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NO.6 INSUFFICIENT AIR (OR NO AIR) BLOWS FROM REAR VENTS

BME070301038208

6 | Insufficient air (or no air) blows from rear vents.
DESCRIPTION | • Problem with each vent and/or each duct.
POSSIBLE CAUSE | • Malfunction in VENT mode system • Malfunction in HEAT mode system

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | VERIFY WHETHER MALFUNCTION IS IN VENT MODE OR HEAT MODE • Does air blow out in VENT mode? | Yes | Go to Step 4.
No | Go to next step.
2 | INSPECT VENT • Is vent clogged? | Yes | Remove obstruction, then go to Step 7.
No | Go to next step.
3 | VERIFY THAT ROOF DUCT IS INSTALLED • Are rear cooler duct No.1 and No.2 properly installed? | Yes | Check rear cooler duct No.1 and No.2 for clogging, deformation, and air leakage, then go to Step 7.
No | Install rear cooler duct No.1 and No.2 securely in the proper position, then go to Step 7.
4 | INSPECT HEAT MODE • Does air blow out in HEAT mode? | Yes | Operation is okay. Recheck malfunction symptoms.
No | Go to next step.
5 | INSPECT VENT • Is vent clogged? | Yes | Remove obstruction, then go to Step 7.
No | Go to next step.
6 | VERIFY THAT HEAT DUCT IS INSTALLED • Are rear heat duct No.4 and No.5 properly installed? | Yes | Check rear heat duct No.4 and No.5 for clogging, deformation, and air leakage, then go to next step.
No | Install rear heat duct No.4 and No.5 securely in the proper position, then go to next step.
7 | VERIFY THAT MALFUNCTION SYMPTOM OCCURS AFTER REPAIR • Does air blow out? | Yes | Troubleshooting completed. Explain repairs to customer.
No | Recheck malfunction symptoms, then repeat from Step 1 if malfunction recurs.