You need to know several Honeywell thermostat troubleshooting issues. This type of troubleshooting is commonly found in air conditioning, heat pump systems, or even Honeywell thermostats that flash cool on.
You need to know about it to ensure how to fix the product well. Here, we want to show you the common issues to help you do the right thing.
When managing your home’s heating and cooling, the role of smart thermostats cannot be overstated. These devices often form the control center of your HVAC system. However, there may be times when you encounter the issue of your Honeywell thermostat not working.
This can lead to inaccurate temperature readings or even a blank screen, which requires prompt troubleshooting to maintain your cooling system’s effectiveness.
Test System by Increasing the Temperature
The first thing to do to solve the problem is to test the heat. You need to turn on the thermostat to the heat position. Don’t forget to set the temperature.
Setting the temperature as higher is better because you want to test the heat. For example, you can set the heat position to 80 degrees Fahrenheit.
Then, wait a few minutes for the machine to activate the furnace. Listen carefully while waiting for it to kick in because you will hear it. If you don’t hear or feel it, the thermostat is wrong.
Test the System by Lowering the Temperature
Now, you must set the switch at the top of the thermostat. This action is important to make the machine cool. Due to this step, you must dial or set the temperature to the lowest.
Let’s say you can reduce the temperature to 60 degrees Fahrenheit. Just like checking the thermostat using a higher temperature, let the machine for a few minutes.
The purpose is to ensure that the cool air begins to flow. The sign that it works properly is that you hear the AC unit kick in. If it is not, there are Honeywell thermostat problems.
“If you have an older thermostat that is either round or square and you adjust the temperature by turning a knob or moving a small lever, you have an analog thermostat. To check your furnace, make sure the switch is set to ‘HEAT,’ and turn the temperature setting up to 80 degrees. Give it five minutes to see if the heat kicks on, and if so, adjust it to your preferred setting.”
How to Handle the Digital Honeywell Thermostat Troubleshooting
Another common issue you must consider is the display screen problem. Here, you must learn how to reset Honeywell thermostat, especially if you have a digital one.
Read also: Honeywell Water Heater Gas Control Valve
Check the Door of the Furnace
The common Honeywell thermostat problem is caused by the door on the furnace, which is not fully shut. So, you have to shut the furnace’s door correctly to get the power to the thermostat back. Then, you can reset the thermostat and use it just like before.
Read also: Honeywell Thermostat Vision Pro Troubleshooting
“A blank or unlit screen is a common issue that can stem from several sources. Ensure your thermostat is receiving power. Replace batteries if your model requires them or check the circuit breaker if it’s hardwired.”
Check the Batteries
Besides the door not fully shut, you must also check the batteries. The common problem of using a digital thermostat is that you don’t realize the batteries are dead. If the batteries are dead, there is no power to turn the thermostat on.
To prevent this problem, you need to check the battery’s condition on the screen. Of course, you have to replace the dead batteries with new ones. Then, please turn on the thermostat and reset it before using it.
Check the Circuit Breaker
The circuit breaker may also be tripped. It is usually tripped. You must check the circuit breaker first and then switch it to the off position.
Then, you must test the thermostat by turning the breaker to the on position. If the thermostat is working usually just like before, it means there is nothing to worry about. If it doesn’t work after switching the breaker, it means there is another problem you need to find.
Don’t forget to check the basics, like ensuring the power switch for your HVAC system is in the ‘on’ position. Sometimes, the most straightforward solutions like this can resolve a complex problem.
“If the screen is on but the heat nor air are working: Check to see that the date and time are set correctly and that it’s not programmed to be hotter or cooler than you want it to be in your home. Remove the cover and see if any wires are disconnected and that the jumper settings are in the right place.”
Check the Low-Voltage Wires
Due to the condition where you can turn on the thermostat, it can be that the low-voltage wires are disconnected. To check the condition, you need to see the small colored wires inside the thermostat.
Just check the position; the wires need to be installed in the correct position. Check the color code chart and connect it based on the instructions to fix this troubleshooting.
Check the Clock Setting Function
The common problem is also because of its power outages. The signal of this troubleshooting is when you see a wrong clock setting. This is the signal that the thermostat is losing its power.
As a result, it doesn’t work correctly. Sometimes, you need to replace the batteries with new ones. Then, you can start to reset the clock setting. Read the manual and set the clock carefully based on the instructions.
Summary Table of Troubleshooting Steps
| Issue | Troubleshooting Steps |
|---|---|
| Heating not working | Set the thermostat to cool, decrease the temperature to 60°F, and wait for the AC unit to kick in. |
| Cooling not working | Check and replace batteries, check the circuit breaker, and reset the thermostat. |
| Display screen issues | Check switch settings, inspect the wiring, consider HVAC unit issues, and possibly replace an old thermostat. |
| The furnace door is not fully shut | Ensure the furnace door is properly shut to restore power to the thermostat. |
| Batteries dead | Replace with new batteries and reset thermostat. |
| Circuit breaker tripped | Check and reset the circuit breaker. |
| Low-voltage wires disconnected | Inspect and correctly connect the small colored wires inside the thermostat. |
| Incorrect clock setting | Reset the clock setting following a power outage by replacing batteries and consulting the manual. |
| Analog thermostat issues | Check switch settings, inspect wiring, consider HVAC unit issues, and possibly replace an old thermostat. |
| Smart thermostat error codes | Follow specific error code instructions, such as replacing filters, checking Wi-Fi connection, or scheduling professional service if needed. |
Now, you know some common issues while using a Honeywell thermostat. The information above helps you analyze the thermostat troubleshooting and solve the problem well. There is no significant impact. You must bring it to the dealer and let the expert handle it.
