[Lou Placentia]

When turning the thermostat on heat, the fan turns on and air comes out of the fvents. It's not warm air, but it's air. It never heats up and after about 5 minutes it turns off and doesn't turn on again until you turn the switch off and then back on the thermostat. Is there a pilot light I'm missing? There is propane, all of the appliances light up just fine.

Thanks in advance for your help!!!