Evaporator Temperature Sensor / Switch: Testing and Inspection

Defrost Nozzle Temperature Check:

Main Air Flap Vacuum Element And ETR Switch:

CUTOUT TEST
1. Insert thermometer into center nozzle.
2. Push blower switch (h) 1st stage and push-button "c" and run engine at approx. 2000 rpm.
3. After 3rd cutout of compressor clutch, the outlet temperature should be approx. +4°C (39°F) but not less than +3°C (37°F).
- If cooling capacity is insufficient or outlet temperature is below +3°C (37°F), check capillary tube of ETR switch (29) for correct assembly (slit into guide tube up to red mark) or replace ETR.