I brewed a Belgian Strong Ale last week, I like to keep fermentation relatively cool (say 17 deg) for the first few days than ramp up to say 20 deg to finish it off. It was 38 deg in melb last week, so I put the fermenter in the fermentation fridge (first time I've used the fridge in the last 6 months) and it worked perfectly - 38 deg in the shade, and my temp controller is showing me its 17 deg in the fridge. A few days later I increase the temp controller to 20 deg, and of course the weather has been (relatively) cold in Melbourne since - the temp controller has been showing that the fridge temp at 14 deg for the last 4 days!! I'm aiming for a nice clean finish, and now the yeast has probably fallen asleep. And of course the forecast is for 37 deg again tomorrow, so I need to leave it in the fridge. I'll probably just rack it to a secondary on the weekend to rouse the yeast a bit, and give it another week to finish off. Ahhh, first world problems.