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| Troubleshooting | |
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TYPE OF PROBLEM | WHAT TO CHECK | HOW TO CHECK | |
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Drywall feed pump does not | Control is commanding motor to | 1. Remove pump pin and try to run unit. If motor runs, | |
run at all | run but motor shaft does not | check for locked or frozen pump or drive train. If unit | |
| rotate. Possibly locked rotor con- | does not run, continue to step 2. | |
Digital display shows E=05 | |||
dition, an open connection exists |
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| 2. Turn unit OFF and disconnect power to drywall feed | ||
| between motor and control, there | ||
| pump. | ||
| is a problem with motor or control | ||
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| board. | 3. Disconnect motor connector(s) from control board | |
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Control board status light |
| leads. Check that motor connector and control board | |
blinks 5 times repeatedly |
| connectors are clean and secure. | |
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| 4. Turn unit OFF and spin motor fan 1/2 turn. Restart | |
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| drywall feed pump. If unit runs, replace control | |
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| board. If unit 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 unit. 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: 
3A0245B | 21 |
