Takagi
Electrical Overload or Ground Fault
Takagi water heater frequently trips the household breaker or GFCI.
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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 internal component (fan, pump, PCB), Water intrusion into electrical compartment, Incorrect circuit sizing, Faulty GFCI outlet
How to Fix / Troubleshooting
Safety first: Repeated breaker tripping indicates a potentially dangerous electrical fault. Do not repeatedly reset without investigation.
Steps:
- 1. Inspect for moisture: Turn OFF power and remove the cover. Look for signs of water leaks or condensation near electrical components. Repair leaks before proceeding.
- 2. Visual check of wiring: Look for burnt, pinched, or loose wires. Do not touch bare conductors.
- 3. Circuit sizing: Confirm that the heater is on a dedicated circuit of the correct amperage as specified by Takagi.
- 4. Professional diagnosis: A technician should test individual components (fan, pump, PCB) for shorts and replace any defective parts.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
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