| My residential roof heater/air conditioner unit does not shut-off
| the fans when the heater is switch off at the controls. Setting
| the thermostat to 0-degrees or opening the circuit at the control
| won't turn off the heater fan, only the gas will shut off. Shutting
| off the main power supply is the only way to turn it off. Turning
| it off and on does not help, no clicking is heard from the relays.
| Normally, it is timed for 1-3 minutes before the fans shuts off,
| but it doesn't. When it does shuts off, I can hear a click from
| the relay. The air conditioner works fine.What could be wrong
| with the circuit?
Most thermostats have a switch which lets you run the fan with the AC
neither heating not cooling. Is it off? Also, check the stack switch as it
has a similar switch (like a button) that must be pushed in for normal