My Zeroth unit is not providing heating/cooling, why could this be?

Heating or Cooling Not Working

If your Zeroth unit is not providing heating or cooling, here are a few simple checks you can carry out before seeking further assistance:

1. Check the heat emitters (radiators)
   • Make sure they haven’t been turned off or isolated.
   • Check the Thermostatic Radiator Valves (TRVs) and open them if needed.
2. Verify the unit has power
   • Is the screen lit up?
   • Is the isolation switch on?
   • Has a fuse tripped on the consumer unit/fuse box?
3. Look for warning messages
   • If the “System Fault Contact Support” message appears, further guidance can be found here: Zeroth Fault Message Article
4. Check the temperature setting
   • Ensure the set temperature on the room thermostat is appropriate and adjust if needed.
     
   • Also check that any timer setting on the room thermostat is set to allow the heat pump to run long enough to get the room to temperature.
5. If still unresolved
   • Contact the building management service that looks after your heating system.

Applicable models:

ZHP4-180C, ZHP4-180C-01, ZHP4-180H, ZHP4-180H-01, ZHP6-180C, ZHP6-180C-01, ZHP6-180H, ZHP6-180H-01, ZHP9-180C-01, ZHP9-180H-01