Panasonic CS-KS12NB41 & CZ-18BT1U + CU-KS12NK1A Technical & Service Manual page 47

7-3-9. Remove the turbo fan and fan motor.
(1) Remove a nut and remove the turbo fan. (Fig. 22)
(2) Remove the 2 screws and 3 nuts, and remove the fan motor. (Fig. 23)
7-3-10. Remove the heat exchanger.
(1) Remove the 3 screws. (Fig. 24)
(2) Remove the 3 screws. (Fig. 25)
(3) Remove the heat exchanger from the main body upper section with the heat exchanger lifted.
Turbo fan
Nut
Fig.22
Fig.24
Screw
Heat exchanger
Screw
47
Nut
Fan motor
Fig.23
Screw
Fig.25
Main body
upper section
Screw