CONTROL MODULE COMPONENTS

TM 5-4120-369-14

4-28.

CONTROL MODULE COMPONENTS - Continued.

(3) Evaporator fan switch (S-2).

Check for loose connections, loose control knob and cracked or

(a) Testing

broken casing. Check for continuity with a multimeter.

If no continuity exists with switch in either one of the four "ON" positions or if the casing is

broken or cracked, replace the mode selector switch. If knob is loose, tighten set screw. If

knob is defective, replace.

(b) Removal.

(1) Remove control module per paragraph 4-27

(2) Refer to figure 4-11 and remove the evaporator fan speed switch.

(1) Refer to figure 4-11 and install the evaporator fan speed switch.

(2) Refer to para 4-27 and install the control module.

(4) Temperature Control Switch (S-3)

Check for loose connections, loose control knob and cracked or

(a) Testing

broken casing. Check for continuity with a multimeter.

If no continuity exists or if the casing is broken or cracked, replace the temperature control

switch . If knob is loose, tighten set `screw. If knob is defective, replace.

Removal.

(b)

(1) Remove control module per paragraph 4-27

(2) Refer to figure 4-12 and remove the temperature control switch.

Installation.

(c)

(1) Refer to figure 4-12 and install the temperature control switch.

(2) Refer to para 4-27 and install the control module.

4-26