Alright I have a 91 Crx si and the heater isn't blowing. I don't know what the problem is because I checked the Fuse and it's good. I then Replaced the blower motor resistor and still nothing on any setting. After that I replaced the switch for the settings and still nothing. Finally I replaced the blower motor and I still get nothing. I don't know what to do my car has been sitting for about a month now because it has no heat at it's about 10 degrees in Wisconsin. Does anyone know what the problem might be?

 

blower flow chart
https://honda-tech.com/zerothread?id=2058311

 

Thanks for that your a savior...I'll test it this weekend lets hope I can figure it out