Subaru 1600 Service Manual page 585

HEATING, VENTILATING AND AIR-CONDITIONING SYSTEM
3) Air Leakage into the Compartment
No. Cause Check point
Corrective action
1. Air leakage at the passenger side.
1. Check sealing of shutter at blower 1. Repair
assembly.
2. If air leakage occures at CIRC posi- 2. Connection or Replace
tion, it is due to disconnection or
break of intake shutter return
spring.
3. Repair
3. If air leakage occurs at positions
except CIRC of mode lever, it is
due to faulty of vacuum control
system.
4. Check connection of heater duct 4. Connection
and blower assembly or heater unit
without fail.
2. Air leakage at the driver side Check the control system according Adjustment
to "On-car Services".
3. Air leakage from center air Check the control system according Adjustment
outlet to "On-car Services".
13-40