Complaint is refrigerator temps are erractic, Upper Parts of freezer warm lower normal. same with refrigerator side. Lady ws in hospital for a few days & comes back to melted ice & warm milk. I am in area when call comes in but do not have a lot of time to spend. I stop for 30 minutes.
When I arrived I noticed Mid to upper back wall of freezer Has layer of frost, but I hear defrost element melting ice on evaporator. Compressor & fans are silent. I immediately take temperature with IR temp gun. Upper freezer is upper 20's bottom 2-4 degrees. FF side upper decks are high forties, crispers 37-38.
As defrost cycle heats back wall gets up to 100. After some time it finally cools down to the 60's. Compressor finally starts along with condenser fan. Condenser has some dust blockage which I clean up. Evaporator fan never comes on. It does not feel like the evaporator is getting cool, don't have the time pull back wall down & really don't have the experance to diagnose properly.
She wants me to come back & repair tomorrow, What can I look for in my troubleshooting. While I was there she had it plugged into a 3-way adapter plug with the ground prong missing & a microwave plugged into same adapter. I plugged the refer into the grounded receptacle.
I checked the apmperage & wattage with the plug in extension meter I have & it started with a amp draw of 1.70 rose a little then dropped down to 1.2 amps. I unplugged & replugged immediately to check head pressure, the amp draw rose to 7.5 amps & overload kicked it out Thus dropping amp draw below 0.7. I take it the sealed unit is sound.
As always all help & suggestions greatly appreciated. Patricio.