what does a flashing red light mean on a central air conditioning system?
Answers:
That isnt much to go on. Better be more specific and detailed!
Other answers:
your screwed
your screwed
it means get the f out of your house you ac is rigged with explosives form heballoha. just messing i have no clue it might just mean to get a check up.
Clean or replace your filter
It's a homing beacon- run, run as fast as you can!
CHANGE YOUR AIR FILTER OR PERFORM OTHER SERVICE!