Problems related to residential installations.
2 posts • Page 1 of 1
This morning my wife woke me up and told me the thermostat was blank. I put new batteries in it and it cut on. I though this was strange because there were no flashing lights or message stating low battery. After doing this the ac nor the fan have cut on. I checked the voltage in the thermostat and the voltage at the blower motor, both which have come back to zero. I have tripped all breaker inside, at air handler and pulled the disconnect and put it back in. Still nothing. I cleaned out the drain line, still nothing. Any idea of what may be causing this? The thermostat is a Honeywell and the central a/c is a Lennox.