Section 22: HEATING AND AIR CONDITIONING
PA1593
9
FIGURE 15: DRIVER'S SECTION AIR FILTERS 22171
4.3 PASSENGERS’ SECTION AIR FILTER
The passengers’ section air filter is located in
the evaporator compartment. To access the
filter, open baggage compartment door located
forward of the evaporator compartment (L.H.
side). Open access panel by turning the three
screws of panel ¼ of a turn, unsnap both
fasteners on top of filter, and slide out filter
(Fig. 16).
MAINTENANCE
Back flush filter with water or soapy water,
then dry with air every 12,500 miles (20 000
km) or once a year, whichever comes first.
FIGURE 16: PASSENGERS' SECTION AIR FILTER 22306
=
CAUTION
Do not use high pressure water jet to avoid
damaging filter. Be sure not to reverse filter
upon installation.
4.4 OVERHEAD COMPARTMENT FAN AIR
FILTER
The air filters are accessible from inside the
overhead compartments.
MAINTENANCE
Slide out filters, back flush with water then dry
with air and replace. This procedure should
be done every 12,500 miles (20,000 km) or
once a year, whichever come first.
FIGURE 17: OVERHEAD COMPARTMENT FAN AIR
FILTER
22201
5. HVAC SYSTEM PARTICULARITIES,
TESTING AND TROUBLESHOOTING
Before undertaking any troubleshooting on the
HVAC system, study the appropriate wiring
diagrams to get a complete understanding of the
HVAC components circuitry, read and
understand section 06: ELECTRICAL of this
manual under "Troubleshooting And Testing The
Multiplex Vehicles" and "Test Mode For
Switches And Sensors". The information
included in these paragraphs is necessary for
troubleshooting the HVAC system on Multiplex
vehicles.
5.1 HVAC SYSTEM AND TEST MODE FOR
SWITCHES AND SENSORS
When in switch/sensor test mode (see Section
06: ELECTRICAL for complete information), the
A/C compressor HI and LO pressure values are
displayed one after the other instead of the
outside temperature in the telltale panel LCD
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