Sounds like that could be the problem. Where do I order the defrost heater?
OK, I ordered and replaced the defrost heater (new one is dual bulb, not single). Instructions say to "re-energize unit and test refrigerator operation". Plugged in, turned on, and seems to be cooling. However, I'm concerned that I won't know if it's building an iceberg in the evaporator again until the unit fails and stops cooling. Is there any way to know if the new defrost heater is working without pulling the entire back panel again to check for ice?
AARRGHH! Horrible job getting that back panel off without ruining gasket, etc. but if that's the only way to check guess I'll just have to do it. The problem was clearly the defrost heater, because after running the unit for about a week, it was already severly iced up today when I pulled the panel. We don't live here full time so I'm concerned about putting any frozen food back in it until I can see that it's defrosting properly.
Thanks for your help, we're very rural, over 100 miles to nearest town with appliance repair and they won't even consider coming out here.
Thanks, will do!
Pulled the panel yesterday, and coils are frosty, but NO ice buildup! Yippee! Thanks for the help, think we've solved the problem.