MSPA
Short Circuit or Ground Fault in Spa Electrical System
MSPA spa trips the household breaker or RCD as soon as it is turned on.
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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
Shorted heater element to ground, Water inside motor/control housing, Damaged power cord insulation, Shorted circulation pump or blower motor
How to Fix / Troubleshooting
Safety first: Repeated tripping indicates a serious electrical fault. Do not repeatedly reset breakers without finding the cause.
- Inspect for visible damage: Check the power cord, plug, and motor unit for burn marks, melted plastic, or obvious water ingress.
- Dry unit: If water is present inside the control housing, dry thoroughly and correct the source of the leak before retesting.
- Isolate components (advanced): With power disconnected, disconnect heater, pump, and blower one at a time from the PCB. Reconnect power and see if the breaker still trips. The component that, when connected, causes tripping is likely faulty.
- Replace faulty part: Replace the MSPA heater, pump, blower, or power cord as identified. If unsure, contact a qualified technician.
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Repair Difficulty
Professional Required
5/5
Required Part
MSPA Heater Assembly
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