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Heater Switch Testing

 
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 John Buck
(@buckaroo01-2-2-2-2)
Trusted Member Registered
Joined: 8 months ago
Posts: 24
Topic starter December 5, 2024 10:23 pm  

The heater switch in my 1948 Chevrolet Fleetmaster Station Wagon “Woodie” is only working on one speed. I am looking at buying a used one is there a way to test it before installing to determine if all positions are working. Here’s a photo of my heater switch.

IMG 0882

 

 


   
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35mike
 35mike
(@35mike)
Estimable Member Registered
Joined: 14 years ago
Posts: 209
December 6, 2024 8:38 am  

@buckaroo01-2-2-2-2 John, I would think that using an ohm meter across the terminals would tell the story. Look for little or no resistance on high speed and increasing resistance as you switch to lower speeds.

 

Mike

Many Miles of Happy Motoring
3469 Posts on Old VCCA Chat


   
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 Mario Briseno
(@mario-briseno)
Active Member Registered
Joined: 10 years ago
Posts: 10
December 16, 2024 9:49 pm  

Are your switches riveted together or screwed together?  If it's screwed together, maybe take it apart and clean the contact points?


   
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