Blower/Evaporator Unit Component Replacement
Note these items when overhauling the blower/evaporator unit:
- The recirculation control motor (A), the power transistor (B), and the blower motor (C) can be replaced without removing the blower/evaporator unit.
- If you're installing a new evaporator core (D), add refrigerant oil (SP-10) (see A/C REFRIGERANT OIL REPLACEMENT ).
- Replace the O-rings with new ones at each fitting and apply a thin coat of refrigerant oil before installing them. Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage.
- Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
- Reinstall the evaporator temperature sensor (E) in its original location.
- Before reassembly, make sure that the recirculation control linkage and doors move smoothly.
- After reassembly, make sure the recirculation control motor runs smoothly (see RECIRCULATION CONTROL MOTOR CIRCUIT TROUBLESHOOTING ).
- Make sure no air is leaking from the upper housing (F) the lower housing (G).