Main Module Alarms – Default
Note Some of the alarm codes listed are reserved for
special applications only.
Alarm prefix for module identification of articulated or special application systems
| MM ID | MM position | Final indicated Alarm number value |
|---|---|---|
| ID00 | Front or Single unit | Alarm No = value from column A |
| ID01 | Rear or Middle unit | Alarm No = value from column A + 100 |
| ID02 | Rear unit or special app | Alarm No = value from column A + 200 |
Example:
Alarm 001: Clutch on MM0
Alarm 101: Clutch on MM1
Alarm 201: Clutch on MM2
| Alarm No | Severity | Description |
|---|---|---|
| 1 | R | Clutch 1 output open circuit |
| 2 | R | Clutch 1 output short circuit or overcurrent |
| 3 | Y | Low pressure cut-out compressor 1 |
| 4 | R | High pressure cut-out compressor 1 |
| 5 | R | Low pressure cut-out compressor1 cycled 13 times in 10 min. |
| 6 | R | Low pressure cut-out compressor 1 longer than 10 min. |
| 7 | Y | Return air temperature sensor failure - low value |
| 8 | Y | Return air temperature sensor failure - high value |
| 9 | Y | Evaporator coil temperature sensor CTS1 failure - low value |
| 10 | Y | Evaporator coil temperature sensor CTS1 failure - high value |
| 11 | Y | Ambient temperature Sensor failure - low value |
| 12 | Y | Ambient temperature Sensor failure - high value |
| 13 | Y | Temperature Sensor CTS2 failure - low value. |
| 14 | Y | Temperature Sensor CTS2 failure - high value |
| 15 | Y | Duct air temperature sensor failure (DTS1) - low value |
| 16 | Y | Duct air temperature sensor failure (DTS1) - high value |
| 17 | Y | Temperature sensor failure (DTS2) - low value |
| 18 | Y | Temperature sensor failure (DTS2) - high value |
| 19 | Y | Screw Compressor discharge temp. sensor failure - low value |
| 20 | R | Screw Compressor discharge temp. sensor failure -high value |
| 21 | R | Clutch 2 output open circuit |
| 22 | R | Clutch 2 output short circuit or overcurrent |
| 23 | Y | Low pressure cut-out compressor 2 |
| 24 | R | High pressure cut-out compressor 2 |
| 25 | R | Low pressure cut-out compressor 2 cycled 13 times in 10 min. |
| 26 | R | Low pressure cut-out compressor 2 longer than 10 min. |
| 27 | R | Clutch 1 cycling |
| 28 | R | Clutch 2 cycling |
| 29 | O | Evaporator coil 1 frozen |
| 30 | O | Evaporator coil 2 frozen |
| 31 | Y | Compressor discharge temperature warning |
| 32 | R | Compressor discharge temperature shutdown |
| 33 | Y | Fresh air servo 1 failed during initialization |
| 34 | Y | Fresh air servo 1 failure |
| 35 | Y | Fresh air servo 2 failed during initialization |
| 36 | Y | Fresh air servo 2 failure |
| 37 | Y | Heater valve servo 1 failed during initialization |
| 38 | Y | Heater valve servo 1 failure |
| 39 | Y | Heater valve servo 2 failed during initialization |
| 40 | Y | Heater valve servo 2 failure |
| 41 | Y | SM1 output failure |
| 42 | Y | SM2 output failure |
| 43 | Y | SM3 output failure |
| 44 | Y | SM4 output failure |
| 45 | Y | SM5 output failure |
| 46 | Y | SM6 output failure |
| 47 | Y | EEPROM error |
| 48 | Y | Configuration check sum error |
| 49 | Y | Heater valve servo 3 failed during initialization |
| 50 | Y | Evaporator fan low speed output open circuit or underload |
| 51 | Y | Evaporator fan low speed output short circuit or overload |
| 52 | Y | Evaporator fan med.speed output open circuit or underload |
| 53 | Y | Evaporator fan med. speed output short circuit or overload |
| 54 | Y | Evaporator fan high speed output open circuit or underload |
| 55 | Y | Evaporator fan high speed output short circuit or overload |
| 56 | Y | Condenser fan low speed output open circuit or underload |
| 57 | Y | Condenser fan low speed output short circuit or overload |
| 58 | Y | Condenser fan high speed output open circuit or underload |
| 59 | Y | Condenser fan high speed output short circuit or overload |
| 60 | Y | LSB (liquid solenoid Bottom)output open circuit or underload |
| 61 | Y | LSB (liquid solenoid Bottom) output short circuit or overload |
| 62 | Y | LST (liquid solenoid Top) output open circuit or underload |
| 63 | Y | LST (liquid solenoid Top) output short circuit or overload |
| 64 | Y | Boost pump relay output open circuit or underload |
| 65 | Y | Boost pump relay output short circuit or overload |
| 66 | Y | OTP1 output open circuit or underload |
| 67 | Y | OTP1 short circuit or underload |
| 68 | Y | OTP2 output open circuit or underload |
| 69 | Y | OTP2 short circuit or underload |
| 70 | Y | Missing CAN message from FH second zone / second deck / Stroco preheater |
| 71 | Y | Evaporator blower fault |
| 72 | Y | Condenser fan fault |
| 73 | R | Discharge pressure transducer 1 out of range - low |
| 74 | R | Discharge pressure transducer 1 out of range - high |
| 75 | R | Discharge pressure transducer 2 out of range - low |
| 76 | R | Discharge pressure transducer 2 out of range - high |
| 77 | Y | Suction pressure transducer 1 out of range - low |
| 78 | Y | Suction pressure transducer 1 out of range - high |
| 79 | Y | Suction pressure transducer 2 out of range - low |
| 80 | Y | Suction pressure transducer 2 out of range - high |
| 81 | Y | Preheater Valeo/Webasto: F01 – no start after two attempts |
| Preheater Eberspaecher: 50/52 – Safety time exceed | ||
| Preheater Stroco: 1 – Safety time exceed | ||
| 82 | Y | Preheater Valeo/Webasto: F02 – flame out (at least 5-times) |
| Preheater Eberspaecher: 54 – Flame cutout | ||
| Preheater Stroco: N/A (not defined) | ||
| 83 | Y | Preheater Valeo/Webasto: F03 – low voltage or excess voltage |
| Preheater Eberspaecher: 11 – Undervoltage cut-off | ||
| Preheater Stroco: 4 – Undervoltage | ||
| 84 | Y | Preheater Valeo/Webasto: F04 – foreign light detected |
| Preheater Eberspaecher: 16/51/58 – Flame monitor | ||
| Preheater Stroco: N/A (not defined) | ||
| 85 | Y | Preheater Valeo/Webasto: F05 – flame sensor defective |
| Preheater Eberspaecher: Connection Error (many internal alarms) | ||
| Preheater Stroco: 3 – Photodetector defective | ||
| 86 | Y | Preheater Valeo/Webasto: F06 – temperature sensor defective |
| Preheater Eberspaecher: 14/60/61/71/72 – Temperature sensor | ||
| Preheater Stroco: 8 – Sensor defective | ||
| 87 | Y | Preheater Valeo/Webasto: F07 – Solenoid Valve defective |
| Preheater Eberspaecher: 10 – Overvoltage cut-off | ||
| Preheater Stroco: 7 – Solenoid Valve defective | ||
| 88 | Y | Preheater Valeo/Webasto: F08 – Fan Motor Defective |
| Preheater Eberspaecher: 32/33 – Burner Motor | ||
| Preheater Stroco: 6 – Fan defective | ||
| 89 | Y | Preheater Valeo/Webasto: F09 – Circulation Pump Defective |
| Preheater Eberspaecher: N/A (not defined) | ||
| Preheater Stroco: N/A (not defined) | ||
| 90 | Y | Preheater Valeo/Webasto: F10 – Temperature Limiter Defective |
| Preheater Eberspaecher: 12/15 – Overheating | ||
| Preheater Stroco: 10 – Overtemperature alarm | ||
| 91 | Y | Preheater Valeo/Webasto: F11 – Igniter Box Defective |
| Preheater Eberspaecher: Diagnostic Output Failure | ||
| Preheater Stroco: 2 – Ignition Electrode Defective | ||
| 92 | Y | Preheater Valeo/Webasto: F12 – Error lockout, repeated malfunction / repeated flame out |
| Preheater Eberspaecher: 90-97 – Control Box | ||
| Preheater Stroco: 9 – Too many start attempts | ||
| 93 | Y | Missing voltage for main module power 24 V-3 |
| 94 | Y | Missing CAN message from second unit (articulated systems) |
| 95 | Y | Missing CAN message from FH first zone/first deck |
| 96 | Y | Missing CAN message from DP |
| 97 | R | Hydraulic Pressure High Value |
| 98 | Y | Clutch 1 fuse failure |
| 99 | Y | Clutch 2 fuse failure |
| 100 | Y | Vehicle CAN1 message(s) missing / not valid |
| 701 | Y | Preheater Valeo/Webasto: F13 – Electrical Pressure Regulator defective (CNG only) |
| Preheater Eberspaecher: N/A (not defined) | ||
| Preheater Stroco: 5 – Overvoltage | ||
| 703 | Y | Expansion water tank LOW (HV vehicle battery water circuit) |
| 704 | Y | Expansion water tank CRITICAL (HV vehicle battery water circuit) |
| 705 | Y | Expansion water tank HW error (HV vehicle battery water circuit) |
| 706 | Y | Electrostatic filter clogged |
| 707 | Y | Electrostatic filter faulty |
| 709 | Y | High voltage relay 1 damaged (HV DC electric preheater section 1) |
| 710 | Y | High voltage relay 2 damaged (HV DC electric preheater section 2) |
| 711 | Y | High voltage relay 3 damaged (HV DC electric preheater section 3) |
| 712 | Y | High voltage relay 4 damaged (HV DC electric preheater section 4) |