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    Leo Kapler's Avatar
    Leo Kapler Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 10, 2006, 10:20 PM
    Temp set at 72 but temp won't go above 66
    We have a Lennox Pulse 21 furnace. Temp is set at 72 but the furnace stops once the temp reaches 66 degrees. Thermostat seems to be working. The seems to be a problem just when it is really cold (0 to 10 degrees).
    letmetellu's Avatar
    letmetellu Posts: 3,151, Reputation: 317
    Ultra Member
    		  
    #2

    Dec 10, 2006, 11:13 PM
    What type of thermostat do you use. Can you over ride the settings? If you can put it on hold and turn the temp up. See if this makes the furnace continue to heat.
    JohnCola's Avatar
    JohnCola Posts: 1, Reputation: 1
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    #3

    Jan 23, 2013, 08:27 AM
    The thermostat is programmable and I did put it in Permanent Hold mode and still max is 66 degrees and stops.
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