Mitsubishi HVAC Unit MUY-GE09NA2

Remove the screw fixing the service panel

Pull down the service panel and remove it

Remove the screws fixing the conduit cover

Disconnect the power supply wire and indoor/outdoor connecting wire

Disconnect the lead wire to the reactor and the following connectors on the Inverter P.C. board

Pull out the discharge temperature thermistor from its holder

Pull out the defrost thermistor from its holder

Pull out the outdoor heat exchanger temperature thermistor from its holder

Pull out the ambient temperature thermistor from its holder

Recover gas from the refrigerant circuit

Recover gas from the pipes until the pressure gauge shows 0 PSIG

Detach the brazed part of the suction and the discharge pipes connected with compressor

Detach the brazed part of the pipes connected with 4-way valve

Disconnect the lead wire to the reactor

Disconnect connectors from Inverter P.C. board

Remove the compressor connector (CN61)

Remove screws fixing the heat sink support and the separator

Remove fixing screws of the terminal block support and the back panel

Remove the screw of the ground wire and screw of the terminal block support

Remove the heat sink support from the P.C. board support

Refer to 1 for detailed instructions

Disconnect CN721 (R.V. coil) from Inverter P.C. board