TM 9-4120-388-14
b. Heater Replacement
This task covers:
a. lnspection/Test
d. Heater Thermostat Replacement
c. Connector Replacement
f. Compressor Motor Burn Out
e. Compressor Installation
g. Compressor Installation
INITIAL SETUP:
Equipment Condition
Junction box removed (4-46).
Side access cover removed (4-22).
NOTE
The compressor and motor assembly are hermetically sealed in a metal canister and are
not repairable. The following items may be replaced without opening the refrigerant pres-
sure system:
1.
Connector (J4)
2.
Heater
Heater thermostat
3.
lnspection/Test
a.
(1) Be sure power has been disconnected from air conditioner.
(2) Electrically test the heater element, heater thermostat, wiring harness, and motor as follows.
(3) Disconnect wiring harness at connectors P4 and J4 (located on the compressor junction box).