07 Century AC fuse keeps blowing, where should I look?

When fuses blow repeatedly its usually a skinned wire touching metal.
Does the fan continue to run and blow warm air or does the fuse kick everything off??

 

Is you fan fuse burning out??

You will need to clean the air filter for your bunk fan or cab fan.

 

Trace the AC compressor wire all the way to the fire wall and look for a skinned place. We had one go bad once inside the bundle going through the fire wall and had to run a new wire from the ac relay the compressor.

 

It would be nice to know what fuse is blowing?

 

I was going to reply this too since he is correct. I am a certified mobile electrician and random blowouts are usually caused by a wire making contact with metal or maybe even its own ground. You could try moving wires around in case they are contacting one another or rewiring the a/c as best you can in the hopes you can fix it. You may also want to check if maybe something else is wired to that same fuse causing the amperage to spike. You could also probably get away with adding a higher fuse as long as it's not too high so that if there is a problem it won't keep the circuit closed.

 

Last winter my fan fuse kept blowing every time I needed defrost.

Compressor was froze up. Pulled plug off compressor and had defrost till summer came and compressor was replaced.