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TM 9-4120-428-14
UNIT MAINTENANCE
AIR CONDITIONER, HORIZONTAL, COMPACT
(NSN 4120-01-502-1319)
HEATER THERMOSTAT S6 REMOVAL, INSPECTION, TESTING, REPLACEMENT, AND INSTALLATION
INITIAL SETUP:
Equipment Condition
Tools
Remove Top Front Panel (WP 0019 00)
Refrigeration Unit Service Tool Kit, WP 0000 00, Item
1
Materials/Parts
Heater Thermostat
Lock Washers (2)
1
2
4
3
1
THERMOSTATIC
SWITCH
DIAGRAM
4
5
2
3
REMOVAL
1. Remove two screws (1) and slip the heater thermostat (2) and the bracket (3) forward.
2. Remove two screws (4) and lock washers (5) and pull the thermostat (2) from the bracket (3).
3. Tag and disconnect all wire leads.
INSPECTION
Inspect part for cracks, loose connections, and obvious damage. Replace if defective.
TESTING
1. Check continuity on terminals 1 and 2 of the thermostat. Continuity should be indicated.
2. Check continuity on terminals 3 and 4. Continuity should be indicated.
REPLACEMENT
Replace the heater thermostat if defective.
0051 00-1
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