6-18-25 Walk-in freezer I spoke to Royal. They’ve been having multiple issues with the freezer and two companies have been trying to repair it for the last couple years or so no luck. Today I found the evaporator had a layer of frosty ice usually is an indication of infiltration. I put the unit into defrost check my defrost heaters all three are working and pulling about 2.9 A. I checked the condenser unit outside the compressor is covered with ice. It should not be like this. It’s only should be ice up to around with the suction line comes in and that’s it not covering it. I was able to thaw out approximately 90% of the ice off the evaporator. The remaining should not affect airflow too bad. While doing this, I found that the evaporator pan drain. It does have a heater and is working however there is no P-trap this will cause air to get into the box and potentially freeze the unit up. Put my gauges on checked my sub cooling and superheat. My sub cooling was it almost 25° very high a