Checking Intake Air Flow

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Move heater to service position according to Moving the Heater To Its Service Position .
Check that the air flow through the heater is free, that the air intake and exhaust are not blocked.

Remedy as necessary.

Fig 1: Identifying Air Flow Through Heater
Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected?

YES
Refer to Verification
NO
Refer to Checking Flame Sensor