the Honeywell Thermostat says “Cool On”, set the temperature to the absolute lowest setting. After that, just re-install the Honeywell software and see if that changes anything. Tech Support 24/7. Ask an Appliance Repairman Online. Connect with the Expert via email, text or phone. Include photos, documents, and more.