A/C Turns on when I turn on the heater
When I turn on my heater the A/C also turn on. Is a gas furnace. So I have to turn the A/C beaker down. If I only use the A/C it work fine. Any ideas. I think my digital thermostat is damaged...
Forum Discussion
If you have a newer style Dometic Thermostat, push the Mode button so that the FAN position is illuminated. Use the +/- buttons to move the fan to AUTO. Right now, you have it in the Low or High position.
