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No real way to test, that I know of
Posted by David Ingram (more from David Ingram) on Fri, 14 Dec 2007 16:43:54
In Reply to: Testing Blower Motor System, Judd, Fri, 14 Dec 2007 14:50:50
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Your symptoms are different than the usual complaint of either a squeaky fan, nothing but full blast, or no fan at all.
A common mistake is to bypass the transistor, applying voltage directly to the motor. When the motor runs fine in this mode, it's incorrect to read that as a healthy motor and assume that just the transistor is faulty.
However, it might be worth seeing if bypassing the transistor gives you full fan speed, which might indicate that the ACC is somehow sending faulty signals to the transistor.
posted by 71.234.193...
Posts in this Thread:
- Testing Blower Motor System, Judd, Fri, 14 Dec 2007 14:50:50
- button?, KenManiac , Sat, 15 Dec 2007 06:33:40
- Re: Testing Blower Motor System, marvinstockman, Sat, 15 Dec 2007 05:58:21
- townsend, yaofeng, Sat, 15 Dec 2007 03:24:25
- Check ACC signal output, Wingerr, Fri, 14 Dec 2007 22:40:35
- No real way to test, that I know of, David Ingram, Fri, 14 Dec 2007 16:43:54 <-- Viewing This Message
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