Evaporator Temperature Sensor / Switch: Testing and Inspection

A/C THERMOSTAT TEST
- Dip the thermostat capillary tube into a pan filled with ice water, and check for continuity.

Cutoff 1.5 - 0.5°C (35 - 33°F)
Cutin 2.5 - 5.0°C (37 - 41°F)

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