Whirlpool ARG645/A+ Problem Home › Forums › Public Support Forums › Help And Support › Fridge And Freezer Forum › Whirlpool ARG645/A+ Problem This topic has 1 reply, 2 voices, and was last updated 7 years, 8 months ago by MartianO. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts July 28, 2018 at 2:51 pm #94330 MartianOParticipant Hi, I have a Whirlpool ARG645/A+ refrigerator that no longer auto-defrosts and struggles keeping the compartment at ~5 degrees. Any advice on parts needed/replacement appreciated, thank you. July 30, 2018 at 9:37 am #457056 kwattKeymaster Re: Whirlpool ARG645/A+ Problem Sounds like a refrigerant system problem. K. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In