Service&TroubleshootingGuide- HomeGeneratorSystems
Model1938(lOkW)TableofContents
MODEL 1938 (10KW)
GENERAL INFORMATION
SAFETY RULES
In the Interest of Safety
SafetyPractices
5
5
6
ACCESS TO THE GENERATOR 7
GENERATOR COMPONENTS 8
SYSTEM CONTROLS 9
GENERATOR CLEARANCES I 0
FUEL FACTORS I 0
Power Decreases at Altitude & Temperature 10
STARTING GENERATOR (NO LOAD) 10
Electrical Checks II
AUTOMATIC OPERATION
Sequence of Automatic Events
Utility Fail
Engine Warm-up Time Delay
Utility Voltage Pickup Sensor
Retransfer Time Delay
Engine Cool-down Timer
Testing The Automatic Transfer Switch
II
II
12
12
12
12
12
12
GENERATOR AC CONNECTION SYSTEM 12
CHECKING AUTOMATIC OPERATION 13
Stopping The System 13
Generator Load Tests 13
RECONFIGURING THE FUEL SYSTEM 14
SETTING THE EXERCISE TIMER
CIRCUIT INFORMATION
Power During Fault Conditions
Control Module Assembly (CMA)
LED Fault light Conditions
Resetting Fault Detection System
Trickle Charge Operation
14
15
15
15
16
16
16
FUEL SUPPLY 16
CONTROL MODULE CONNECTORS 17
TRANSFER SWITCH MODULE CONNECTORS 17
TROUBLESHOOTING
TROUBLESHOOTING LED FAULTS 20
Dead Unit / Low Battery Voltage:
(No Blink [ ] / One Blink [ • ]) 20
Check Battery: 20
Check Trickle Charging System: 20
Troubleshoot The Trickle Charging System: 20
Check The Step-down Transformer 21
Low Oil Pressure: (Two Blinks [ • • ]) 22
Low Oil Pressure
Troubleshooting Procedure: 22
Low Voltage: (Three Blinks [ ° ° • ]) 23
Low Voltage
Troubleshooting Procedure: 23
Engine Fails To Start: (Four Blinks [ .... ]) 24
Troubleshooting Procedure: 24
Engine Cranks But Fails To Start: 25
Gas Regulator 26
Check Ignition Spark: 28
Engine Fails to Crank: 28
Low Frequency: (Five Blinks [ ..... ]) 29
Low Frequency Troubleshooting
Procedure: 29
Over Speed: (Six Blinks [ ...... ]) 3 I
Over Frequency Troubleshooting
Procedure: 31
High Oil Temperature: (Seven Blinks
[ ....... ]) 32
High Oil Temperature Troubleshooting
Procedure: 32
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