Sorry, I did not mean to raise some eyebrows. I do not know of a way to post a PDF so here are pictures of the three most important pages in the operation of the remote. The handheld remote can only be the culprit of temperature fluctuations if is in the "I feel mode". When in this mode it is acting like the receiver and sending temperature readings to the furnace or AC from where I have it located in the trailer. They should label it "Please do not leave it outside". The receiver sends the signal to your furnace to ask for heat or your AC to ask for air. My receiver is on the wall as you go up the steps to the bedroom. It does a good job of regulating the temp but my 2955 has drafts because of bad circulation. If the receiver is seeing drafts which I suspect it is because of poor heat circulation then you will have 10 degree fluctuations. I noticed how cold the bedroom is versus the living area so I have a fan blowing air up into the bedroom to move the air around when going to sleep. If you shut the doors the receiver will only do a good job of sensing the living area and not the bedroom. The next three pictures should help those that may not have gotten this info. Or help those who would like to know something about the remote. Please forgive the size.
http://tinypic.com/1rrknn
http://tinypic.com/1rrkwj
http://tinypic.com/1rrl1z