2000S fans not working good

[ybn533]

Hi,

After I gone over a few forums about the fans issues I didn't find the answer.

My problem is that the fans are not running on the low speed. only on the hi speed. they do work on low speed when I start the a/c but they don't engage at low speed when they reach the hi tempeture.

relays= ok
fuses=ok
resistors ??? can it be that both of them not good? Can be also that one was bad before and only one worked, I didn't noticed it and only when both of them broke the car overheated?

So, any Idea what can couse the fans not to trigger on low speed? (remind you that the a/c do trigger the low speed)

Thanks
Yaron