Troubleshooting
WARNING
Pressure Relief Procedure
To reduce the risk of serious bodily injury always follow this procedure before checking or repairing the sprayer.
1.Engage the gun safety latch.
2.Turn the ON/OFF switch to OFF.
3.Unplug the power supply cord.
4.Disengage the gun safety latch. Hold a metal part of the gun firmly to the side of a grounded metal pail, and trigger the gun to relieve pressure.
5.Engage the gun safety latch.
6.Open the pressure drain valve. Leave the valve open until you are ready to spray again.
If you suspect that the spray tip or hose is completely clogged, or that pressure has not been fully relieved after following the steps above, VERY SLOWLY
loosen the tip guard retaining nut or hose end cou- pling to relieve pressure gradually, then loosen completely. Now clear the tip or hose.
Check everything in the chart before disassembling the sprayer.
PROBLEM | CAUSE | SOLUTION | |
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Electric motor won't run | Power cord or extension cord un- | Check, reset or replace. | |
| plugged or damaged, or building cir- |
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| cuit breaker or fuse has tripped |
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| Motor overload switch1 has opened | Unplug sprayer, relieve pressure, allow | |
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| motor to cool, decrease pressure. | |
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| Pressure setting too low | Increase pressure. | |
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| Pressure control frozen or damaged | Try to thaw2, or replace pressure control. | |
| by over±pressurization |
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Electric motor stops while | Power cord or extension cord un- | Check, reset or replace. | |
spraying | plugged, or damaged, or building |
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| circuit or fuse is blown |
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| Motor overload switch1 has opened | Unplug sprayer, relieve pressure, allow | |
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| motor to cool, clear motor air passages of | |
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| dirt and overspray; decrease pressure. | |
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| Pressure setting too low | Increase pressure. | |
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| Spray tip plugged | Remove and clean. | |
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| Wrong type extension cord | Use maximum 200 ft (61 m), 3 wire, | |
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| 12 gauge, grounded extension cord. | |
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Electric motor runs, but low | Piston ball check not seating | Service pump. See page 14. | |
paint output or no paint out- |
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Piston packings worn or damaged | Replace piston. See page 14. | ||
put, and pump is not stroking | |||
See the PROBLEM, ªNot |
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Intake valve ball check not seating | Service pump. See page 14. | ||
enough paint pressureº, on |
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Pump is frozen | Thaw2 | ||
page 12, also. | |||
| Pressure control frozen or damaged | Try to thaw2, or replace pressure control. | |
| by overpressurization3 |
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| Drive assembly damaged | Replace drive housing. See page 16. | |
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| Pump worn or damaged | Replace pump. See page 14. | |
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| Sprayer is not primed. | Follow the procedure on page 7 again. | |
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