Great suggestions - we will try these over the next couple of days.
Hi - sorry this has taken forever but I think we are at least down to making a final determination.
There was an issue with the seal around the door so we fixed that fairly well. But it also appears that the unit is not blowing cold air either. Is that something that can be fixed by doing something like recharging (like a car A/C) or does it mean we need a new cooling unit?
Thanks for your help!