I don't know how many times Yendor or I have to post this but anyway...
Under normal loads and conditions the A/C fan has bugger all to do for overheating.
You can take it off and hoik it down a long drop if you want.
Later model 'trols don't even have them.
Where fitted the A/C fan should run under two conditions;
Either the A/C is selected
OR
The coolant is above 100 degrees C
When the A/C fan starts running with the A/C OFF it means the engine is already starting to overheat because the coolant sensor has detected that it is at 100 degrees AFTER it has passed thru the radiator.
Ergo, unless it is a stinker of a day or you are loaded up then something is wrong
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