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'81 fan blower not working in ac (Read 93 times)
Jun 27th, 2019 at 1:03pm

just an old bus motor   Offline
Newbie
I Love my Corvette!

Posts: 2
 
I replaced the fan switch, heater/ac controller, fan relay, and the resistor. At 1st I had all fan speeds but high. I found a ground issue with the relay so I jumped a temporary ground wire to the block. I now have all fan speeds (including high) until I move the lever to ac. The clutch is engaging but I lose the fan speeds except low speed that is always on. When I check current at the switch, brown is hot, yellow is hot when the lever is on the heat side but not when on the ac side. Both of the light green wires have current in ac mode. Maybe a bad (new) switch? Need input! Thx
 
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Reply #1 - Jun 29th, 2019 at 5:28pm

just an old bus motor   Offline
Newbie
I Love my Corvette!

Posts: 2
 
It was a bad (new) switch. Re-installed the old one and works fine.
 
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