Girard Tankless water Heater
My hot water isn't working, I am getting one flash from the inside light of my Direct spark igniter. According to the owners manual, one flash means Air Fault but it does not say what to do about it. I can't find anything in my internet searches. I see no obstructions and I purged the relief valve, all water faucets, checked all connections and the sail switch. I don;t hear the blower come on however when I turn the water off and on I can hear a switch click and I can smell propane. The power seems to work as well. Any Ideas anyone?..