AD00.19-N-9032EA | Fault code list for auxiliary heater (ZHE) control unit | 11.1.08 |
MODEL 374.5 /6, 375.3 /4, 940, 942, 943, 944
MODEL 950.5 /6, 952.5 /6, 953.6, 954.5 with BODY 940.890
MODEL 958.2 /4
Fault code | Fault code description |
0000 | Control unit fault |
0001 | Control unit fault, internal temperature sensor |
0100 | Auxiliary heater does not start. |
0103 | Glow pin ignition energy too low |
0104 | Operating lockout after unsuccessful start |
0200 | Flame-out has occurred repeatedly. |
0301 | Overvoltage |
0302 | Undervoltage |
0400 | Premature flame detection |
0501 | Short circuit of flame sensor |
0502 | Open circuit of flame sensor |
0503 | Overheating of flame sensor |
0601 | Short circuit of temperature sensor |
0602 | Open circuit of temperature sensor |
0701 | Short circuit of metering pump |
0702 | Open circuit of metering pump |
0705 | Metering pump has Short circuit to positive. |
0801 | Short circuit of blower motor |
0802 | Open circuit of blower motor |
0803 | Incorrect speed of blower motor |
0805 | Blower motor has Short circuit to positive. |
0901 | Short circuit of glow pin |
0902 | Open circuit of glow pin |
0905 | Glow pin has Short circuit to positive. |
1000 | Overheating of auxiliary heater |
1003 | Overheating |
1004 | Operating lockout after overheating |
1201 | Short circuit of potentiometer |
1202 | Open circuit of potentiometer |
1301 | Short circuit of overheating sensor |
1302 | Open circuit of overheating sensor |
1303 | Overheating sensor is not within tolerance. |
1501 | Short circuit at connection for external components |
1601 | The connection of the relay for the external blower has a short circuit. |
1602 | The connection of the relay for the external blower has an open circuit. |
1801 | K-wire has Short circuit. |