Wash pump overload or motor fault; display shows E7 and pump will not run or stops mid-cycle.

Safety first: Disconnect power at the breaker. Do not attempt to free a jammed pump with power connected.

Step-by-step checks:

• Check for obstructions: Remove wash arms and strainers. Inspect the pump intake area for broken glass, utensils, or heavy debris. Remove any foreign objects.
• Access pump housing: If accessible, open the pump clean-out or remove the pump cover to inspect the impeller. Clear any debris and verify the impeller spins freely by hand.
• Reset overload: Some CMA wash pumps have a manual-reset overload on the motor body. Press the reset button if present. If it trips repeatedly, the motor may be failing or overloaded.
• Test motor windings: With wires disconnected, measure motor winding resistance and check for shorts to ground. Replace the wash pump motor assembly if readings are out of specification.

When to call a technician: Pump removal and motor replacement typically require a professional familiar with CMA dishmachines and proper sealing techniques.