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Honeywell Thermostat RTH221B1021



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  • Posted by mfaziosw on Mar 5th, 2014 at 1:13pm

    How to install a honeywell thermostat rth221b021 w
    How to install a honeywell thermostat rth221b021 with two wires coming from wall
  • Posted by gubber.eg on Jan 31st, 2014 at 2:52pm

    How to change from celcius to farengheit on a hone
    How to change from celcius to farengheit on a honeywell termosthat model RTH221B1021
  • Posted by kathy.coy on Feb 24th, 2013 at 4:16pm

    My grandson was pushing the buttons on my thermost
    My grandson was pushing the buttons on my thermostat and it is now flashing "leave". It looks like it is set on 62 and it should be set on 68. When I use the up arrow to change the temp it will start the furnace but it doesn't save that temp. I can't find my manual. Help!
  • Posted by hepalmer on Jan 11th, 2012 at 8:21pm

    I bought a house with a RTH221B1021 thermostat. D
    I bought a house with a RTH221B1021 thermostat. Don't know if it's programmable or not and have no manual. HELP.
  • Posted by jjjlb_4 on Oct 27th, 2010 at 2:09pm

    Manual
    I need a manual, please...

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