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AC Problems with Fan settings

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pnm429

pnm429
Joined
Apr 3, 2010
Messages
10
Hello
I'm wondering if anyone has had problems with the high settings on there ac. I have changed out the resister switch and and the switch in the dash with no luck. The AC works in all other setting but high.

Thanks,
 
When the HVAC blower switch is set to the high position there is a relay involved. It is likely located under the hood near the blower assembly. Check for it on the A/C accumulator.

It also bypasses the resistors that are used for the lower blower speeds.

The power feed for this relay tot he blower is from the fusible links at the starter.

Not unusual for either the fusible link or the relay to go bad.

RemoveBeforeFlight
 
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