White Rodgers White-Rodgers 1F85RF-275 Thermostat and Wireless Remote Sensor Kit Logo
Posted on Aug 21, 2010
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I have a 1F81-51 White-Rodgers thermostat that keeps resetting itself back to the factory default settings. I've chnaged the batteries, but it continues to automatically reset itself after I have programmed the cooling settings. What can be done to eliminate this behavior (besides setting the HOLD button)?

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  • Posted on Nov 14, 2010
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I had the exact same problem. Even pressing the Hold button does not really help, because once it resets - the Hold temperature also changes to the default.

I fixed this by replacing the 470 micro-Farad / 10v capacitor in the unit (it's the grey-colored capacitor). To access the back of the circuit board, you will need to break 2 plastic rivets holding the front of the unit to the base.

After replacing the capacitor I've not had any resets for the past 3 days (it used to reset itself every couple of hours).

Hope this helps.

Noel

  • Jeff Feng
    Jeff Feng Sep 27, 2014

    Hi Noel, I had the same problem, and replaced the capacitor. The thermostat is now working. Many thanks!

  • Mario Magliocco
    Mario Magliocco Mar 20, 2020

    Also replaced my capacitor and it's working great so far as opposed to resetting every day or two. Had to break a couple plastic pegs to open it up. Didn't have a 470 micro farad on hand so I salvaged two 1,000 micro farad capacitors from a dead power supply and added them in series.

    Thanks Noel from 2020 COVID-19 shelter in place!!

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