Like it says in the title.
I have one of those American fridge freezers. My fridge is 4 degrees, i know that's fine but DP has only just informed me that lately he's been hearing a 'noise' like 'tapping' from the freezer hes only heard it 2 or 3 times over 2 or 3 days.
Now he's mentioned this as this morning I went to the freezer and a pizza was soft, I figured, it was a pizza it was thin, I'd open and close the door thinking I had left it slightly ajar perhaps.
I have gone there about 10 minutes ago, it's still reading minus 21 but everything has defrosted, the ice cubes, the cornish pasties, the pizza, the chicken, everything.
What has happened, why, what, how, when, is basically what i'm asking, -21 is good right?? or is that terribly bad. I went on Yahoo questions and there's some faff on there about how it 'depends' .
TIA ladies