Do you keep you air-con all the time? At the very least it needs running on the coldest setting for 10 mins or so once a week to keep the gases circulating and everything ticking over. Nasty niffs can develope otherwise!
Mind you a month isn't long even if you haven't been using it regularly.
Regards Bob
Mind you a month isn't long even if you haven't been using it regularly.
Regards Bob