Guardian Technologies 004700-0, 004708-0 Troubleshooting Guide, Problem Cause Correction

Section 4 – Troubleshooting

Recreational Vehicle Generator

TROUBLESHOOTING GUIDE

Problem	Cause		Correction
The engine will not crank.	1.	Fuse blown	1.	Replace fuse.
	2.	Loose, corroded or defective	2.	Tighten, clean or replace
		battery cables		as necessary.
	3.	Defective engine Start/Stop	3.	Replace Start/Stop switch.
		switch
	4.	Defective starter contactor	4.	Replace contactor.
	5.	Defective starter motor	5.	Replace starter motor.
	6.	Low or defective battery	6.	Charge or replace battery.
The engine cranks but	1.	Out of fuel	1.	Replenish fuel.
will not start.	2.	Defective fuel pump	2.	Replace fuel pump.
	3.	Open #14 wire from	3.	Check connections and.
		engine control board		insulation of #14 wires.
	4.	Flooded engine	4.	Wait 5-10 minutes before trying.
	5.	Defective spark plug(s)	5.	Clean, re-gap or replace plug(s).
	6.	Fuel line shut-off closed	6.	Open fuel line shut-off.
	7.	Plugged fuel filter	7.	Clean or replace fuel filter.
The engine starts hard	1.	Air cleaner	1.	Check, clean or replace air cleaner.
and runs rough.		plugged or damaged
	2.	Defective spark plug(s)	2.	Clean, re-gap or replace plug(s).
The engine starts, but shuts	1.	Engine oil level low	1.	Check oil and add oil as needed.
down when the Start/Stop	2.	Defective low oil	2.	Replace pressure switch.
switch is released.		pressure switch
	3.	Defective high temperature	3.	Replace temperature switch.
		switch
	4.	Defective engine control board	4.	Replace control board.
	5.	Overheated engine	5.	Check that the airflow
				openings are adequate.

The Start/Stop switch is set to Stop, but the engine continues to run.

1.	Defective Start/Stop switch	1.	Replace switch.
2.	Open/Disconnected #18 wire	2.	Reconnect or close wire.
	between Start/Stop switch
	and engine control board

	3.	Open/Disconnected #0 wire	3.	Reconnect or close wire.
		between Start/Stop switch
		and engine control board
	4.	Defective engine control board	4.	Replace control board.
There is no AC output from	1.	Main line circuit breaker open	1.	Reset circuit breaker
the generator.				to ON (or closed).
	2.	Fault with vehicle circuit	2.	Reset and replace if necessary.
		breaker and/or fuses

3.Transfer switch set to NORMAL

4.Start switch not held long enough to flash the field

3.Set switch to GENERATOR.

4.Stop, then restart the engine (Hold Start switch for at least 2 seconds).

5. Generator internal failure	5. Contact aN Authorized Service
	Dealer.

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