Section 5 — Troubleshooting

Air-cooled Generators

5.1TROUBLESHOOTING GUIDE

Problem

Cause

Correction

The engine will not crank.

1.

Fuse blown.

1.

Correct short circuit condition,

 

 

 

 

replace 15A fuse in generator

 

 

 

 

control panel.

 

2.

Loose, corroded or defective

2.

Tighten, clean or replace

 

 

battery cables.

 

as necessary.

 

3.

Defective starter contactor. (7 kW)

3.

*

 

4.

Defective starter motor.

4.

*

 

5.

Dead Battery.

5.

Charge or replace battery.

 

 

 

 

 

The engine cranks but

1.

Out of fuel.

1.

Replenish fuel/Turn on fuel valve.

will not start.

2.

Defective fuel solenoid (FS).

2.

*

 

3.

Open #14 wire from

3.

*

 

 

engine control board.

 

 

4.Defective spark plug(s).

5.Valve lash out of adjustment.

6.Choke not operating.

4.Clean, re-gap or replace plug(s).

5.Reset valve lash.

6.Verify choke plate moves freely.

The engine starts hard

1.

Air cleaner plugged

1.

Check, replace air cleaner.

and runs rough.

 

or damaged.

 

 

 

2.

Defective spark plug(s).

2.

Clean, re-gap or replace plug(s).

 

3.

Fuel regulator not set.

3.

Set Fuel Regulator.

 

4.

Fuel pressure incorrect.

4.

Confirm fuel pressure to regulator

 

 

 

 

is 10-12” water column (0.36-0.43

 

 

 

 

psi) for LP, and 5-7” water column

 

 

 

 

(0.18-0.25 psi) for natural gas.

5.Fuel selector in wrong position.

6.Choke remains closed.

5.Move selector to correct position.

6.Verify choke plate moves freely.

The AUTO/OFF/MANUAL switch 1.

Defective switch.

1.

*

is set to OFF, but the engine

2.

AUTO/OFF/MANUAL switch

2.

*

continues to run.

 

wired incorrectly.

 

 

 

3.

Defective control board.

3.

*

 

 

 

 

 

There is no AC output from

1.

Main line circuit breaker is in

1.

Reset circuit breaker

the generator.

 

the OFF (or OPEN) position.

 

to ON (or CLOSED).

 

2.

Generator internal failure.

2.

*

 

 

 

 

 

There is no transfer to

1.

Defective transfer switch coil.

1.

*

standby after utility

2.

Defective transfer relay.

2.

*

source failure.

3.

Transfer relay circuit open.

3.

*

 

4.

Defective control logic board.

4.

*

 

 

 

 

 

Unit consumes large

1.

Engine over filled with oil.

1.

Adjust oil to proper level.

amounts of oil.

2.

Engine breather defective.

2.

*

*Contact the nearest Authorized Dealer for assistance.

26

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