pull the switch and run an ohm meter against it. if the lower speeds show no connectivity (probably the case) there is your problem. The other thing to check is the connectors at the back that go up to the blower motor (left rear most pillar). You may find that they look burnt, in which case your problem could be corrosion on the connector, and only with a high current is power making it through (not a good situation). But the first situation is your most likely case. On Jul 21, 2011, at 10:01 PM, Gregg Carlen wrote: > Well, I finally got my AC operational. While it makes a world of difference, the one problem I have is that it only works when the blower fan is set in the #4 position. If I turn it to a lower setting, the system turns off. > > The only thing that comes to mind is a bad blower fan switch. Any way to test this theory? > > Anyone else seen this behavior before? Other advice of where to start troubleshooting? > > Gregg > 90 Westy |
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