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- Silverado, Sierra & Fullsize Pick-ups (https://chevroletforum.com/forum/silverado-sierra-fullsize-pick-ups-21/)

- - Heater switch (https://chevroletforum.com/forum/silverado-sierra-fullsize-pick-ups-21/heater-switch-52124/)

spinner00

Jul 28, 2012 4:05 PM

Heater switch

I have a 2000 Silverado and the heater fan switch only works on the 3 4 5 settings and will not work on the 1 2 settings Do I need a new switch or is there something else wrong.

96 Junk That Moves

Jul 28, 2012 4:16 PM

Replace the switch. Easy fix

oldchevy

Jul 28, 2012 10:40 PM

It might be the switch, but it could also be the fan motor resistor.

96 Junk That Moves

Jul 29, 2012 10:16 AM

If the resistor was bad I don't think the fan would run at all...imho...you could always test the resistor with a meter as well as the switch but my money is on a bad switch.
Personal experience...

xpeder

Jul 29, 2012 3:58 PM

bad resister 1234 use the resister and 5 by pass resister

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