Rheem
Ground Fault / Leakage Current
Heater causes GFCI or RCD to trip when operating
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Moisture in electrical components, Damaged insulation, Faulty blower or fan motor, Incorrect bonding/grounding
How to Fix / Troubleshooting
Safety First: Turn off power. Water and electricity are a dangerous combination.
- Inspect for moisture: Check inside the control compartment and around wiring for signs of water intrusion. Dry thoroughly and correct any leaks.
- Check motor and wiring: Test suspect motors and wiring harnesses for continuity to ground. Replace any component with low insulation resistance.
- Verify bonding and grounding: Ensure the heater is properly bonded to the pool bonding grid and grounded per code.
- Consult electrician: Persistent GFCI trips should be evaluated by a licensed electrician familiar with pool equipment.
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Repair Difficulty
Hard
4/5
Required Part
Blower Motor / Wiring Harness
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