4-38. HIGH TEMPERATURE CUTOUT SWITCH
This task covers:
Tool kit, refrigeration SVC
General Safty Instructions
Thermostat terminal box cover removed
Voltages used can kill. Always disconnect power
cord to air conditioner before performing any
internal maintenance, Shutting unit off at its
control panel does not disconnect unit power.
Upon sensing a temperature exceeding 155 F, S4 opens, de-energizing the air conditioner as described
in paragraph 1-13. When the temperature sensed by the HTCO drops to 125 F, the cutout closes, restoring
circuit continuity. Air conditioner reset is as described in paragraph 1-13.
(1) Disconnect high temperature cutout switch wires from TB3.
(2) Check for continuity.
(3) If continuity is not present, replace defective high temperature cutout switch.
(1) Remove two screws (1), Iockwashers (2), and nuts (3) holding high temperature cutout switch (4) to bracket
(2) Remove high temperature cutout switch (4).