Troubleshooting
TYPE OF PROBLEM | WHAT TO CHECK |
| HOW TO CHECK | |
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Drywall feed pump does not | Check transducer or transducer | 1. | Turn unit OFF and disconnect power. | |
run at all | connections (control board is not | 2. | Check transducer and connections to control board. | |
| detecting a pressure signal). | |||
Digital display shows E=03 | ||||
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| 3. | Disconnect transducer from control board socket. | |
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| Check to see if transducer and control board | |
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| contacts are clean and secure. | |
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Control board status light |
| 4. | Reconnect transducer to control board socket. | |
blinks 3 times repeatedly |
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| Connect power, turn unit ON, set pump to PRIME | |
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| position, and turn control knob 1/2 turn clockwise. If | |
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| drywall feed pump does not run, turn unit OFF and | |
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| go to next step. | |
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| 5. | Connect a confirmed working transducer to control | |
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| board socket. | |
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| 6. | Connect power, turn unit ON, set pump to PRIME | |
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| position, and turn control knob 1/2 turn clockwise. If | |
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| drywall feed pump runs, install new transducer. | |
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| Replace control board if unit does not run. | |
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| 7. | Check transducer resistance with ohmmeter (less | |
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| than 9k ohm between red and black wires and | |
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| ohm between green and yellow wires). | |
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20 | 3A0245B |
