Are you seeing the display on your Honeywell thermostat showing an empty screen? The causes vary from minor to moderately complex in Honeywell thermostat blank screen. It is recommended that you go through our troubleshooting guides before calling a professional for assistance or changing your thermostat. This article will discuss the resolution of the Honeywell thermostat blank screen problem.
It is always advised to users that they must avoid undertaking any task they aren’t skilled in, and in the event of doubt, it’s recommended to seek the help of an expert.
Eight steps for troubleshooting Honeywell thermostat blank screen
1. Verify the power
The majority of thermostats are connected to the source of power in your house. If you’re experiencing this, there could be an issue with the energy source inside your home. First, you must check the circuit breakers. If it’s all good, then take a look at the lighting on your HVAC system. It’s also possible that the power source to the line to which your thermostat is located may be cut off. Check the fuses and switches.
2. Make sure the safety switch is on.
If there’s nothing amiss regarding the power source in your home, you should make sure you have a safety switch on the HVAC unit. HVAC systems generally come with safety switches for parts within the unit.
Additionally, you will find switches on controllers and splitters. Verify which ones are affected. If this is the reason that’s causing your thermostat to stop working, It’s a simple fix. All you need to do is place the switches back in their place.
3. Examine the batteries
One of the most frequent causes of problems with thermostats is the battery going out or having trouble. Honeywell thermostats are not an exception. The problem with your batteries may be that they are causing the thermostat’s display to become blank and non-responsive. It’s easy to tell if the problem is due to the batteries. You can tell that the batteries are the primary source when the screen flickers, fades or turns off completely.
The HVAC system operates the majority of thermostats; however, they can still be powered by batteries in an outage. Batteries may power your thermostat. In that scenario, the thermostat is dependent entirely on batteries and can’t function if the batteries are defective.
4. Check furnace doors
The majority of regular furnaces within North America will have a door switch. Make sure that your furnace has one, as thermostats can be sensitive and stop functioning in the event of any issue. The doors are closed to enable the Honeywell thermostat to function correctly, and the sensors need to be switched on. Make sure that everything is working.
5. Make sure you can see the thermostat’s panel pressing in
The issue could be in the thermostat’s body, the thermostat itself. The display will not turn on if the panel isn’t correctly packed in and positioned in the thermostat. Verify that everything is working fine and then push the discussion in when required. For most Honeywell thermostats, you will be able to detect when the board is in the correct position by hearing it makes a click sound.
6. Look for loose connections
The entire HVAC system is comprised of a plethora of wires, as well as the thermostat. To function correctly (or in any way), all cables must be in good condition and connected to the correct locations.
The loose connections can disrupt the operation of the thermostat. Verify whether the wiring is loose for any HVAC components, like the heater, boiler, AC, and so on. Also, ensure that the wires are correctly connected to the terminals on the rear of the thermostat. Be sure to switch on the circuit breaker before connecting close to the cables. Be careful.
7. Make sure you check the wiring
When talking about wiring, verify that all wires are correctly connected and at suitable locations within the thermostat. Unscrew the thermostat off of the wall and take examine the cables. Verify whether there’s a wire that is connecting to an R-terminal. It is red. Does your thermostat require C-wire? Check! If there’s no connection with terminal C, that blank display could be the reason.
The thermostat’s wiring should not be too complicated, although you might prefer to consult someone more knowledgeable for help.
8. The thermostat could need to be replaced.
If nothing has been performed, your thermostat might need a replacement! Keep this in mind when you purchased the thermostat for the first time. Did it have any issues before this? Perhaps your thermostat is working well for your home, and it should be replaced with an upgraded model. Maybe you’ll need to reach out to Honeywell to seek more specific guidance. Or, you could contact a handyperson in your area and ask for assistance.
Why did the screen on my thermostat go blank?
Your screen becoming blank can mean the batteries need to be changed. If so, you will generally require AA alkaline or 3-volt lithium batteries, but check to see which kind is currently running the thermostat and swap them out. When the battery is getting low, most thermostats show a low-battery indication.
We hope that, at the very least, one of these tips has been helpful! If not, maybe it’s time to consult a professional. Call Honeywell assistance or speak to an electrician who can spot the issue quickly.
Frayed connections, loose connections wires, and aging wires all could cause your thermostat to be disconnected from your HVAC system and your air conditioner. Examine your wiring carefully, ensure that your connections are secure, and replace any wires required by your or an HVAC expert.
Hold and press your ‘Up’ and Fan buttons. You will see a number to the left side; change it to 85′. There will be a different numeral on the right side; change it to “1”. The thermostat’s schedule is reset.
If the thermostat’s wall doesn’t have C-wires or any other standard wire, it is likely isn’t connected to your HVAC system to get power and requires batteries. If the screen on your thermostat has no color, this could mean that you must replace the batteries. The majority of thermostats show a low-battery symbol when the battery is low.
If you’ve been away and did not notice this warning and your batteries can no longer power the screen, it’ll be blank. It is fixable by taking off the cover of the unit’s wall and replacing the battery. It may be necessary to restart the device and then re-program your settings after the display appears.