Advanced Troubleshooting
Specific Problem | Cause | Solution |
|
|
|
|
|
|
Basic electrical problems. | Motor overheated. | Allow motor to cool for 45 minutes. Retry. |
|
|
|
| Electrical outlet is damaged. | Reset building circuit breaker or replace fuse. Try |
|
| another outlet. |
|
| Check electric supply with volt meter. Meter must |
|
| read 85 to 130V AC. If voltage is too high, do not |
|
| plug sprayer in until outlet is corrected. |
|
|
|
| Control board leads are | Replace any loose terminals. Make sure all leads |
| improperly fastened, | and harnesses are firmly connected. |
| improperly mated, or | ProX7 and ProX9: Check pressure control |
| corroded. | |
|
| harness connection on front side of drive housing. |
|
| Clean control board terminals. Securely reconnect |
|
| leads. |
|
|
|
| Motor brushes are worn. | Check length of BOTH brushes (brushes do not |
|
| wear evenly on both sides of the motor). Brush |
|
| length must be 0.25 in. (6.4mm). If brushes are |
|
| worn replace motor using Motor Kit, page 26. |
|
|
|
| Motor armature commutator | Check for burn spots, gouges and extreme |
| damaged. | roughness. If damaged or if shorts are evident, |
|
| replace motor using Motor Kit, page 26. |
|
|
|
| Fuse is blown. | Find cause for blown fuse before replacing. Turn |
|
| the motor fan to check for a locked gear or pump. |
|
| Use a continuity meter to check for a short to |
|
| ground caused by a pinched wire. |
|
| ProX7 and ProX9: Replace the fuse with correct |
|
| fuse kit. See List of Kits, page 26. |
|
| X5 and X7: The fuse is not replaceable. Replace |
|
| control board. See List of Kits, page 26. |
|
|
|
| Motor armature shorting. | Check for shorts. See Motor Diagnostics, page |
|
| 23. If shorts are evident, replace motor using |
|
| Motor Kit, page 26. |
|
|
|
| Motor armature open circuit. | Check motor leads for continuity. If open circuit, |
|
| check brushes. Use Motor Kit to replace motor. |
|
| See List of Kits, page 26. |
|
|
|
| Control board damaged. | See Control Board Diagnostics, page 25. |
| CAUTION: Do not perform | Replace control board if damaged using Control |
| Board Kit, page 26. | |
| control board diagnostics until |
|
| you have determined the |
|
| armature is good. A damaged |
|
| armature can burn out a good |
|
| control board. |
|
|
|
|
312667B | 17 |
