Thermostat Screen is Blank

in Thermostat HVAC and Wiring

Why is my HōlHōm screen blank?

If the screen is blank and there are no lights on, then it is likely there is no power to the thermostat.

  1. Check the breaker for your HVAC equipment to make sure it is on.
  2. Some homes have a disconnect switch for the HVAC equipment, check to make sure it is on.
  3. Remove HōlHōm from the mounting bracket and make sure the “R” and “C” wires are securely connected to the thermostat.
  4. Check to make sure the “R” and “C” wires are securely connected to the HVAC equipment and the “C” wire is actually connected to common.
  5. If you are using EZWire, make sure all the EZWire connections are secure.

If this does not resolve the issue, then report the problem to support.

 

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