[Great Northern Cleaning]

So we had Home Energy Products come out and install one of the Mitsubishi units last week. It works as promised and we are very pleased with the installation. I just got home and noticed that I could hear the outside unit running..so I went out to check on it and noticed all the fins are froze up. Is this normal? For anyone that has one of these units….do you have any kind of shelter over it? My feeling is its the freezing rain getting pulled in by the blower fan. It was to late to call H. E. P. to ask them. Any input from experienced heat pump owners would be welcome. Frank GNC