Climate Control panel not turning on blower fans

STEVEPOONS

MEMBER
1998 LINCOLN MARK VIII
210,000 MILES

My climate control will not turn on the fans when the system should be running. This used to be an intermediate issue that would only happen every once in a while and turn on and off unexpectedly, but now they won't turn on at all.

The climate control is on and set to auto, but it still won't blow any air. Even if I change it to manual and turn the fan speed up, it still doesn't respond.

What are my first steps for troubleshooting this issue?

1 Reply

HMAC300

MECHANIC
48,601 POSTS

Do this for codes and get back with us
Ensure in-car temperature is between 40-90°F (4-32°C). Simultaneously depress OFF and FLOOR buttons, then press AUTO button within 2 seconds. Display will show a dashed line in center of display window for up to 30 seconds while test is running. Record all DTCs as displayed.
If DTCs are displayed, perform test indicated. See SELF-DIAGNOSTIC TEST CODE DIRECTORY table. If no DTCs are displayed, go to SYMPTOM DIAGNOSIS. If a condition exists but no DTCs are noted, go to SYMPTOM DIAGNOSIS.
Self-diagnostics can be initiated at any time with the resulting DTCs being displayed. Normal system operation is stopped when system is in self-diagnostic mode