Mazda RX-8 Manual page 1707

NO.6 AIR FROM VENTS COLD ENOUGH
6 Air from vents not cold enough.
DESCRIPTION
POSSIBLE
CAUSE
Diagnostic procedure
STEP INSPECTION
INSPECT DRIVE BELT
Inspect drive belt.
•
1
(See DRIVE BELT
DEFLECTION/TENSION INSPECTION )
Is it normal?
•
INSPECT REFRIGERANT SYSTEM
PERFORMANCE
Perform refrigerant system performance
•
test.
2
(See REFRIGERANT SYSTEM
PERFORMANCE TEST )
Is operation normal?
•
3
Magnetic clutch operates but A/C system malfunctions.
•
Drive belt malfunction (Step 2)
•
Malfunction in blower unit or condenser (Steps 4, 5)
•
Malfunction in receiver/drier or expansion valve (valve closes too much) (Steps 8,
•
9)
Malfunction in refrigerant lines (Steps 10, 11)
•
A/C compressor system malfunction, insufficient compressor oil (Steps 15, 16)
•
Over filling of compressor oil, malfunction in expansion valve or A/C unit air mix
•
link system (Steps 1719)
ACTION
Yes Go to next step.
Adjust or replace drive belt, then go to Step
No
20.
Operation is normal. (Recheck malfunction
Yes
symptoms.)
No Go to next step.
Yes Go to next step.
(w) RX-8 - HVAC
Page 78