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    Kndaplgrl's Avatar
    Kndaplgrl Posts: 8, Reputation: 1
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    #1

    Mar 22, 2009, 10:40 AM
    Trane Furnace
    I have a Trane furnace that is 8 years old.

    The thermostat in the house was replaced with one that could be programed. Even when programed the furnace will run, shuts off and comes right back on again. This will go on for quite awhile.

    In looking at the furnace I notice there is a timer on the left side which is not set at the correct time of the day. I didn't want touch anything until I checked with someone first. Shouldn't that be set to match the correct time of the day?

    Thank you.
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #2

    Mar 22, 2009, 02:12 PM
    They say its hard to stop a trane, they don`t tell you how hard it is to start a trane

    Did this problem just start when the new tstat was installed?
    If so I would go back and look hard at the installation instructions, something just not right
    Kndaplgrl's Avatar
    Kndaplgrl Posts: 8, Reputation: 1
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    #3

    Mar 22, 2009, 03:02 PM

    No it has been doing it off and on for a long time.

    However I just noticed this timer box this morning which is not set to the correct time.
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
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    #4

    Mar 22, 2009, 03:25 PM
    Do you have an Electro-Wash air cleaner? The timer may be used for scheduling the wash-down cycles.
    Kndaplgrl's Avatar
    Kndaplgrl Posts: 8, Reputation: 1
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    #5

    Mar 22, 2009, 03:40 PM
    No I do not.
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
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    #6

    Mar 22, 2009, 03:53 PM
    Keep an eye on the timer - is it running/advancing? Can you determine what, if anything, it controls?
    Kndaplgrl's Avatar
    Kndaplgrl Posts: 8, Reputation: 1
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    #7

    Mar 22, 2009, 03:59 PM
    Yes it is advancing but the time is not correct.

    I have no idea what it controls.
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
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    #8

    Mar 22, 2009, 04:04 PM

    Can you take a picture of this timer and post it here? It may help. Although I doubt the timer is causing your furnace problems.
    Kndaplgrl's Avatar
    Kndaplgrl Posts: 8, Reputation: 1
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    #9

    Mar 22, 2009, 06:20 PM
    Ok here are a few pics.Name: Furnace pics 001.jpg Views: 252 Size: 68.3 KB

    Name: Furnace pics 002.jpg Views: 290 Size: 40.1 KB

    Name: Furnace pics 003.jpg Views: 255 Size: 48.1 KB
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
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    #10

    Mar 22, 2009, 09:03 PM
    It looks like a Tekmar setback timer. I've seen them used on boiler systems in apartment buildings, but never on a residential forced-air system. If in doubt, remove the dial cover and adjust the clock to the correct time (by turning backward, if memory serves me). The tabs on the dial can be set to "ON" or "OFF". Setting them all to the "ON" position will render it ineffective.
    Kndaplgrl's Avatar
    Kndaplgrl Posts: 8, Reputation: 1
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    #11

    Mar 23, 2009, 10:17 AM
    Ok I will try it then.

    So I should put on off then to make it effective?
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
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    #12

    Mar 23, 2009, 03:08 PM

    Personally, I would put it on, which will bypass the timer. I don't see any need for this timer on a forced air system. If you do turn it to on, it will eliminate the timer as your problem. Then we can take the next step to find the problem.
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