Mitsubishi Error Code 2: Power Supply Phase Error

LED Blink Pattern

How to Fix Mitsubishi Code 2

1. Check if other appliances in your home are affected by the power issue. If not, the problem might be with your HVAC unit.
2. Contact a licensed HVAC technician to diagnose and repair the issue. Do not attempt to repair it yourself.

How to Reset Mitsubishi Code 2

1. Turn off the unit using the remote control or wall controller.
2. Turn off the circuit breaker for the outdoor and indoor units. Wait 60 seconds.
3. Restore power at the breaker.
4. Turn the unit on with the remote control. If the error returns, the fault needs professional diagnosis.

Resetting clears the code from the display but does not fix the underlying fault. If the code returns after reset, proceed to the diagnostic steps above.

What Does Mitsubishi Error Code 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.

Common Causes

• Voltage fluctuation in the incoming power supply
• Phase issue in the power supply
• Faulty power supply within the HVAC unit

Diagnostic Steps

Replacement Parts

Related Codes on Same Models

Other codes that affect the same Mitsubishi model families as 2.