Mitsubishi Error Code 2: Power Supply Phase Error
Warning: Your Mitsubishi HVAC system has detected a power supply phase error. It's safe to use, but needs professional attention.
How to Fix Mitsubishi Code 2
- Check if other appliances in your home are affected by the power issue. If not, the problem might be with your HVAC unit.
- Contact a licensed HVAC technician to diagnose and repair the issue. Do not attempt to repair it yourself.
How to Reset Mitsubishi Code 2
- Turn off the unit using the remote control or wall controller.
- Turn off the circuit breaker for the outdoor and indoor units. Wait 60 seconds.
- Restore power at the breaker.
- Turn the unit on with the remote control. If the error returns, the fault needs professional diagnosis.
What does 2 mean?
A Power Supply Phase Error (Error Code 2) on your Mitsubishi HVAC system indicates that the unit has detected an issue with the incoming power supply. This could be due to a voltage fluctuation, a phase issue, or a problem with the power supply itself. The system is designed to protect itself from potential damage by displaying this error and shutting down certain functions. It's important to have this checked by a professional to ensure safe and efficient operation of your HVAC system.
Affected Models
Replacement Parts
| Part | OEM Number | Est. Cost |
|---|---|---|
| Power Supply Board | — | — |
Related Codes on Same Models
| Code | Description | Severity |
|---|---|---|
| 1 | Indoor/Outdoor Mismatch | Warning |
| 3 | Communication Error | Warning |
| 4 | Inverter Error | Warning |
| 5 | Outdoor Thermistor Open/Short | Warning |
| 6 | Indoor Freeze/Overheat | Warning |
| 7 | Outdoor Freeze/Overheat | Warning |
| E6 | Indoor/Outdoor Communication Error | Warning |
| E9 | Indoor/Outdoor Communication Fault | Warning |
| P1 | Intake Sensor Error | Warning |
| P2 | Indoor Pipe Thermistor Error | Warning |