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| Troubleshooting |
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Problem |
| What To Check | What To Do |
(If check is OK, go to next check) | (When check is not OK, refer to this column) | ||
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Basic Electrical | 1. | Electric supply. Meter must read | Reset building circuit breaker, replace building |
See wiring diagram, page |
| fuses. Try another outlet. | |
28 |
| models and |
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| VAC models. |
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| 2. | Extension cord. Check extension | Replace extension cord. |
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| cord continuity with volt meter. |
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| 3. | Sprayer power supply cord. | Replace power supply cord. See page 26, |
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| Inspect for damage such as bro- | Power Cord Replacement. |
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| ken insulation or wires. |
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| 4. | Fuse. Check replaceable fuse on | Replace fuse after completing motor inspection. |
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| control board (next to ON/OFF | See page 22, Fuse Replacement. |
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| switch). |
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| 5. | Motor leads are securely fas- | Replace loose terminals; crimp to leads. Be |
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| tened and properly connected to | sure terminals are firmly connected. |
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| control board. | Clean circuit board terminals. Securely recon- |
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| nect leads. |
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| 6. | Motor thermal switch. Yellow | Replace motor. See page 27, Motor Replace- |
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| motor leads must have continuity | ment. |
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| through thermal switch. |
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| 7. | Brush cap missing or loose brush | Install brush cap or replace brushes if leads are |
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| lead connections. | damaged. See page 19, Motor Brush |
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| Replacement. |
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| 8. | Brush length which must be 1/4 | Replace brushes. See page 19, Motor Brush |
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| in. (6mm) minimum. | Replacement. |
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| NOTE: Brushes do not wear at |
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| the same rate on both sides of |
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| motor. Check both brushes. |
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| 9. | Motor armature commutator for | Remove motor and have motor shop resurface |
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| burn spots, gouges and extreme | commutator if possible. See page 27, Motor |
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| roughness. | Replacement. |
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| 10. | Motor armature for shorts using | Replace motor. See page 27, Motor Replace- |
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| armature tester (growler) or per- | ment. |
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| form spin test, page 17. |
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| 11. | Pressure control not plugged in | Insert pressure control connector into control |
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| to control board. | board. |
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310824D | 11 |