My sons car battery went dead and after he jumped it, the SRS light came on. We then changed the battery and now the AC/heat does not work. It worked for a day or two after changing the battery but now nothing. The lights on it work, like if you turn the fan dial, each light goes on but know fan.

The SRS light is still on and now the window washer fluid doesn't spray.

You suggestions are appreciated.

 

Additional details.

All the lights on the AC/Heat system are lite and work properly, like if you turn the fan speed, the lights go on with it.

Do you think it could be the fan motor or the AC/Heat board or a relay?

Where is the relay for the fan motor?

Any suggestion is appreciated.