SPONSORED LINKS

HVAC blower motor works on all settings but HIGH

Tiny
DIY'ER
  • MEMBER
  • PONTIAC BONNEVILLE
1994 Pontiac Bonneville SE, 231K, w/ manual HVAC.
The blower motor works on LOW, M1, & M2, but not at all on when switched to HIGH. I know that 1-3 use or bypass the resistors depending on the setting and HIGH should bypass all of the resistors. If the relay is bad does 1-3 still work?
SPONSORED LINKS
Monday, December 18th, 2006 AT 12:14 AM

2 Replies

Tiny
GARFIELD
  • MECHANIC
  • 197 POSTS
I would check the blower switch to ensure that the contracts for the high position are closing. I am pretty sure that it is not the relay since it is working in every setting but high.
Was this
answer
helpful?
Yes
No
Monday, December 18th, 2006 AT 5:25 AM
Tiny
DIY'ER
  • MEMBER
  • 2 POSTS
Thats what I originally thought; so I swapped out just the switch (that the knob slides on), same results. I failed to mention that in my original post, sorry. Are you talking about a different swith?
Another detail I failed to metion is that I replaced the blower motor itself this year, with a brand new blower motor from GM.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
-1
Monday, December 18th, 2006 AT 8:33 PM

Please login or register to post a reply.

Related Blower Fan Resistor Content

VIEW MORE

Sponsored links