TROUBLESHOOTING SECTION
WARNING: Inspection, testing and repair of electrical equipment should only be performed by a qualified service techni- cian. Many of the tests require that the unit have power to it and live electrical components be exposed.
USE EXTREME CAUTION WHEN TESTING THE MACHINE.
Symptom | Possible Cause | Action |
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Dishmachine fills continuously, only when | Faulty fill microswitch. | Replace microswitch. |
the power is on. |
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| Cam timer stalled in fill position. | If cam timer is not rotating, check the |
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| voltage to the motor. If voltage is correct, |
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| replace timer. |
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| Shorted out ON/FILL switch. | Check the voltage across the switch. If the |
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| voltage is incorrect, replace the switch. |
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| Shorted/defective liquid level control board | Check voltage going to each component |
| or probe. | and ensure they are wired correctly. If |
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| satisfactory, replace the defective part. |
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Dishmachine runs with the door open. | Door switch shorted out/wired incorrectly. | Check the wiring of the door switch, if |
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| correct, replace the door switch. |
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| Faulty wash relay (wash relay welded | Turn machine off, if wash relay doesn't |
| closed). | release, replace contactor. |
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| Faulty control relay. | Measure the continuity between terminals # |
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| 6 and #9. If there is no continuity, replace |
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| the relay. |
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Low wash water pressure. | Water level is too low. | Check to ensure that the drain stopper is in |
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| and has an |
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| LLC board and probe are functioning |
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| properly. |
Pump intake strainer is clogged.
Remove and clean strainer.
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