Viessmann
Excessive Inrush Current / Electrical Overload
Unit frequently trips the circuit breaker when starting
Advertisements
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.
Advertisements
Possible Causes
Shorted compressor or fan motor, Incorrect breaker size, Faulty inverter module, Short circuit in wiring
How to Fix / Troubleshooting
Safety: Do not repeatedly reset a tripping breaker; this is a fire risk. Turn off power and investigate.
- Verify breaker rating: Confirm the breaker size matches Viessmann installation guidelines.
- Inspect wiring: Look for obvious shorts, burnt insulation, or water ingress in junction boxes.
- Isolate components (technician): A technician can disconnect motors one by one to identify the faulty component.
Advertisements
Repair Difficulty
Professional Required
5/5
Advertisements