why does my a/c change from blowing cold air to warmer air at a stop light?

Monitor engine temperature as well !

Thank you. The temp gauge has gotten very high when I was in idle for about 7 min. about a month ago. Plus I just checked and my fans are not working. You’re great!!

Thank you. You’re correct about the fans

Fans are available aftermarket as an assembly - this includes the fan control module .. There is a fuse in under hood fuse block that ‘might’ possibly be blown - however every one of these I have repaired turned out to be the fan assembly itself.

This problem happens frequently - Ford should be fixing this for their customers!