Shark SGP-3020, SGP-3530 Troubleshooting, Problem Possible Cause Solution LOW Operating, Pressure

TROUBLESHOOTING

PROBLEM	POSSIBLE CAUSE	SOLUTION
LOW OPERATING	Water supply is insufficient	Use larger supply hose; clean filter at water
PRESSURE		inlet.
	Spray nozzle is old, worn or incorrect	Match the nozzle number to the machine
		and/or replace with new nozzle.
	Belt slips	Tighten or replace belt; use correct belt.
	Plumbing or hose is leaking	Check plumbing system for leaks. Retape
		leaks with teflon tape.
	Unloader is faulty or misadjusted	Adjust unloader for proper pressure. Install
		repair kit when necessary or replace.
	Packing in pump is worn	Install new packing kit.
	Discharge valve in pump or inlet is fouled	Check inlet and discharge valve.
	or dirty
	Discharge valve or inlet is worn	Replace with valve kit.
	Spray nozzle has obstruction	Remove obstruction.
	Steam pressure control valve is leaking	Rebuild or replace as necessary.
	(where applicable)
	Engine RPM is slow	Set engine speed at proper specifications /
		see serial plate.
BURNER WILL	There is little or no fuel	Fill tank with fuel.
NOT LIGHT
	Improper fuel or water in fuel	Drain fuel tank and fill with proper fuel.
	Fuel line is clogged	Clean or replace fuel line.
	Fuel filter is plugged	Replace fuel filter as needed.
	Burner air bands are misadjusted	Readjust air bands for clean burn.
	Little or no fuel pressure from fuel pump	Increase fuel pressure to specification and/
		or replace fuel pump.
	Burner transformer is faulty	Test transformer for proper arc between
		contacts. Replace as needed.
	Electrical wiring is disconnected or has	All wire contacts should be clean and tight
	short in it	with no breaks in wire.
	Flex coupling is slipping on fuel pump	Replace if needed.
	shaft or burner motor shaft
	ON-OFF switch is defective	Check for electrical current reaching burner
		assembly with burner switch on. Replace
		switce if needed.
	Heavy sooting on coil and burner can	Clean as required.
	cause interruption of air flow and shorting
	of electrodes
	Electrode setting is improper	Check and reset according to diagram in
		manual.
	25 amp circuit breaker tripped	Push in reset button.
	Bridge rectifier defective	Test and replace.
	12V DC relay defective	Test and replace.
	Fuel is not reaching combustion chamber	Check fuel pump for proper flow. Check so-
		lenoid flow switch on machines with spray
		gun control for proper on-off flow control.

PRESSURE WASHER Troubleshooting Guide

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97-6132, 97-6151 • REV. 11/04