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Troubleshooting Thermostats
There is NO HEAT!
Thermostat settings
9Is thermostat in HEAT mode and calling for heat?
Wiring
9Is thermostat wired properly and is jumper there?
Relays (if applicable)
9Are relays clicking on a call for heat?
Jumping terminals
9Does furnace cycle if the Ground and W terminals are jumped?
NOTE: Remember most all gas furnaces will run the inducer fan for a
couple of minutes before the actual blower turns on. This inducer
fan may not be heard if the furnace is in a remote location.