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Troubleshooting
309674M 11
Note: for the following electric prob-
lems, refer to wiring diagram, page
22, 23, and 24 to identify Test Points
(TP).
Power supply cord. Connect volt
meter between TP1 (neutral) and
TP2. Plug in sprayer. Meter must
read:
• 210-255 VAC for 220-240V
models
• 85-130 VAC for 100-120V
models.
Unplug sprayer.
Replace power supply cord, page 24.
ON/OFF Switch. Connect volt meter
between L1 and L2 terminal on
ON/OFF switch. Plug in sprayer and
turn ON. Meter must read:
• 210-255 VAC for 220-240V
models
• 85-130 VAC for 100-120V
models.
Replace ON/OFF switch. See page
22.
All terminals for damage or loose fit. Replace damaged terminals and
reconnect securely.
Low Output For worn spray tip. Relieve pressure, page 7. Then
replace tip. See your separate gun
manual for additional instruction.
Verify pump does not continue to
stroke when gun trigger is released.
Service pump. See page 15.
Filter clogged. Relieve pressure, page 7. Check
and clean filter.
Prime valve leaking. Relieve pressure, page 7. Repair
prime valve.
Suction hose kinks and/or loose
connection.
Correct kink and/or tighten any loose
connections.
Electric supply with volt meter. Low
voltages reduce sprayer
performance. Meter must read:
• 210-255 VAC for 220-240V
models
• 85-130 VAC for 100-120V
models.
Reset building circuit breaker;
replace building fuse. Repair
electrical outlet or try another outlet.
Extension cord size and length; must
be at least 12 gauge wire and no
longer than 300 ft. Longer cord
lengths reduce sprayer performance.
Replace with a correct, grounded,
extension cord.
Type of Problem
What to Check
(if check is OK, go to next)
What to Do
(When check is not OK, refer to this
column)