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WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 7.
TYPE OF PROBLEM
Building circuit breaker opens
Sprayer circuit breaker opens
Sprayer will not run
Poor spray pattern
Troubleshooting
WHAT TO CHECK
If check is OK, go to next check
Check all electrical wiring for damaged
insulation.
Check for other electrical appliances on
circuit.
Check position of 15–20 (Lo-High) amp
switch.
Check for locked motor rotor. Unplug cord
and try to turn fan blades with a screwdriver.
Check for shorted motor. Use ohmmeter to
check for shorts between motor leads or
between motor leads and motor frame.
Check electrical supply with voltmeter. Meter
should read 105–125 VAC.
Check pressure control knob setting. Motor
will not run if it is at minimum setting (fully
counterclockwise).
Check for a clogged spray tip. Refer to
separate gun or tip instruction manual.
Check extension cord for visible damage.
Use a volt meter or test lamp at extension
cord outlet to check.
Check sprayer power supply cord for visible
damage such as broken insulation or wires.
Check electrical supply with volt meter. Meter
should read 105–125 VAC.
Check for motor damage. Remove drive
housing assembly. See page 23. Try to rotate
fan by hand.
Check for worn spray tip.
Before servicing this equipment always make sure to
Relieve the Pressure.
Check all possible problems and solutions before
disassembling the unit.
WHAT TO DO
When check is not OK refer to this column
Replace any damaged wiring.
Shutdown other electrical appliances on
circuit.
Put switch in 15 amp (LO) position.
Repair gear train or pump, if damaged. Thaw
the sprayer, if frozen; See NOTE 1. Replace
the pressure control, if damaged.
Inspect for damage to motor brush leads.
Replace motor, if necessary.
Connect to outlet of correct voltage.
Slowly increase pressure setting to see if
motor starts.
Relieve pressure. Refer to separate gun or
tip instruction manual for tip cleaning.
Replace extension cord.
Replace power supply cord.
Reset building circuit breaker; replace
building fuse. Try another outlet.
Replace motor (1) if fan won't turn.
Relieve pressure and then replace the tip.
See the separate gun or tip manual.
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