DAB Overheating Motor (Non‑Tripping)

Pump motor runs hot to the touch, even though it continues to operate

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Possible Causes

Blocked cooling vents on DAB motor, High ambient temperature, Incorrect voltage or frequency, Overloaded due to system head or wrong impeller size

How to Fix / Troubleshooting

Safety first: Turn off power and allow the motor to cool before handling.

Steps to check:

  • Clean ventilation: Remove dust, leaves, and debris from the motor cooling fins and fan cover.
  • Improve ventilation: Ensure adequate airflow around the pump. Do not enclose it in a sealed box without ventilation.
  • Verify electrical supply: Confirm voltage and frequency match the DAB motor nameplate.
  • Check hydraulic load: Ensure the pump is correctly sized and not operating against closed valves or undersized plumbing.
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Repair Difficulty

Easy 2/5

Required Part

DAB pump motor assembly
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