My heat pump iced up in the winter season

I feel like a lot of my friends are having troubles with their heat pump.

I currently have central heating & cooling & to me heat pumps just seem a little bit more complex to me, my friend stated that his heat pump iced up in the winter.

Supposively the heat pump did not go into defrost mode like it should have. I suppose it’s normal for the entire coil to be covered in a white frost even in some light ice during certain weather conditions in the winter. However it is not normal for the entire equipment to be encased ice. This is a extreme problem & it would be need to be addressed quickly to a local heating & cooling professional to avoid extreme harm to the equipment. Supposedly my friends neighbors outdoor equipment iced up so exhausting that it ended up damaging the fan blades & it even crushed the outdoor coils. This caused the refrigerant in it to leak out & ruin the compressor. This completely harmd the outdoor equipment & they needed their entire outdoor equipment to be substituted. I cannot imagine how much money this must have cost them. Hopefully they were able to finance & do some sort of payment plan with their heating & cooling equipment because I cannot imagine having to pay thousands of dollars up front. I know that some heating & cooling companies will offer some sort of warranty depending on mechanical issues that were not caused by the homeowner. I’m hoping that I will never have to experience this kind of harm to my outdoor equipment ever.

cooling