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05-27-2022, 11:45 AM
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#1 |
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Registered User
Join Date: Oct 2010
Location: Indianapolis, IN
Posts: 134
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Can Someone Tell Me What This Is/Does?
Removed my heater box to swap out the heater core.... noticed this in the area where the core is near...... What is this thing/what does it do?
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05-27-2022, 11:52 AM
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#2 |
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Registered User
Join Date: Jul 2015
Location: Sedalia Mo.
Posts: 1,131
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Re: Can Someone Tell Me What This Is/Does?
Those are the resistors that are used to set the blower speed.
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He who is without oil shall throw the first rod. Compressions 8.7:1 1972 C10 1976 C10 (parts truck) 1985 K20 |
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05-27-2022, 11:52 AM
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#3 |
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Active Member
 
Join Date: Feb 2017
Location: Chapin, SC
Posts: 108
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Re: Can Someone Tell Me What This Is/Does?
Somebody please correct me if I am wrong, but it looks like the resistor that controls either the fan speed or the variation on the heat output. It produces heat so it is installed inside the box so that air moving across it cools it.
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05-27-2022, 01:35 PM
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#4 | |
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Senior Member
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,976
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Re: Can Someone Tell Me What This Is/Does?
Quote:
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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson |
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05-27-2022, 12:03 PM
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#5 |
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Senior Member
Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,862
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Re: Can Someone Tell Me What This Is/Does?
yup. blower motor resistor
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1967custom |
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05-27-2022, 05:25 PM
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#6 |
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Registered User
Join Date: Apr 2011
Location: Klein Texas
Posts: 3,852
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Re: Can Someone Tell Me What This Is/Does?
And when current if flowing through those resistors the byproduct is heat. That's why they are mounted there.
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My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe |
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05-28-2022, 08:42 AM
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#7 |
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Registered User
Join Date: Oct 2010
Location: Indianapolis, IN
Posts: 134
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Re: Can Someone Tell Me What This Is/Does?
Thanks guys! I haven't had to replace that yet (I knew the resistor existed but my fan speed works fine) and I didn't realize that's what it looked like on the other side!
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05-28-2022, 08:43 AM
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#8 | |
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Registered User
Join Date: Oct 2010
Location: Indianapolis, IN
Posts: 134
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Re: Can Someone Tell Me What This Is/Does?
Quote:
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