Mitsubishi Electric Mr.SLIM SLZ-KA25VA Technical & Service Manual page 29

OPERATING PROCEDURE
9. Removing the drain pump (DP) and drain sensor (DS)
(1) Remove the panel. (Refer to 3 )
(2) Remove the drain pan. (Refer to 6)
(3) Remove the 2 screws fixed to the control box cover, and
remove the control box cover.
(4) Remove the connectors of the (CNP) and the (CN31)
from the indoor controller board.
(5) Remove the 1 screw fixed to the cover, and remove the
cover.
(6) Disconnect the lead wires to the direction of the drain
pump.(See photo 7)
(7) Remove the 3 screws of the drain pump.
(8) Cut the drain hose band, pull out the drain hose from the
drain pump.
(9) Pull out the drain pump.
(10) Remove the drain sensor and the holder.
10. Removing the heat exchanger
(1) Remove the panel. (Refer to 3 )
(2) Remove the drain pan. (Refer to 6)
(3) Remove the nut and the washer from the turbo fan, and
remove the turbo fan.
(4) Remove the 2 screws fixed to the control box cover, and
remove the control box cover.
(5) Disconnect the connector of the (fan) from the indoor con-
troller board.
(6) Remove the 3 screws fixed to the piping cover, and
remove the piping cover. (See photo 9)
(7) Remove the pipe temperature thermistor/liquid and
condenser/evaporator temperature thermistor. (Refer to 7)
(8) Disconnect the lead wires to the direction of the fan motor.
(9) Remove the 1 coil support screw, the 2 inside coil screws
(See photo 10), and the 4 outside coil screws (See photo 9)
from the heat exchanger, and remove the heat exchanger.
PHOTOS&ILLUSTRATIONS
Photo 7
Control
box
Photo 8
Drain
hose
Screw
Photo 9
Coil
screws
Piping cover
Photo 10
Coil screws
29
Cover
Screw
Drain sensor (DS) Drain pump (DP)
Fixing band
Screws of
piping cover
Lead wires
Heat exchanger
Lead wires
Screws
Control box
Coil
screws
Control box
Coil
support
Coil
support
Screw