TM 9-4120-370-14
TO 35E9-229-1
5-20. COMPRESSOR (B1) - Continued.
Figure 5-23. Compressor (B1), Motor Protector (S4), Heater (HR7), and Thermostat (S8) Test
(e) Check continuity between J11 contacts A and B. If there is no continuity and wires are properly con-
nected, the motor protector (internal thermostat) is open. Replace the compressor.
(f) Check continuity between J11 contacts A, B, D, E, and F and compressor canister. If wires are proper-
ly connected and there is continuity indicated, there is an internal short. Replace the compressor.
(g) Check continuity between J11 contacts G and H. If there is continuity between these pins, both the
heater element and thermostat are all right. If there is no continuity between the pins, bare the splice
between the heater lead and thermostat lead, and separately check for continuity between pin G and
the splice, and pin H, and the splice. If there is continuity between pin G and splice, but not between
pin H and the splice, the heater element is all right and the thermostat is bad. If there is continuity
between pin H and the splice, but not between pin G and the splice, the thermostat is all right and the
heater element is bad. If there is no continuity between either pin and the splice, both the element and
the thermostat are bad.
b.
Connector (J11) replacement. (Refrigerant system discharge is not required.)
(1) Assuming that the power has been disconnected at the power source, and covers have been removed
during access and testing.
(2) Remove the retaining hardware from the connector. Pull the connector out of the box to gain access to the
(4) Using tags and wiring diagram (Figure 420), solder wires to new connector. Remove the tags.
(5) Secure the connector to the compressor junction box with four screws, lock washers, and nuts.
Heater (HR7) replacement. (Refrigerant system discharge is not required.) (Sub paragraphs (2), (3), (4), (5),
c.
and (7) (a), (b), and (c) apply to F36T42S, F36T42SA, F36T2S, and F36T42SB only.)
(1) Check to see that the power has been disconnected at the power source and covers have been removed
during access and testing.