Mitsubishi Electric Mini-Splits & Ductless Systems

20 known error codes

6607 Moderate

Indoor Fan Motor Lock

6801 Moderate

Communication Error (Wired Controller)

E0 Easy Fix

Remote Controller Signal Receiving Error

E6 Moderate

Indoor/Outdoor Communication Error

E7 Moderate

Outdoor Unit Communication Error

E9 Moderate

Serial Communication Error (Expansion Valve)

Fb Moderate

Outdoor Control Board Fault

P1 Easy Fix

Intake Air Temperature Sensor Fault

P2 Easy Fix

Pipe Temperature Sensor (Condenser) Fault

P4 Easy Fix

Drain Sensor Fault

P5 Moderate

Drain Pump Fault

P6 Moderate

Freeze / Overheat Protection

P8 Moderate

Pipe Temperature Abnormality

P9 Moderate

Pipe Temperature Sensor 2 Fault

PA Moderate

Compressor Overcurrent (CT Error)

U1 Moderate

High Pressure Trip

U2 Moderate

Low Voltage / High Current Abnormality

U3 Moderate

Open / Short Circuit Sensor Detection

U4 Easy Fix

Outdoor Thermistor Fault

U5 Moderate

Condenser Temperature Abnormal