6.4Troubleshooting the
PROBLEM | PROBABLE CAUSES | CORRECTIVE ACTION | |
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| A. If the pump runs normally after | |
| A. Thermal overload switch has | resetting the thermal overload | |
| switch, the pump was overheated. | ||
| tripped on an overheated motor. | ||
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| Test: If the pump stopped | Always filter with the cooking | |
| oil/shortening at or near frying | ||
| suddenly during the filtering | ||
| temperature. | ||
| process, especially if after several | ||
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| filtering cycles, the pump motor | Allow the pump motor to cool off | |
| has probably overheated. Place | ||
| for about 10 minutes after | ||
| the filter handle in the OFF | ||
| filtering two full frypots one after | ||
| position, allow the pump to cool | ||
| the other. | ||
| for at least 45 minutes, and then | ||
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| ||
| press the reset button on the pump | Check the filter paper after each | |
| motor. Attempt to activate the | ||
| frypot is filtered. Replace the | ||
| pump. | ||
| paper if there is a large | ||
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| ||
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| accumulation of sediment. | |
Pump won’t start. | B. Failed filter handle microswitch. |
| |
OR | Test: If this is a | B. If the switch is loose, tighten the | |
attempt to operate the pump using | |||
Pump stops during | a different handle. If the pump | screws holding it in place, | |
ensuring that when the handle is | |||
starts, the handle microswitch is | |||
filtering. | placed in the ON position, the | ||
out of alignment or has failed. | |||
| lever on the microswitch is | ||
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| ||
| When the handle is placed in the | pressed firmly against the switch. | |
|
| ||
| ON position, the lever on the | If the switch has failed, call | |
| microswitch should be firmly | ||
| FASC. | ||
| pressed against the switch. If so, | ||
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| ||
| the switch has failed. If not, the |
| |
| switch is loose and/or misaligned. |
| |
| C. Pump blockage. | C. Pump blockages are usually | |
| Test: Close the drain valve. Place | caused by sediment | |
| the pump due to improperly sized | ||
| the filter handle in the OFF | or installed filter paper and failure | |
| position, allow the pump to cool | to use the crumb screen. Call | |
| for at least 45 minutes, and then | FASC to have blockage cleared. | |
| press the reset button on the pump |
| |
| motor. Pull the filter pan from the | Ensure that filter paper is of the | |
| unit and then activate the pump. | proper size and is installed | |
| If the pump motor hums and then | properly, and that the crumb | |
| stops, the pump is blocked. | screen is used. |