Hobart 120CU20, Operation And Maintenance Manual With Illustrated Parts List

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OM-2228 / Operation and Maintenance Manual
120CU20 / Series 500120 / 400 Hz. Generator Set
October 15, 2013 Chapter 2-4
Page 24
Faults
Fault
code
Name Possible Cause(s) Corrective Action
OVERTEMP FAULT Defective thermal switch Replace switch.
_ _.46
TRB INPUT CONTACTOR
FAULT Defective input contactor.
Defective TRB board. Replace input contactor.
Replace TRB board.
_ _.47
_ _.48 GEN ID FAULT
The REG board cannot find
the generator.
Defective REG board
Check for ID R2 on TB1.
Check for broken wire on ID R2
on TB1.
Replace REG board.
_ _.49
CTL POWER MODULE ID
FAULT
Call Factory Call Factory
_ _.50 TRB SELF-TEST FAULT TRB board defective Replace TRB board.
_ _.55 EIB LOW FUEL FAULT
Fuel tank level is below
1
/
8
tank.
Fill fuel tank.
_ _.60 CTL COMM FAULT Defective CTL board Replace CTL board.
_ _.61 EIB COMM FAULT Defective EIB board Replace EIB board.
_ _.62 ESB COMM FAULT Defective ESB board Replace ESB board.
_ _.63 REG COMM FAULT Defective REG board Replace REG board.
_ _.64 TRB COMM FAULT Defective TRB board Replace TRB board.
_ _.66
EIB LOW ENGINE COOLANT
FAULT Engine coolant level is too low.
Engine is loosing coolant.
Refill radiator.
Check for leaks and replace
defect components.
_ _.67
EIB ENGINE OVERTEMP
FAULT
Engine is over-heated.
Coolant level is too low.
Radiator is dirty or obstructed.
Defective EIB board
Defective temperature switch Let engine cool then restart.
Check coolant level and add.
Clean radiator.
Replace EIB board.
Replace switch.
_ _.68
EIB LOW OIL PRESSURE
FAULT
Engine oil level is too low.
Defective EIB board.
Defective oil pressure switch. Check oil level and add.
Replace EIB board.
Replace switch.