Section 6: Troubleshooting; Engine Troubleshooting - Generac Power Systems Protector Series Owner's Manual

Section 6: Troubleshooting

Engine Troubleshooting

Problem
The engine will not crank.
The engine cranks but will not
start.
The engine starts hard and runs
rough.
The generator is set to OFF, but
the engine continues to run.
There is no AC output from the
generator.
There is no transfer to standby
after utility source failure.
Unit consumes large amounts of
oil.
* Contact an Independent Authorized Service Dealer (IASD) for assistance.
Owner's Manual for Stationary Diesel Generators
Cause
Fuse blown.
Loose, corroded or defective
battery cables.
Defective starter contact.
Defective starter motor.
Dead Battery.
Out of fuel.
Defective fuel solenoid.
Open F1 5 amp fuse.
Defective fuel system.
No fuel to pump.
Air cleaner plugged or
damaged.
Defective keypad.
Defective control board.
Main line circuit breaker is in the
OFF (OPEN) position.
Generator internal failure.
Defective transfer switch coil.
Defective transfer relay.
Transfer relay circuit open.
Defective control logic board.
Engine over filled with oil.
Engine breather defective.
Incorrect oil type or viscosity.
Damaged gasket, seal or hose.
Correction
Replace 7.5 amp fuse in generator
control panel. Correct short circuit
condition if fuse blows again.
Tighten, clean or replace as
necessary.*
Tighten, clean or replace as
necessary.*
Tighten, clean or replace as
necessary.*
Charge or replace battery.
Replenish fuel. Turn on fuel valve.
*
Replace F1 5 amp fuse if fuse blows
again.*
*
Prime fuel system.*
Check/replace air cleaner.
*
*
Reset circuit breaker to ON (CLOSED)
position.
*
*
*
*
*
Adjust oil to correct level.
*
See Engine Oil Recommendations.
Check for oil leaks.
Troubleshooting
41