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Scott PrinceAug 9, 2025
What to do if EVAPCO Accessories fan motors are overamping?
- BBilly LindseyAug 9, 2025
If EVAPCO Accessories fan motors are overamping, several factors could be responsible. It could be due to a reduction in air static pressure. For a forced draft unit, make sure the pump is on and water is flowing over the coil. If the pump is off, and the unit wasn't designed for dry operation, the motor might over-amp. Also, check the voltage across all three legs of the motor for any electrical issues. Verify the fan rotates correctly, and if not, switch the leads. Ensure the fan and motor turn freely by hand, checking for internal damage or bearing issues. Finally, check for proper belt tension, as extreme tension can cause overamping.