DIRECT SUPPORT MAINTENANCE
AIR CONDITIONER, HORIZONTAL, COMPACT
HIGH PRESSURE SWITCH S4 INSPECTION, TESTING, AND REPLACEMENT
Remove junction box (WP 0036 00)
Refrigeration Unit Service Tool Kit, WP 0000 00, Item
Remove top panels (WP 0061 00)
High Pressure Switch
Lock Washers (3)
Inspect the pressure switch (1) and capillary line for visible signs of damage. Replace if damaged.
Press the reset button on the switch (1). Check for continuity between terminals 1 and 2. If there is continuity, the
switch is properly closed. If no continuity is found, press and release the reset button again. If there is still no
continuity, the switch must be replaced.