Hi all, I just had a brand new Pent air Mastertemp 300 installed and immediately noticed a problem. When it first turns on, it flashes heating as it calls for heat and then fires up normally. The problem begins almost exactly 2 minutes later...heat cuts off and the "service heater" light comes on solid for 30 seconds. Then it shuts off, and the "heating" light flashes for 20 seconds as it calls for heat. It then repeats this over and over again with the same durations. Any ideas as to what might be causing this?
Thank you,
David
Thank you,
David