Clippings by daven

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Please help diagnoses: thermostat or system issue?

posted by: daven on 11.14.2013 at 07:30 am in Heating & Air Conditioning Forum

I have a gas pack/heat pump that is controlled by a Honeywell
TH8320U1008 thermostat. We are in a new building and everything was working well with Summer and AC but now that we need heat we have a problem.

The thermostat will be set on 69 degrees but when we arrive in the morning it is 64 degrees inside. If I pull the thermostat off the wall and replace it on the mount the system immediately kicks on and heats. I have replaced the batteries in the thermostat and the display appears normal.

What can cause this and what do I need to do to remedy the situation.

Thanks,
Dave

NOTES:

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clipped on: 11.14.2013 at 07:33 am    last updated on: 11.14.2013 at 07:33 am