Graco Inc 309225W specifications Grounding and Electrical

		Troubleshooting
Problem	Cause	Solution
Motor is hot and runs intermittently.	Vent holes in enclosure are plugged	Keep vent holes clear of
This is NOT a thermal overload con-	or sprayer is covered.	obstructions and overspray and
dition. Motor automatically shuts off		keep sprayer open to air.
due to excessive heat. Damage can
	Extension cord is too long or not a	Replace extension cord. Read
occur if cause is not corrected.
	heavy enough gauge.	Grounding and Electrical
Thermal Overload, page 5.
		Requirements, page 5.
	Unregulated electrical generator	Use electrical generator with a
	being used has excessive voltage.	proper voltage regulator. Sprayer
		requires 120VAC, 60 Hz,
		1500-Watt generator.
	Sprayer was operated at high	Decrease pressure setting or
	pressure with very small tip which	increase tip size.
	causes frequent motor starts and
	excessive heat build up.
Building circuit breaker opens after	Too many appliances are plugged in	Free up circuit (unplug things), or
sprayer operates for 5 to 10 minutes.	on same circuit.	use a less busy circuit.
	Sprayer electrical cord is damaged.	Check broken insulation or wires.
		Replace electrical cord if
		damaged.
	Extension cord is damaged or too	• Plug in something that you
	long or not a heavy enough gauge.	know is working to test exten-
		sion cord.
		• Replace extension cord.
Fan pattern varies dramatically while	Pressure control switch is worn and	Take sprayer to Graco/magnum
spraying.	causing excessive pressure variation.	authorized service center.
OR
Sprayer does not turn on promptly
when resuming spraying.
Cannot trigger spray gun.	Spray gun trigger safety is locked.	Rotate trigger safety lever to
		unlock SAFETY, page 8.
Spray comes out of spray gun in two	Reversible spray tip is in UNCLOG	Rotate arrow-shaped handle on
thick streams.	position.	spray tip so it points forward in
		SPRAY position.
Paint is coming out of pressure	Pressure control switch is worn.	Take sprayer to Graco/magnum
control switch.		authorized service center.
Spray-Prime/Drain valve actuates	System is over pressurizing.	Take sprayer to Graco/magnum
automatically relieving pressure		authorized service center.
through drain tube.
Paint leaks down outside of pump.	Pump packings are worn.	Replace pump packings.

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