| Troubleshooting | ||
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Problem | What to Check |
| How to check |
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Sprayer does not run at all | Motor is hot or there is a fault in the | Allow sprayer to cool. If sprayer runs | |
AND | motor thermal device. | when cool, correct cause of | |
| overheating. Keep sprayer in cooler | ||
Displays Code 06 message |
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| location with good ventilation. Make | ||
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| sure motor air intake is not blocked. If | |
| sprayer still does not run, replace | ||
Control board status light blinks 6 |
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| motor. | ||
times repeatedly |
| NOTE: Motor must be cooled down | |
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| for the test. | |
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| 1. | Check thermal device |
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| connector (yellow wires) |
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| at control board. |
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| 2. | Disconnect thermal device |
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| connector from control board |
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| socket. Make sure contacts are |
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| clean and secure. Measure |
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| resistance of the thermal |
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| device. If reading is not correct, |
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| replace motor. |
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| Check Motor Thermal Switch: | |
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| Unplug thermal wires. Set meter to | |
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| ohms. Meter should read 100k ohms. | |
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| 3. | Reconnect thermal device |
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| connector to control board |
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| socket. Connect power, turn |
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| sprayer ON and control knob 1/2 |
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| turn clockwise. If sprayer does |
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| not run, replace control board. |
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Basic electrical problems | Motor leads are securely fastened | Replace loose terminals; crimp to | |
| and properly mated | leads. Be sure terminal are firmly | |
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| connected. | |
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| Clean circuit board terminals. | |
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| Securely reconnect leads. | |
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| For loose motor brush lead | Tighten terminal screws. Replace | |
| connections and terminals. | brushes if leads are damaged. | |
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| Brushes must be 1/2 in. [13mm] | Replace brushes. | |
| minimum length. NOTE: Brushes do |
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| not wear at the same rate on both |
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| sides of motor. Check both brushes. |
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| Broken or misaligned motor brush | Replace spring if broken. Realign | |
| springs. Rolled portion of spring must | spring with brush. | |
| rest squarely on top of brush. |
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| Motor brushes may be binding in | Clean brush holders. Remove carbon | |
| brush holders. | with small cleaning brush. Align brush | |
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| leads with slot in brush holder to | |
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| assure free vertical brush movement. | |
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| Motor armature commutator for burn | Remove motor and have motor shop | |
| spots, gouges or extreme roughness. | resurface commutator if possible. | |
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334530A | 37 |
