Evaporator Core: Service and Repair

NOTE: The following procedure was compiled from field experience.

Removal
1. Remove evaporator housing. Service and Repair
2. Remove expansion valve and plug fitting ends.
3. Remove evaporator temperature regulator (ETR) mounting screws and carefully remove ETR switch with capillary making sure to apply counterhold to guide tube.

CAUTION: If special care is not taken when removing ETR capillary damage to evaporator core and/or capillary may occur.

Evaporator Housing Half Clips:

Evaporator Housing With Evaporator Removed:

4. Remove clamps (6) between evaporator housing bottom and center section.
5. Take off evaporator housing lower half (3) and remove evaporator.


Installation
1. Clean evaporator housing, paying attention to perfect passage of condensate drain connection.
2. Insert new evaporator (7) into evaporator housing, paying attention to evaporator ribs.
3. Reinstall evaporator housing lower half (3) and secure clamps.
4. Close passage for evaporator pipes on evaporator housing center section (2) with sealing tape.
5. Slip capillary of ETR switch up to red mark into guide tube in evaporator housing.
6. Install evaporator housing.