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Title: Not worth it
Review: I had this thermostat in my home for 3 years. It mysteriously failed for 3 days last year (no AC) and then suddenly worked right before the AC repair man could arrive. It worked another year and experienced same issue but never regained consciousness. It would not keep the numerically selected setting. I could actually stand there and watch it climb or drop over 10 degrees in a matter of seconds, which in turn would immediately shut off either my heat or AC, whichever. Backup batteries were not related to this issue. Owners manual had no customer service hot line number for me to call (another nice touch, very professional). It now adorns the local landfill. Try a Rite Temp touch-pad at half the price.
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