Generac Power Systems 66781, Owner'S Manual

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Owner’s Manual for Stationary Diesel Generators 45
Section 6
Troubleshooting
6.1 — Engine Troubleshooting
Problem Cause Correction
The engine will not crank.
Fuse blown.
Replace 7.5 amp fuse in generator con-
trol panel. Correct short circuit condi-
tion if fuse blows again.
Loose, corroded or defective bat-
tery cables. Tighten, clean or replace as neces-
sary.*
Defective starter contact.
Tighten, clean or replace as neces-
sary.*
Defective starter motor.
Tighten, clean or replace as neces-
sary.*
Dead Battery. Charge or replace battery.
The engine cranks but will not
start.
Out of fuel. Replenish fuel. Turn on fuel valve.
Defective fuel solenoid. *
Open F1 5 amp fuse.
Replace F1 5 amp fuse if fuse blows
again.*
Defective fuel system. *
No fuel to pump. Prime fuel system.*
The engine starts hard and runs
rough.
Air cleaner plugged or damaged. Check/replace air cleaner.
The generator is set to OFF, but
the engine continues to run.
Defective keypad. *
Defective control board. *
There is no AC output from the
generator.
Main line circuit breaker is in the
OFF (OPEN) position. Reset circuit breaker to ON (CLOSED)
position.
Generator internal failure. *
There is no transfer to standby
after utility source failure.
Defective transfer switch coil. *
Defective transfer relay. *
Transfer relay circuit open. *
Defective control logic board. *
Unit consumes large amounts of
oil.
Engine over filled with oil. Adjust oil to correct level.
Engine breather defective. *
Incorrect oil type or viscosity. See Engine Oil Recommendations.
Damaged gasket, seal or hose. Check for oil leaks.
* Contact an Authorized Service Dealer for assistance.