Section 5: Troubleshooting; System Diagnosis; Engine Oil Requirements - Generac GH-410 Manual Del Propietário

Section 5: Troubleshooting

System Diagnosis

Problem
Engine will not crank.
Engine cranks but will not start.
Engine starts hard and runs
rough.
Generator is set to OFF, but the
engine continues to run.
No AC output from generator.
No transfer to standby after
utility source failure.
Unit consumes large amounts
of oil.
* Contact an Independent Authorized Service Dealer for assistance.
Owner's Manual for 60 Hz Air-cooled Generators
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 Wire 14 from engine control board.
4. Defective spark plug(s).
5. valve clearance out of adjustment.
1. Air cleaner plugged or damaged.
2. Defective spark plug(s).
3. Fuel pressure incorrect.
4. Fuel selector in wrong position.
1. Controller wired incorrectly
2. Defective control board.
1. Main line circuit breaker is in the OFF (or
OPEN) position.
2. Generator internal failure.
1. Main line circuit breaker is in the OFF (or
OPEN) position.
2. Defective transfer switch coil.
3. Defective transfer relay.
4. Transfer relay circuit open.
5. 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.
Section 5: Troubleshooting
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. *
4. Clean, re-gap or replace plug(s).
5. Reset valve clearance.
1. Check / replace air cleaner.
2. Clean, re-gap or replace plug(s).
3. Confirm fuel pressure to regulator is 10-12
in. water column (19-22 mm mercury) for LP,
and 3.5 - 7 in. water column (9-13mm
mercury) for natural gas.
4. Turn fuel conversion valve to correct
position.
1. *
2. *
1. Reset circuit breaker to ON (or CLOSED).
2. *
1. Reset circuit breaker to ON (or CLOSED).
2. *
3. *
4. *
5. *
1. Adjust oil to proper level.
2. *

Engine Oil Requirements

3. See
4. Check for oil leaks.
.
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