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    lucy52 Posts: 1, Reputation: 1
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    Feb 17, 2011, 07:07 AM
    My lux ultra thermostat won't work.
    When I turned it on, it wouldn't come on (showed the regular screen though). I changed the AAA batteries but it's still not coming in. I didn't get an owner's manual for the thermostat when I bought the house 9 years ago. The only numbers I see for a hint as to a model are Serial #95029537 (also has a number stamped 9412). Your help please... thank you!

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