Carrier VECTOR 6500 Operation & Service Manual page 216

Alarm
Steps
NO.
P175 CHECK HIGH SPEED RPM - Continued
6 Check engine air-intake system
a. Check air cleaner indicator.
b. Inspect air intake system.
7 Check engine exhaust system
Inspect the exhaust system.
Alarm/Cause
7−83
Corrective Action
Flag must not be visible.
Hoses & tubes in good condition.
No kinks or restrictions.
Must be clear and unobstructed.
62-11389