SPRSUN
Overcurrent / Short Circuit
Unit trips the house breaker when starting or during operation.
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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 compressor or fan motor, Damaged wiring insulation, Incorrect breaker size or type, Faulty inverter or control board
How to Fix / Troubleshooting
Safety first: Do not repeatedly reset a breaker that trips immediately; this can be dangerous. Turn off the breaker and leave the unit off until inspected.
- Visual inspection: With power off, open the electrical compartment and look for obvious shorts, such as melted wires touching the cabinet.
- Check wiring routing: Ensure wires are not pinched by panels or rubbing against sharp metal edges.
- Confirm breaker rating: Verify that the breaker size matches the SPRSUN nameplate requirements.
- Professional testing: A technician should measure insulation resistance of the compressor and motors, and test the inverter and control board for internal shorts.
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Repair Difficulty
Professional Required
5/5
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