Section 5 - Troubleshooting - Generac Power Systems 8kW Owner's Manual

Section 5
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 Authorized Service Dealer for assistance.
Automatic Standby Generator Owner's Manual
Troubleshooting
Cause
1. Fuse blown.
2. Loose, corroded or defective
battery cables.
3. Defective starter contact.
4. Defective starter motor.
5. Dead Battery.
1. Out of fuel.
2. Defective fuel solenoid (FS).
3. Open #14 wire from engine control
board.
4. Defective spark plug(s).
5. Valve lash out of adjustment.
1. Air cleaner plugged
or damaged.
2. Defective spark plug(s).
3. Fuel regulator not set.
4. Fuel pressure incorrect.
5. Fuel selector in wrong position.
6. Choke remains closed.
1. Defective button.
2. Buttons wired incorrectly.
3. Defective control board.
1. Main line circuit breaker is in
the OFF (or OPEN) position.
2. Generator internal failure.
1. Defective transfer switch coil.
2. Defective transfer relay.
3. Transfer relay circuit open.
4. Defective control logic board.
1. Engine over filled with oil.
2. Engine breather defective.
3. Improper type or viscosity of oil.
4. Damaged gasket, seal or hose.
Correction
1. Correct short circuit condition by
replacing 7.5 Amp fuse in generator
control panel.
2. Tighten, clean or replace
as necessary.*
3. *See #2.
4. *See #2.
5. Charge or replace battery.
1. Replenish fuel/Turn on fuel valve.
2. *
3. Repair wiring.
4. Clean, re-gap or replace plug(s).
5. Reset valve lash.
1. Check/replace air cleaner.
2. Clean, re-gap or replace plug(s).
3. Set fuel regulator.
4. Confirm fuel pressure to regulator
is 10-12" water column (19-22mm
mercury) for LP, and 5-7" water
column (9-13mm mercury) for
natural gas.
5. Move selector to correct position.
6. Verify choke plate moves freely.
1. *
2. Repair wiring or replace switch.
3. *
1. Reset circuit breaker
to ON (or CLOSED).
2. *
1. *
2. *
3. *
4. *
1. Adjust oil to proper level.
2. *
3. See "Engine Oil
Recommendations".
4. Check for oil leaks.
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