Hobart ML-110973 Troubleshooting, Manual Reset Button on Pump Motor, Symptom, Possible Cause

Models: ML-110974 AM14TC AM14T AM14F ML-110973 ML-110975

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TROUBLESHOOTING

TROUBLESHOOTING

Manual Reset Button on Pump Motor

The motor is equipped with a gray manual reset button near the end cover of the motor. If the pump motor becomes overheated, the thermal overload protector will cause the motor to not operate. If this occurs, press the power switch OFF and allow the motor to cool. Then press the gray manual reset button, press the power switch ON, and resume normal operation.

To avoid a service call, check symptoms and related possible causes. If machine still does not operate properly, contact Service.

SYMPTOM

POSSIBLE CAUSE

No machine operation.

1.

Blown fuse or tripped circuit breaker at power supply.

 

2.

MANUAL / AUTO Switch on AM14T or AM14TC may be on MANUAL;

 

 

turn switch to AUTO (Fig. 12).

 

3.

Check tank water level.

 

 

 

Dishes not clean.

1.

Insufficient wash water due to drain obstruction preventing proper drain

 

 

closing.

 

2.

Worn or torn drain "O" Ring allowing wash water to drain.

 

3.

Loss of water pressure due to pump obstruction.

 

 

DISCONNECT ELECTRICAL POWER SUPPLY (BOTH DISHWASHER

 

 

AND BOOSTER IF APPLICABLE) and drain tank. Check for any

 

 

obstruction at the pump intake.

 

4.

Incorrect water temperature. Check circuit breaker to electric heat

 

 

supply.

 

5.

Incorrect detergent dispensing. Contact your detergent representative.

 

6.

Excessive mineral deposits throughout wash and rinse system. Deliming

 

 

may be necessary.

 

 

 

Spotting silverware, glasses,

1.

Improperly loaded racks.

and dishes.

 

 

 

2.

Incorrect rinse water temperature.

 

3.

Loss of water pressure due to pump obstruction.

 

 

DISCONNECT ELECTRICAL POWER SUPPLY (BOTH DISHWASHER

 

 

AND BOOSTER IF APPLICABLE) and drain tank. Check for any

 

 

obstruction at the pump intake.

 

4.

Excessively hard water.

 

5.

Incorrect detergent for water type.

 

6.

Incorrect rinse additive for water type.

 

7.

Incorrect concentration of detergent, rinse additive and/or sanitizer.

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Hobart ML-110973, ML-110975, AM14F, AM14TC Troubleshooting, Manual Reset Button on Pump Motor, Symptom, Possible Cause