DeVillbiss Air Power Company MGP-2225CWH owner manual Troubleshooting, Problem Cause Correction

TROUBLESHOOTING

	PROBLEM	CAUSE		CORRECTION
	Engine will not start	1.	No fuel.	1.	Add fuel.
(see Engine Manual for		2.	Low oil (if oil-alert equipped).	2.	Add required amount of oil.
further engine trouble-		3.	Pressure buildup after initial	3.	Squeeze gun trigger to relieve pres-
shooting)			use.		sure.
		4.	Not primed or choked.	4.	Push primer bulb 3 times or choke
					engine.
		5.	Spark plug wire not attached.	5.	Attach spark plug wire.
		6.	Engine ON/OFF switch in OFF	6.	Place engine ON/OFF switch to ON
			position (If equipped.)		position.
No or low pressure		1.	Nozzle in wrong position.	1.	Rotate nozzle to high pressure setting
(initial use)		2.	Low water supply.	2.	Water supply must be at least 5 GPM
					@ 20 PSI
		3.	Leak at high pressure hose.	3.	Repair leak. Apply thread sealing tape
					if necessary.
		4.	Nozzle obstructed.	4.	Clean nozzle with nozzle cleaning tool,
					flush out obstruction with clean water.
		5.	Water filter screen clogged.	5.	Remove and clean filter.
		6.	Air trapped in hose.	6.	Turn off engine, then water supply.
					Disconnect water supply from pump
					inlet, then turn water supply on to
					remove all air from hose. When there is
					a steady stream of water present, turn
					water supply off. Reconnect water
					supply to pump inlet and turn on water
					supply. Squeeze trigger of spray gun
					to remove remaining air.

Will not draw chemicals	1.	Nozzle not in low pressure	1.	Refer to Operation section for low
		position.		pressure operation of nozzle.
	2.	Chemical filter clogged.	2.	Clean filter.
	3.	Chemical hose not in chemi-	3.	Ensure end of chemical hose is fully
		cal.		submerged into chemical.
No or low pressure after	1.	Worn seal or packing.	1.	Have replaced by AWSC.
a period of normal use.	2.	Worn or obstructed valves.	2.	Have replaced by AWSC.
Water leaking at gun to	1.	Worn o-ring.	1.	Check and replace.
wand connection	2.	Loose hose connection.	2.	Tighten connection. If leak persists,
				disassemble connection, apply thread
				sealing tape to threads and reassemble
Water leaking at pump	1.	Loose connections.	1.	Tighten.
	2.	Piston packings worn.	2.	Have replaced by AWSC.
Oil leaking at pump	1.	Oil seals worn.	1.	Have replaced by AWSC.
	2.	Loose drain plug.	2.	Tighten.
	3.	Worn fill plug o-ring.	3.	Check and replace.
	4.	Pump overfilled.	4.	Check for correct amount.
	5.	Incorrect oil used.	5.	Drain and fill with correct amount
				and type of oil.

16 — ENG