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| Troubleshooting |
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TYPE OF PROBLEM | WHAT TO CHECK |
| HOW TO CHECK |
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Sprayer does not run at all | Control is commanding motor to run | 1. Remove pump and try to run sprayer. If motor runs, | |
| but motor shaft does not rotate. |
| check for locked or frozen pump or drive train. |
Digital display shows E=05 |
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Possibly locked rotor condition, an |
| If sprayer does not run, continue to step 2. | |
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| open connection exists between | 2. | Set sprayer to OFF and disconnect power to sprayer. |
| motor and control, there is a | ||
| problem with motor or control board, | 3. | Disconnect motor connector(s) from control board |
| or motor amp draw is excessive. | ||
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| socket(s). Check that motor connector and control | |
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Control board status light blinks |
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| board contacts are clean and secure. If contacts | |
5 times repeatedly |
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| are clean and secure, continue to step 4. | |
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| 4. Set sprayer to OFF and spin motor fan 1/2 turn. | |
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| Restart sprayer. If sprayer runs, replace control |
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| board. If sprayer does not run, continue to step 5. |
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| 5. Perform Spin Test: Test at large | |
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| connector. Disconnect fluid pump from sprayer. Test |
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| motor by placing a jumper across pins 1 & 2. Rotate |
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| motor fan at about 2 revolutions per second. A cogging |
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| resistance to motion should be felt at the fan. |
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| The motor should be replaced if no resistance is felt. |
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| Repeat for pin combinations 1 & 3 and 2 & 3. Pin 4 |
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| (the green wire) is not used in this test. If all spin test |
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| is positive, continue to step 6. |
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| Green Blue Red Black |
STEP 1:
Green Blue Red Black
STEP 2:
Green Blue Red Black
STEP 3: 
311365G | 15 |