Mazda RX-8 Workshop Manual page 2537

Turn ignition switch to ON
position.
Turn fan switch on.
Recirculate air inside vehicle.
Does fan in blower unit rotate
smoothly?
3 INSPECT BLOWER UNIT
Inspect fan in blower unit.
Is fan normal?
4 INSPECT BLOWER UNIT INTAKE VENT
Is blower unit intake vent
clogged?
5 VERIFY THAT MALFUNCTION SYMPTOM
OCCURS AFTER REPAIR
Does air blow out?
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Is fan free of
interference
from blower
unit case?
Is fan free of
foreign
material and
obstructions?
© 2010 Mazda North American Operations, U.S.A.
No Go to next step.
YesGo to next step.
No Remove obstruction, repair or replace fan and
blower unit case, then go to Step 5.
YesRemove obstruction, then go to next step.
No Inspect if there are any obstructions in passage
between blower unit and A/C unit, then go to next
step.
YesTroubleshooting completed.
Explain repairs to customer.
No Recheck malfunction symptoms, then repeat from
Step 1 if malfunction recurs.
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