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Old 06-14-2021, 12:31 PM   #3
Steeveedee
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Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,108
Re: AC/Heater User Fan Control - Melted Connector & Frozen Switch

Over time the connectors oxidize and the resistance increases. More current flows, and heat is amps^2 times the resistance. You get melted connectors. Cleaning and tightening all the connections should take care of it.
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