Graco Pro 230ES Repair And Parts Manual page 13

Type of Problem
Low Output
3A2817A
What to Check
(if check is OK, go to next)
For worn spray tip.
Verify pump does not continue to
stroke when gun trigger is released.
Filter clogged.
Prime valve leaking.
Suction hose kinks and/or loose
connection.
Electric supply with volt meter. Low
voltages reduce sprayer perfor-
mance. Meter must read 85-130
VAC for 120V models.
Extension cord size and length;
must be at least 12 gauge wire and
no longer than 300 ft. Longer cord
lengths reduce sprayer perfor-
mance.
Leads from motor to pressure con-
trol circuit board for damaged or
loose wires or connectors. Inspect
wiring insulation and terminals for
signs of overheating.
Low stall pressure.
Troubleshooting
What to DO
(When check is not OK, refer to
this column
Relieve pressure, page 9. Then
replace tip. See your separate gun
manual for additional instruction.
Service pump. See Displacement
Pump Replacement, page 17.
Relieve pressure, page 9. Check
and clean air filter.
Relieve pressure, page 9. Repair
prime valve.
Connect kink and/or tighten any
loose connections.
Reset building circuit breaker;
replace building fuse. Repair electri-
cal outlet or try another outlet.
Replace with a correct, grounded,
extension cord.
Be sure male terminal blades are
centered and firmly connected to
female terminals. Replace any
loose terminal or damaged wiring.
Securely reconnect terminals.
Do either or both:
a. Turn pressure control knob
fully clockwise. Make sure
pressure control knob is
properly installed to allow full
clockwise position.
b. Try a new transducer.
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