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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jan 2019 Posts: 116 'Bolter | | 'Bolter Joined: Jan 2019 Posts: 116 | Has anyone used a resistor to lower volts going to heater motor?
If so what kind are you using?
1950 4400
| | | | | Joined: Apr 2016 Posts: 102 'Bolter | | 'Bolter Joined: Apr 2016 Posts: 102 | Joe, Check out Deve's website, there is a good write up on a harrison heater restoration and how to convert the motor to 12 volt. It may be easier to convert the fan to 12 volt than use resistors. I assume that you are working on an AD truck... http://www.devestechnet.com/Home/HeaterRestoreJon | | | | | Joined: Jan 2019 Posts: 116 'Bolter | | 'Bolter Joined: Jan 2019 Posts: 116 | Ok, I’ll check it out, thanks for the help
1950 4400
| | | | | Joined: Dec 2018 Posts: 2,450 'Bolter | | 'Bolter Joined: Dec 2018 Posts: 2,450 | Joe Alan NAPA has em kind of expensive but a 12v motor is about 75$. resistors about 13$ takes 2 I think, watch where you put those they get hot. My 51 works fine on the resistors its the round heater. Low speed works too. | | | | | Joined: Aug 2005 Posts: 277 'Bolter | | 'Bolter Joined: Aug 2005 Posts: 277 | I used a resistor from a 60's GM vehicle. They are used with the three speed heater switch to reduce fan speed. The coiled resistance wire is often located in the defroster duct of the heater. Take care where you place them. They get very hot. | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Ive used an ignition resistor on them. Worked good. Like they are saying it gets hot.
George
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
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