I have a freezer evap coil with ice accumulation only at the top around the copper refrigerant tube and wiring. The refrigerator won’t get below 42 Fahrenheit. The compressor runs all the time. Does this mean I need to replace the refrigerator due to a sealed system leak? The evap fan runs fine.
It's not necessarily the refrigerant itself, it could be a defective compressor. If the compressor is the cause, it probably is not worthwhile repairing. Just a refrigerant leak might be worthwhile to have repaired if it can be isolated but could still easily be $150-$200+