A/C-Heater System Deodorizing

 WARNING: AVOID CONTACT WITH EYES AND SKIN. CONTACT WITH EYES AND SKIN WILL CAUSE IRRITATION. WEAR SAFETY GLASSES WHEN USING.

 WARNING: THIS PROCEDURE SHOULD ONLY BE PERFORMED IN WELL-VENTILATED AREAS. OPEN ALL WINDOWS AND DOORS OF THE VEHICLE. LEAVE DOORS AND WINDOWS OPEN DURING THE ENTIRE PROCEDURE. AVOID BREATHING VAPORS.

Musty and mildew-type odors may come from the air conditioner and heater system. This odor is caused by mildew-type fungi growth in the A/C evaporator core (19860) . It is most noticeable when the A/C is first turned ON. A deodorizer which encapsulates the mildew is available to reduce these odors.

Apply the Walex A/C deodorizer product or equivalent to the A/C system as directed in the following service procedure.

 WARNING: AVOID FLAMES, SPARKS OR LIT TOBACCO PRODUCTS. THIS PRODUCT IS COMBUSTIBLE.

 WARNING: READ ALL INSTRUCTIONS AND WARNINGS PACKAGED WITH THE DEODORIZER.

1. Set the A/C system control to the NORM A/C position. On vehicles equipped with a manually operated fresh air/recirculate air door, set the door to the fresh air position.

2. With the heater blower motor (18527) operating in high speed, spray 3 ounces of the deodorizer product into the fresh air inlet.

3. Set the A/C system control to the MAX A/C position (if equipped) or to the A/C position if MAX A/C is not available on the control. Position the temperature knob or set the digital display to the coldest setting available. (On vehicles equipped with a manually-operated fresh air/recirculate air door, set the door to the recirculate position.)

4. With the heater blower motor operating in high speed, proceed as follows:
   1. Spray 1-1/2 oz of the deodorizer product into the recirculate air opening (located in the passenger side foot area of the vehicle).
   2. Set the temperature control to provide full heat.
   3. Spray an additional 1-1/2 oz of the deodorizer product into the recirculate air opening.

5. Shut the heater blower motor OFF.

6. Spray equal amounts of the remaining 4 oz of the deodorizer product into each of the air outlet openings (defroster, instrument panel A/C registers (19893) and heater outlet floor ducts (18C433) ).

7. Allow the vehicle to sit for about 30 minutes before returning it to the customer.

   Test equipment must be connected to the refrigerant system in order to make system tests. If a charging station is used, follow the instructions of the station manufacturer.