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Re: HVAC dead - 1986 L7 (archive)
[ Follow Ups ] [ 7-series (E23) Message Board ] [ Msg. Board FAQ ]
Posted by Randy on April 08, 2001 at 11:25:25:

In Reply to: Re: HVAC dead - 1986 L7 posted by Jens on April 07, 2001 at 22:33:02:

Hi Jens,

I swapped the resister boards. No effect. The voltage at the boards were 12.25 on the gr/br & bl/wh at all pushbutton settings and fan speeds, even off. The yellow wire read .07 all times except when defroster was depressed.

I swapped the relays on the blower with ones in the fuse box. I also swapped the relays (K5) with another one in the fuse box.

Looking more like a bad pushbutton board?

Thanks,
Randy



Have you cheked your resister boards,
underneath your blower covers?

Jens




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