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Cause and solution of heating and leakage of motor in hot water circulating pump

Hot water circulating pump motor heating causes and Solutions

1. Hot water circulation pump flow is too large, overload operation. Close small outlet valve

2. Hot water circulating pump motor bearing damage. Replace bearing.

3. Lack of voltage. Voltage regulator.

4. Rub. Check exclusion.

The reason of leakage of the hot water circulating pump

1. Pump body with sand holes or broken. Welding repair or replacement.

2. Hot water circulation pump mechanical seal wear. Replacement.

3. Mounting bolts loose. Fastening。

4. Sealing surface is not smooth. Dressing.

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