Question about Maytag M6Y12F2A Air Conditioner

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Temp control moves on it's own

I set the temp control on my AC to 68. After about an hour or two of running fine, it moves on it's own down to 30 and sometimes 20 and it beeps as the number moves down as if someone is pushing the button. The unit stops cooling and only the fan runs untill I hold both the up and down buttons. It then resets to around 78 and I am able to use the down arrow to set it to 68 again. At that point, it works fine for a couple of hours again, and then the process starts over again. (I clean the filter on a regular basis, once a week.)

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  • jaspaper Sep 01, 2008

    THis is where it all starts. I have had this unit for 18 months and last year the control pannel started acting up. This year it got really bad and got to the point I couldn't hardly do any thing with it. When I removed the control pannel it was covered with corosion (moisture). I cleaned it up and got it to somewhat work again. Three weeks later the blower motor has locked up. I beleive that water from the condensor is not getting out of the unit properly and is wreaking havock inside the case. Once removed and the outer case taken off the whole inside of the unit had corosion and had a very bad stench. There was almost a 1/2" of stinky slime/mud on the bottom pan. You could phisically see where the fan blade had been throwing water around inside the case. I beleive Maytag/Feddres? has a problem with this one. Reinstalled my 30 year old Amana the has been sitting since I bought this one and It works great. Does anyone build a product that lasts any more?

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Mine was doing the same thing and it was really frustrating! I would come home and it would be 88* inside. I found out that this model air conditoner has had problems with moisture getting in the control panel and shorting it out when it's humid outside. I have the part number if anyone wants it. It cost me about $45 from Sears Parts.

Posted on Jul 08, 2008

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Since it's within 2 degrees of your setting it could be one of two things. Most furnaces run longer (pass your setting) to maintain the setting you made. Which really not a problem. However, your thermostat may need calibrating. To test this theory, place a regular wall thermometer next to your furnace's thermostat and see if the two temps match when the furnace cuts on and then when it cuts off.
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