Shark HP-5030D manual troubleshooting, problem, possible cause, solution, burner will not, light

troubleshooting

problem	possible cause	solution
burner will not	Disconnected or short in electrical	All wire contacts should be clean and tight.
light	wiring	No breaks in wire.
	Burner motor thermal protector	If tripped, check voltage, connections and
	tripped	extensions for cause. Check fuel pump
		shaft rotation for binding, causing motor to
		overheat.
	On/off switch defective	Check continuity through burner switch.
	Heavy sooting on coil and burner,	Clean as required.
	can cause interruption of air flow
	and shorting of electrodes
	Improper electrode setting	Clean and test according to diagram in
		operator’s manual.
	Fuel not reaching combustion cham-	Check fuel pump for proper flow. Check
	ber	solenoid flow switch on machines with spray
		gun control for proper ON/OFF flow switch.
	Fuel solenoid malfunction	Check by placing screwdriver inside coil
		then turn machine on, open spray gun and
		check for magnetic pull.
	Clogged burner nozzle	Replace.
	Water not turned on	Turn on water to activate burner flow switch.
	Flow switch malfunction	Remove, test for continuity and replace as
		needed.
Machine smokes	Improper fuel or water in fuel	Drain tank and replace contaminated fuel.
	Low fuel pressure	Adjust fuel pump pressure to specifications.
	Air leaks in fuel lines	Check fuel lines for leaks or air bubbles.
		Tighten or replace as needed.
	Plugged or dirty burner nozzle	Replace.
	Faulty burner nozzle spray pattern	Replace nozzle.
	Heavy accumulation of soot on coils	Remove coils and burner assembly. Clean
	and burner assembly	thoroughly.
	Misaligned electrode	Realign electrodes to specifications.
	Fuel filter partially clogged	Replace as needed.
	Obstruction in smoke stack	Check for insulation blockage or other for-
		eign objects.
	Soot build-up on coils	Clean coils with soot remover.
	Lime build-up in coils	Clean inside of coils using coil cleaner.

97-6133 • Rev. 5/07

PRESSURE WASHER Troubleshooting Guide

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