2000 LS2 Blower

My A/C Heater blower started working intermittently. Only the first 3 fan
speeds now work. When it works the first 3 speeds work well. I was told it
might be the resistor card so I just completed putting a new one in and the
same problem exist. Any help would be appreciated. Thanks, Robert.

 

Has the dash switch itself gone bad? I assume that you have checked the
fuses as well. We had a similar problem on our SL2, it was a faulty dash
switch.

 

The fuses are fine. When this first happened the a/c/ was on max and
working fine. When the car was restarted in this state a few minutes later,
no blower. It makes me wonder if it is the switch but I am not sure how to
get the switch out yet to look at it.

 

I had a fault in the blower motor that caused a high current. The fuse did
not blow but the heat caused damage to the fan speed switch and intermittent
operation. Also burned a couple of connections in the harness behind the
radio ('01Lw300). The harness wasn't anything that had to be disconnected so
I cut the wires out of the harness one at a time and soldered them together
directly.
Oppie

 

Thanks Oppie. I took the switch out and by disconnecting and reconnecting
the wires I could make the blower work except for speed 4. I will replace
the switch. I assume it is the whole component that is replaced and not an
internal swithc. Thanks for your help. Robert.

 

I was a bit bummed out to have to buy a entire hvac panel when all I needed
was the fan switch - somewhere about $150 as I recall :-( To make matters
worse, the new panel tried to put the A/C on when the mode switch was in
floor heat position. I was going to troubleshoot it and never got arround to
it. I did the repair in the summer when floor heat was not needed and didn't
realize the problem for several months - too late to get an exchange...