There is no heat and the “POWER ON” light on the Power Flame control box is “ON” and “Main Fuel” light is “ON”.
- Thermostats not set properly. Set thermostats to proper setting.
- Thermostats out of calibration. Re-calibrate or replace.
- Main gas cock closed (silver body, black handle) or test gas cock (brass body, yellow handle, located behind main gas valve). Open gas cocks.