Mitsubishi HVAC Unit TPKA0A0121HA70A

Remove the front panel and the corner box at right lower side

Electrical Box and Nozzle Assembly Removal

Remove the screws fixing the motor bed

Loosen the screw fixing the line flow fan

Remove the motor bed together with fan motor and motor band

Front Panel and Thermistor Removal

Remove the room temperature thermistor TH1

Electrical Box and Indoor Controller Board

Remove the electrical box covers (screw 4 × 12)

Disconnect the connectors on the indoor controller board

Pull out the indoor controller board and disconnect the rest of connectors

Remove the indoor controller board and switch board

Press and unlock the knobs on both sides of the front panel

Lift the front panel until it is level

Pull the hinges forward to remove the front panel

Move the horizontal vanes in a downward direction

Remove the screw caps of the panel

Hold the lower part of both ends of the panel and pull it slightly toward you

Remove the panel by pushing it upward

Remove the electrical box cover

Disconnect the vane motor connector (CN151) on the indoor controller board

Pull the nozzle assembly and detach

Push the fixture and remove the drain hose

Panel and Electrical Box Removal

Remove the front panel and the corner panel at right lower side

Remove the electrical box and the nozzle assembly

Disconnect the connector (CN60) on the indoor controller board and the connector for ground wire

Remove the screws fixing the left side of the heat exchanger