Honeywell thermostat pro series cool on flashing

1 About your new thermostat. 1.1 Features. 2 Quick reference to controls. 3 Quick reference to display screen. 4 Set the time and day. 5 Select the system setting. 6 Select the fan setting. 7 Save money by setting program schedules. 8 Energy saving settings for maximum cost savings.

Honeywell thermostat pro series cool on flashing. Aspect 4: Check whether you've installed the batteries correctly. If you've tested the batteries in other household devices and the batteries have worked in every device except the thermostat, you might have installed the batteries incorrectly. Put the batteries back again after you've verified the orientation they should be in.

Honeywell Home TH1110DH1003 - PRO 1000 Horizontal Non-Programmable Thermostats (1 Heat/1 Cool)- Overview: The PRO non-programmable family of thermostats provides basic and simple operation with specific models for conventional and heat pump systems. Features: Non-programmable digital thermostat. Easy-to-read backlit display - easy to read in various lighting conditions.

Why is my Honeywell Thermostat Blinking Cool On? Five-Minute Compressor Delay. Low Thermostat Batteries. Power Outage. AC Unit Malfunction. …To set your Honeywell thermostat's system mode for 9000 and 8000 models, follow these steps: First, tap the "SYSTEM" button to display the different system settings. Then, choose the desired mode by tapping the corresponding option: Tap "Done" to save your selection and exit the settings. Keep in mind that the Automatic and Emergency ...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.Check your electrical panel. If your Honeywell Home smart thermostat has a blank screen or isn't kicking on your furnace or air conditioner, the breaker may have tripped. Check the breakers for the thermostat, your furnace, and your air conditioner to make sure everything is powered on. 3. Check the C wire.SKU: TH8321WF1001/U. 2.9. |. 20 out of 71 (28%) reviewers recommend this product. With a large touchscreen display, the VisionPRO® 8000 WiFi Programmable Thermostat makes it easy to control your home comfort. Program a schedule for every day of the week or adjust the temperature remotely anytime from the Total Connect Comfort app.The new Honeywell T Series Programmable Thermostat has stages up to 1 Heat/1 Cool for conventional systems and 2 Heat/1 Cool for heat pumps.Features7-day, 5-2, 5-1-1 or non-programmableOn-screen menus with familiar installer setup (ISU) stepsUWP mounting. 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. (Or the Y and O/B terminal if you have a heat pump system) In addition, the G ... Check your electrical panel. If your Honeywell Home smart thermostat has a blank screen or isn't kicking on your furnace or air conditioner, the breaker may have tripped. Check the breakers for the thermostat, your furnace, and your air conditioner to make sure everything is powered on. 3. Check the C wire.

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 ...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. Remove the cover and check for dust, dirt, or corrosion, cleaning it with a soft brush or cloth if necessary.Sometimes, a simple reset of the power source can clear up the cool on blinking on thermostat issue. Reset the Thermostat Many minor glitches can be resolved by resetting your thermostat. This can be a soft reset or, in some cases, a hard reset as specified in your Honeywell thermostat manual. Inspect the Air Filters A very common issue that ...The Honeywell Pro 4000 Thermostat - TH4110D1007 has been discontinued, but we carry Honeywell accessories to maintain operation, as well as an array of replacement thermostats. Overview The Honeywell PRO series includes the easiest to install and use thermostats on the market. In fact, the TH4110D1007 can be programmed in less than five minutes!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, …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 …

Sep 26, 2023 · Verify Power Supply. To troubleshoot a Honeywell AC thermostat with a blinking cool on LED, start by verifying the power supply. Check the thermostat power source to ensure proper voltage supply. Inspect the power connections and make sure they are secure. If the wires are loose or damaged, tighten or replace them accordingly. 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. …Troubleshooting guide: Why is your Honeywell thermostat flashing 'Cool on'? Get answers to fix HVAC issues fast...Mar 3, 2022 · Change the batteries. Replace air filters. Check the furnace door/power switch. Inspect air conditioner coils. Replace the thermostat. Call in an HVAC specialist. Honeywell thermostat set to cool but heating. Confirm the thermostat is set up properly. Lower the temperature on the thermostat. PRO 3000 Non-Programmable Thermostat - read user manual online or download in PDF format. Pages in total: 16. ... Honeywell PRO 3000 Non-Programmable Thermostat Owner's Manual. Download. Like. Full screen Standard. Page of 16 Go. PRO. ... • Cool: Cooling system control.

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I have a Honeywell home pro series, the cool on is flashing but the ac will not come on. TH411OU2005. For the last - Answered by a verified HVAC Technician. ... On my Honeywell Home Pro Series thermostat there 3 things going on. 1. Cool on is flashing in top left corner. 2. A triangle is light in middle of top of display.Steps To Troubleshoot Issues With ‘Cool On’: Honeywell Thermostat. 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. Set Thermostat To Lowest Temperature SettingHave a Honeywell T4 Pro thermostat. Does not display anything but flashing 2023 in upper LH corner and select in lower - Answered by a verified HVAC Technician ... Honeywell home pro series thermostat. It's not even 2 years old ... Honeywell ProSeries display reads "Cool On" "Fan On" "Permanent Hold" and temp reads 25 degrees. ...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...

Feb 16, 2023 · 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. Honeywell Home T4 Pro User Manual View and Read online. Thermostat controls. System operation settings. ... 13.4 "Cool On" or "Heat On" is flashing; 14 Electrical Ratings; 15 5-year limited warranty; 16 Videos. ... Thermostat Honeywell Home PRO TH1000E1 Series Installation Manual (24 pages)My Honeywell Home Pro Series thermostat is offline and there is no display. I have two thermostats and the other one is working fine. ... Cool on is flashing in top left corner. 2. A triangle is light in middle of top of display. ... We just installed a Honeywell Pro TH8000 thermostat and it is blowing hot air when it is set to cool ...On my Honeywell Home Pro Series thermostat there 3 things going on. 1. Cool on is flashing in top left corner. 2. A triangle is light in middle of top of display. 3. Top right corner by Wi-fi there is … read moreHoneywell 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.Replace the battery: Remove the old battery and replace it with a new one. Be sure to follow the manufacturer's instructions for inserting the battery correctly. Reattach the thermostat cover: Once the new battery is inserted, snap the thermostat cover back into place. Turn the power back on: Finally, turn the power back on to the thermostat ...If you see Honeywell thermostat flashing cool on, give it a time, around 15 to 20 minutes. Just turn everything off and wait. After the minute has passed, try to turn it on again. If nothing happens, contact the manufacturer’s customer service. But if the system works again, you know that you only need to give it time.SKU: TH8321WF1001/U. 2.9. |. 20 out of 71 (28%) reviewers recommend this product. With a large touchscreen display, the VisionPRO® 8000 WiFi Programmable Thermostat makes it easy to control your home comfort. Program a schedule for every day of the week or adjust the temperature remotely anytime from the Total Connect Comfort app.

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.

® TH5000 Series 1 69-1923EFS—01 ENGLISH About your new thermostat ... Congratulations on the purchase of your new Honeywell thermostat. It has been designed to give you many years of reliable service and easy-to-use, push-button ... Heat On/Cool On (If flashing, see page 9) System setting Heat/Cool/Auto/Off/ Em Heat (see page 7) Fan settingThe new Honeywell T Series Programmable Thermostat has stages up to 1 Heat/1 Cool for conventional systems and 2 Heat/1 Cool for heat pumps.Features7-day, 5-2, 5-1-1 or non-programmableOn-screen menus with familiar installer setup (ISU) stepsUWP mounting.Usually, a Honeywell thermostat will enter Recovery mode when it needs to adjust from a mode that is energy-saving. When this happens, it will turn on your HVAC system before the time you scheduled a certain temperature, so it will get the chance to adjust gradually. For instance, if you set up your thermostat to offer you a temperature of 70 ...Your thermostat is blinking heat on signal because there might be a problem in the outdoor unit. Moreover, a time delay problem might give blinking signals. Besides, low battery or power loss problems might show blinking results. You can replace the battery or reset it to solve the problem.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 …Make sure that your Honeywell thermostat is set to “cool” mode, and that the fan setting is on “auto”. Set the thermostat to the lowest temperature reading possible. Once it’s been left to do its thing, check to see if anything has kicked in or if there’s a change in temperature in your home.Do all the fixes fail for you? Don’t worry; one last troubleshooting is available. Try a factory reset to your thermostat. Sometimes, smart devices develop irregular glitches and function unusually. It is obvious for old devices, so power cycling or resetting the thermostat would fix the honeywell pro series thermostat cool on flashing problem.My thermostat is TH411OU2005. Honeywell home pro series. i think it is programable. i just want to set the temperature, but i can't because it keeps talking about time and fans and other stuff. can yo … read moreA 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.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 ...

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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.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. You should verify that the fan setting is set to Automatic.Wait 5-10 minutes. Your thermostat could be facing a slight delay in restarting and activating …Heath : To get into the menu press and holf the up arrow and the fan button untill the display changes. Then press the next button until you get to option 15 and on the right side will be a 5 that is the 5 minute delay. Use the up and down arrows to change the 5 to 1 if you want the comprete.r delay to be 1 minu. Final Thoughts. The reason why Honeywell thermostat blinking cool on is maybe the thermostat devices taking delay time to prevent the AC from short cycling. However, the cool on flashing may indicate that the AC is pumping cool air into your home. The blinking is supposed to go away within 5 minutes. The Honeywell AC thermostat Cool On blinking indicator could be due to faulty wiring connections. These connections may cause improper communication between the thermostat and the cooling system. ... If your Honeywell Pro Series thermostat fan won't turn off, check the fan limit switch for any obstructions, dirt, or defects. Clean or replace ...Tenant ( Re building) has changed batteries. Her reply: Batteries changed. "Cool On" was flashing momentarily and now stopped flashing. 45 minutes have passed since it stopped flashing but still no cool air at all.I switched from heat to AC, last month. It didn't work so I opened the balcony doors.Honeywell T6 PRO Z-Wave Thermostat (model th6320zw2003) exhibits very erratic behavior after battery replacement. Ask Question Asked 4 years, 6 months ago. ... When this occurred, I tried to set both "Cool" and "Fan" to OFF in the menu, but the fan and A/C remained running (the thermostat display updated as if everything was working properly). ... ….

When troubleshooting a Honeywell thermostat blinking cool on but not working issue, it is essential to check the thermostat settings. Start by adjusting the temperature settings to ensure they are accurately reflecting your desired comfort level. Additionally, examine the mode settings to verify that the system is set to cool mode. ...Thermostat non programmables. Termostatos no programables. PRO 1000 Series. This manual covers the following models: TH1100D: For 1-Heat systems TH1110D: For 1-Heat / 1-Cool systems. TH1210D: For 2-Heat / 1-Cool heat pump systems. (Remove the thermostat from its wallplate to find the model number.) CAUTION: EQUIPMENT DAMAGE HAZARD.I have a Honeywell home pro series, the cool on is flashing but the ac will not come on. TH411OU2005. For the last - Answered by a verified HVAC Technician. ... On my Honeywell Home Pro Series thermostat there 3 things going on. 1. Cool on is flashing in top left corner. 2. A triangle is light in middle of top of display.Select your Home Wi-Fi network name and touch “CONNECT”. For hidden networks, touch the “OTHER” button to enter the network name/SSID manually. Enter the password for your Home Wi-Fi network. Touch “NEXT”. You will receive a “Success” message. Step2- Register your thermostat.Thermostat mounting 1. Push excess wire back into the wall opening. 2. Close the UWP door. It should remain closed without bulging. 3. Align the UWP with the thermostat, and push gently until the thermostat snaps in place. 4. Turn the power on at the breaker box or switch. Set the time and date Time 1 Press Menu on your thermostat.Best honeywell pro series thermostat wifi reviews 2023Honeywell thermostat battery replacement if thermostat doesn't work ac won't turn on How to reset honeywell thermostat th4110d1007Honeywell thermostat programmable. ... 2000 vertical programmable thermostats 1 heat / 1 cool Honeywell thermostat programmable review edited lastHoneywell pro ...Visit https://bit.ly/39fmYkg for more information about the Resideo Honeywell Home T6 Pro thermostat.This video covers how to enter, navigate, and modify adv...POPULAR VIDEOS. How to properly remove an old thermostat for replacement. Modal 1. How to Install A Honeywell Home T3, T4, T5, T6, and T9 Thermostat (Video) Modal 1. How to enter and navigate advanced programming on the T6 Pro thermostat. Modal 1. How to program schedules on the T6 Pro thermostat. Modal 1.Honeywell Home TH6220U2000 - T6 Pro Programmable Thermostat, 2H/1C Heat Pump, 2H/2C Conventional- The T Series programmable thermostat streamlines everything from product selection and installation to customer service and support. With a standard footprint and simple interface, the T Series will enhance the entire thermostat experience for you and your customers alike<br> <br><b>Package ...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. Honeywell thermostat pro series cool on flashing, 1-800-468-1502. Introduction. The Honeywell T6 Pro Z-Wave Programmable Thermostat is a Z-Wave Plus certified thermo-stat capable of controlling up to three heat and two cool stages of heat pump, (incl. dual fuel heat pump systems) and up to two heat and two cool stages of conventional system (3H/2C HP, 2H/2C Conv.), Sep 26, 2023 · Verify Power Supply. To troubleshoot a Honeywell AC thermostat with a blinking cool on LED, start by verifying the power supply. Check the thermostat power source to ensure proper voltage supply. Inspect the power connections and make sure they are secure. If the wires are loose or damaged, tighten or replace them accordingly. , The cool on is blinking but ac not on, pro series 1-2 years old, it was off to - Answered by a verified HVAC Technician. We use cookies to give you the best possible experience on our website. ... My honeywell thermostat quit working, like it was turned off. I replaced the batteries., View Resource: PRO 4000 Series Programmable Digital Thermostat Installation Instructions (English, French, Spanish) - Legacy Product Document TH4000 Series Programmable Thermostat Operating Manual (English, French), View and Download Honeywell PRO TH3000 Series operating manual online. ... (Heat/Cool) PRO TH3110D / TH3210D System switch The SYSTEM switch can be set to control your heating or cooling system, depending on the season. ... Install fresh batteries when the REPLACE BATT warning begins flashing. The Turn thermostat over, insert fresh AA warning ..., Whether it's an older analog model or one of the newer Wi-Fi-enabled smart Honeywell pro series with internet connectivity and remote access capabilities, many common Honeywell thermostat problems can be fixed with some easy DIY troubleshooting. In ... Related Article: Honeywell Thermostat Cool on Blinking. Rate this post., 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., PRO 3000 Non-Programmable Thermostat - read user manual online or download in PDF format. Pages in total: 16. ... Honeywell PRO 3000 Non-Programmable Thermostat Owner's Manual. Download. Like. Full screen Standard. Page of 16 Go. PRO. ... • Cool: Cooling system control., Operating Manual Fan switch Set the FAN switch to Auto or On. In “Auto” mode (the most commonly used setting), the fan runs only when the heat- ing or cooling system is on. If set to “On,” the fan runs continuously. Use this setting for improved air circula- tion, or for more efficient air cleaning., 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 12, 2019 · 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... , Make sure the breaker is in the "ON" position or replace any blown fuses. If the thermostat is battery-powered, check the battery statu s and replace the batteries if necessary. Sometimes, cooling issues can arise if the Honeywell ProSeries thermostat is not correctly connected to the power source., Download this manual. PRO 2000 Series. PROGRAMMABLE THERMOSTATS. TH2110DV1008, TH2210DV1006. THIS MANUAL COVERS THE. FOLLOWING MODELS: TH2110D: For 1-Heat / 1-Cool systems. TH2210D: For 2-Heat / 1-Cool heat pump systems. (Remove the thermostat from its wallplate to find the., 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 ("Waiting for Equipment" is not displayed ..., The thermostat installed on your Mercury Sable's 3.0l engine is what allows coolant to flow from the radiator to the engine. When the thermostat goes out, your engine temperature w..., It could be that your thermostat is not currently receiving power due to the batteries drying up or a problem with the power source. In either case, if your thermostat uses AA batteries, try replacing the batteries. If it is directly connected to a power source, then check if the power source is working or not. Check Connection Points., 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., Heath : To get into the menu press and holf the up arrow and the fan button untill the display changes. Then press the next button until you get to option 15 and on the right side will be a 5 that is the 5 minute delay. Use the up and down arrows to change the 5 to 1 if you want the comprete.r delay to be 1 minu., Page 1: Thermostat Controls. Digital Thermostat FocusPRO ® 5000 Product Information Series Thermostat controls Display screen Low battery Auxiliary heat (Only Temperature warning for heat pumps with setting auxiliary heat) Current inside System temperature Heat Replace Status Inside Battery holder Setting Battery Cool On: Temperature buttons ..., 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 ..., Now, let's dive into the step-by-step process of removing the cover on your Honeywell Pro Series thermostat: 1. Turn off Power. Begin by turning off the power to your HVAC system. Locate the circuit breaker or the power switch dedicated to your heating and cooling system and switch it off. This step is crucial for your safety and avoids any ..., 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., 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 ..., 1. Inspect the Wiring. If your Honeywell thermostat wires are loose, or not inserted in the right terminals, the device may not turn on your heating system. So if your Honeywell thermostat won't turn on heat, the wires might be loose or inserted wrongly. Check and ensure the wires are inserted into the correct terminals., The T9 Smart Thermostat works with Smart Room Sensors to help you adjust the temperature from anywhere and stay cozy in the rooms that matter. Place sensors where you want to see each room's temperature and humidity. Use the multi-room display on the thermostat's touchscreen — or in the Resideo app — to focus on rooms based on occupancy or ..., Correctly wired 5-wire Honeywell thermostat. Thermostat wiring is a big topic; which color wires and the terminal does what and where they should go is explained in our thermostat wiring article here.For furnaces and heat pumps, we use 2-wire, 3-wire, 4-wire, or even 5-wire thermostats (Honeywell and Nest thermostats are the most commonly used ones)., A - To rest your Honeywell thermostat pro series, follow the below mentioned steps. STEPS TO FOLLOW: STEP 1 - Check whether your thermostat is in "ON" state or not. If not then bring it into this state. STEP 2 - In the next step, keep pressing the "Menu" button until you witness "Reset" option. STEP 3 - Now select the ..., Clean the slot from dust and insert the new batteries. Ensure that you place the positive and negative sides of the batteries in the appropriate positions and slide the slot back into the thermostat. If the thermostat display is still blank, you have to keep on troubleshooting. Step 4. Check the wiring., I have a Honeywell home pro series, the cool on is flashing but the ac will not come on. ... On my Honeywell Home Pro Series thermostat there 3 things going on. 1. Cool on is flashing in top left corner. 2. A triangle is light in middle of top of display. 3., 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., If your thermostat is in delay mode, the following messages and icons will be flashing on your thermostat display: “Wait” or “waiting for equipment” “Heat” or “Heat on” Fire Icon; Sun Icon; If you see any of the above messages or icons flashing or blinking quickly, then compressor protection is on for your heat pump., Tenant ( Re building) has changed batteries. Her reply: Batteries changed. "Cool On" was flashing momentarily and now stopped flashing. 45 minutes have passed since it stopped flashing but still no cool air at all.I switched from heat to AC, last month. It didn't work so I opened the balcony doors., Mar 3, 2022 · Change the batteries. Replace air filters. Check the furnace door/power switch. Inspect air conditioner coils. Replace the thermostat. Call in an HVAC specialist. Honeywell thermostat set to cool but heating. Confirm the thermostat is set up properly. Lower the temperature on the thermostat.