FAULT CODE / NOTIFICATION

Please select the appropriate fault code from the list below:

Observation:

AL 10 IGNITION FAILURE
AL 20 LIMIT THERMOSTATS FAULT
AL 21 EXTERNAL DEVICE FAULT
AL 26 RETURN TEMPERATURE EXCESSIVE
AL 28 TEMPERATURE DIFFERENTIAL
AL 34 FAN TACHO FAULT
AL 40 INSUFFICIENT SYSTEM WATER PRESSURE
AL 41 INSUFFICIENT SYSTEM WATER PRESSURE

AL 52 INTERNAL FAULT
AL 55 JUMPER TAG FAULT
AL 60 DHW THERMISTOR FAULT
AL 71 FLOW THERMISTOR FAULT
AL 73 RETURN THERMISTOR FAULT
AL 74 OVER TEMPERATURE
AL 79 FLOW TEMP OR DIFFERENTIAL EXCESSIVE
CL or St AUTO STOP