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21
PROBLEMS POSSIBLE CAUSES REMEDIES
Low Output
1. Worn spray tip. 1.Relieve pressure, Replace tip.
2. Verify pump does not continue to
stroke when gun trigger is released.
2. Service pump.
3. Prime valve leaking. 3. Relieve pressure, Then repair prime
valve.
4. Suction tube connections 4. Tighten any loose connections.
Check o-ring on suction tube.
5. Electric supply with volt meter.
Meter must read 220-240 Vac or
100-120 Vac (According to models).
Low voltages reduce sprayer
performance.
5. Reset building circuit breaker;
replace building fuse. Repair electrical
outlet or try another outlet.
6. Extension cord size and length. 6. Replace with a correct, grounded
extension cord.
7. Leads from motor to circuit board
for damaged or loose wire
connectors. Inspect wiring insulation
and terminals for signs of
overheating.
7. Be sure male terminal pins are
centered and firmly
connected to female terminals.
Replace any loose terminals or
damaged wiring. Securely reconnect
terminals.
8. Worn motor brushes which must be
greater than 1/4 in. (6 mm).
8. Replace brushes.
9. Motor brushes binding in brush
holders.
9. Clean brush holders. Remove
carbon dust by using compressed air to
blow out brush dust.
10. Low stall pressure. Turn pressure
control knob fully clockwise.
10. Replace pressure control
assembly.
11. Motor armature for shorts by
using an armature tester (growler) or
perform spin test.
11. Replace motor
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