The control system has not detected any current through the gas valve after it has been energized. Turn off power – check all wiring and…
The control system has detected less than 2.0 AC amps through the igniter during the igniter warm up period. Check all wiring between CCB’s J5…
The control system has detected open contacts at the Blower Prover air pressure switch after Blower has been energized. Ensure the Blower Prover air pressure…
The control system has detected open contacts at the Blower Prover air pressure switch after Blower has been energized. PERFORMTURNEDALL THESE TESTS WITH POWER ON…
The control system has detected closed contacts at the Blower Prover air pressure switch out of sequence. Blower Prover air pressure switch contacts should be…
The control system has detected open contacts at the Blocked Exhaust air pressure switch – the water heater is not venting properly. Check for restrictions,…
The control system has detected open contacts at the Blocked Intake air pressure switch – inadequate supply of intake (combustion) air. If the water heater…
The control system has detected flame sensing current out of sequence. The burner has not shut down properly. Check gas valve for 100% closure. Check…
The control system has detected that the flame sensor is grounded. Disconnect the wire from the flame sensor (see pages 12 and 24). Check for…
The control system has detected less than 390 ohms from the Temperature Probe on top of the water heater. Check all wiring between the Temperature…