Mitsubishi Electric SLH Series Technical & Service Manual page 67

OPERATING PROCEDURE
9. Removing the drain pump and drain sensor
(1) Remove the panel. (See photo 2)
(2) Remove the drain pan.(See photo 4)
(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.(See photo 2)
(2) Remove the drain pan.(See photo 4)
(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 connectors of the (fan 1) and the (fan 2)
from the indoor controller board.
(6) Remove the 3 screws fixed to the piping cover, and
remove the piping cover. (See photo 9)
(7) Remove the drain indoor coil thermistor.(See photo 5)
(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
Screws of
piping cover
Coil
screws
Piping cover
Photo 10
Coil screws
67
Cover
Screw
Drain sensor Drain pump
Fixing band
Control box
Lead wires Control box
Heat exchanger
Lead wires
Screws
Coil
screws
Coil
support
Coil
support
Screw