MISCELLANEOUS CABLES, HARNESSES, AND TERMINAL BOARDS.

TM5-4120-384-14

4 - 3 0 . MISCELLANEOUS CABLES, HARNESSES, AND TERMINAL BOARDS.

Disconnect input power from the air conditioner before

performing maintenance on any part of the electrical

system.

The voltages used can be lethal.

Inspect/Test.

(See

fig.

4-26.)

(1)

D i s c o n n e c t power

power

source.

( 2 ) R e m o v e t o p rear cover on F18H-3S and F18H-1S or top cover

on F18H-3SA and F18H-3SB (para 4-11) for access to compressor and

auxiliary power input cables.

(3) For full

access

terminal

blocks

TB2

and

TB3

necessary to:

(a) Remove top front cover and top center cover on F18H-3S

and F18H-1S or top cover on F18H-3SA and F18H-3SB (para 4-11).

(b)

Remove

junction

box

and

control

module

(para

4-21

and

4-26).

(4) Check terminals

terminal

boards

that

they

are

tight

and

free of corrosion.

(5) Disconnect

connectors

and

check

for

loose,

damaged,

missing pins.

(6) Check individual wires for loose solder

connections,

cut

frayed insulation and cut or broken wires.

(7) See wiring diagram (fig. 4-4) and continuity test

individual wires.

Repair or replace wires with no continuity.

Repair.

(1)

See

paragraph

4-20

for

general

wire

repair

instructions.

(2) See table 4-3 Wire List for wire lengths

and

terminal

information when individual wires are replaced.

4-85

Change 2