My interior dash A/C, hi/low knob turns but no longer changes the speed of the air flow. The other two knobs (direction of flow and temperature) work just fine. any help?

Asked by Sep 06, 2015 at 06:55 PM about the 2010 Toyota Corolla S

Question type: Maintenance & Repair

Do I need to get a replacement part
for that knob? And if so, what is it?
Thanks!

8 Answers

76,235

Possibly, but I would check and see if there is a blower motor resistor first, they cause the same problem. I don't know Toyota well, but do know about blower motor systems.

1 of 1 people found this helpful.

Yes, it does have a resistor. The next window will show a link that is ridiculously long but will show one of the many places to buy one

https://www.google.com/shopping/product/3502757829934180417?q=2010+Toyota+Corolla+HVAC+blower+motor+resistor&biw=1920&bih=940&dpr=1&prds=paur:ClkAsKraX2y3oiTcpfpASOPX93pFZffEcr7sl_x4F2fPGTk8-OeZPCAgIjENsJm-Uu4neB6kBM86c8kS0rGFEKk_Ajxy9xTnRAG5XGXpGa0nsPCSjBK7Umvk0xIZAFPVH701mehtrgg023L-P425SU72zTf4Gw&ved=0CAUQpitqFQoTCLfFyreY5ccCFciYgAod2wIC1Q&ei=1abtVfeGLMixggTbhYioDQ

https://www.youtube.com/watch?v=oN00qfrYOzM

1 of 1 people found this helpful.

http://www.oreillyauto.com/site/c/search/Blower+Motor+Resistor/02627/C0039.oap?model=Corolla&vi=1444170&year=2010&make=Toyota

Generic information... not Corolla specific but informative http://www.samarins.com/glossary/blower-motor-resistor.html

I have been looking everywhere for Corolla specific installation instructions but no luck - This is Tacoma, should be same or very similar - https://www.tacomaworld.com/threads/replacement-of-hvac-blower-motor-resistor.8310/

Good morning Rowefast. It's really similar to most any car.

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