Evaporator Temperature Sensor / Switch: Testing and Inspection

A/C Thermostat Test:

- Dip the A/C thermostat into a pan filled with ice water, and check for continuity between the terminals.

Cut off: 35-31 °F (1 .5--O.5°C)
Cut in: 36-41 °F (2.5-5°C)

- If cut off or cut in temperature is too low or too high, replace the A/C thermostat.