Is use of appliances in rental considered commercial use?

[Maxim Lorenz]

I just installed new appliances in my rental and having issues with the refrigerator. When I installed it, I noticed a leak from water dispenser. My tenants do not use water from the fridge so I simply shut the water off and decided to fix it later. Today my good tenants told me that the refrigerator is over-freeing and most importantly their electric bill went up significantly. Speaking with some electricians  I was told fridges are very power hungry  so it can certainly cause issues. Now, the appliances are new and should be under warranty. Here's the questions, is the use of appliances considered for commercial purposes while in rental? I ask because manufacturers TOS state "Commercial, non-residential, multiple-family use, or use inconsistent with published user, operator or installation instructions" are not covered. To me commercial use would be more in line with running a grocery store or in public use setting. Before calling warranty department I want to arm myself with knowledge to better approach this request as I am thinking as soon as I say it is for rental property they will deny my request. Worst case I'll pay out of pocket, but figured why if it is a new item. TIA.