Frost build up in freezer

Easiest way to defrost is to place a towel in the bottom of the freezer & start waving a hair dryer at the ice build up.
Do it right & the ice will come out in large pieces.

A long time ago, someone suggested putting plastic cutting sheets in the back of the freezer. The ice will then buildup on the cutting sheet, which is easily removed when flexed. the ice will break off and then you can put the cutting sheet back on the back freezer wall. I only have to defrost the rest of the freezer maybe once every 6 to 8 months. Give it a try.

In two months you'll have enuf ice in there to cover the north pole. Adsorption refrigerators have to be manually defrosted from time to time. Easiest way I found is to empty the freezer compartments...Using a turkey baster and hot water, liberally plaster the walls. Once the ice melts enough to remove, toss it out then use a couple dish towels to mop up the excess water. Dry it well and put your stuff back in the freezer. DONE!.....your fridge will run more efficiently and gvie you better service.....Dennis

YES, it does affect refrigerator operation-- ice is an excellent insulator and diminishes the heat transfer from freezer to coils.

I would defrost it now and then again in two months.

The ice maker (presence of water in the freezer) does lead to ice build up-- perfectly normal.

So just leave it until we get back home and then I will turn it off. That is in about 2 months. It doesn't affect the operation at all?
Thank you

For 4 months, I'd say that's pretty normal. The back wall of the freezer is where the cold is so the accumulation will be there.

Yes, I have to defrost mine even in AZ.