You should pick up a sponge filter today and hook it into your air line. You can get one for under $10. I would run sponge filters and shut down the AC until you get it working. Squeeze out and rinse the media into your water before taking it down completely though. You may want to consider using sponge filters full time since you've had so many issues with mechanical filters.
See clockwork's sticked write up on sponge filters in the Filtration sub forum.
See clockwork's sticked write up on sponge filters in the Filtration sub forum.