air conditioner fan does not work on the high setting?

Hello,

It sounds like you have a blower motor controller that has gone out. But to be sure here are some guides so you can do some simple tests. First check the fuses.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

Please run some tests and get back to us we are interested to see what it is.

Cheers, Ken