Hi. i have a glacier fridge freezer. when it was working ok, when i closed the freezer door it would make like a suction noise and i couldnt open the door for about 10 seconds. i came home today, opened the freezer then closed it - no suction noise and i could open the door straight after closing it. i thought maybe i had a power cut but it wasnt. i opened the fridge and the interior light was on. the food in the freezer was starting to defreeze and the food in the fridge wasn't cool. everything on the back of the fridge was cold. can any one help? thank you.