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Re: Zero Heat
Those control heads were known to fail.
The transistors are a weak point.
If it ends up the control head is the problem, here is a thread from another chevy truck board that might help. There is part information too.
https://www.chevytalk.org/fusionbb/s...ecbce0c900bf9/
Here is a photo of the control board. It only has two of the transistors circled so notice there are others. Somewhere I had information on what each transistor does but I can't seem to find it. I will look some more tomorrow.
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For those of you that are wondering why you are not getting replies to your thread:
Did you give the model, year, engine, fuel system type, and transmission information?
If it is modified from what came stock from the factory, let us know that too.
Last edited by ChevyTech; 11-22-2022 at 12:20 AM.
Reason: Add more
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