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Thread: window unit

  1. #1
    Join Date
    Jun 2005
    Posts
    3
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    working on a window unit. I have sweat on suction line al the way to the comp. suction press is 70. Temp on line going in evap is 40 deg. No high side port on unit yet. All seems well with the operation until the compressor shuts off after it runs for 15 minutes. I have no wiring diagram. It seems like the t stat on the unit is shutting it off early. Does anyone know what the letters identify on back of t-stat. (l,c,b,& h) I want to bypass the stat and see if it keeps running. Any ideas???

  2. #2
    Join Date
    Aug 2001
    Posts
    1,936
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    separate thermostat from fins of the evaporator and see what happens

  3. #3
    Join Date
    Feb 2001
    Posts
    35,838
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    I,C,B,H.....I Need A New Window Unit.......so the letters don't match up, sue me.
    Hey cockroach, don't bug me!

    www.AskTheDiceman.com

    www.TheColdConspiracy.com

    www.Pennwood-HVAC.Com

    Bring Em Home....

  4. #4
    Join Date
    Jun 2005
    Posts
    3
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    these letters were off the selector sw. opps! thanks any way only 2 wires on t stat. dah!

  5. #5
    Join Date
    May 2003
    Location
    Sarasota. Fl
    Posts
    1,379
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    Originally posted by Diceman
    I,C,B,H.....I Need A New Window Unit.......so the letters don't match up, sue me.

    You beat me to it.
    It is the job of thinking people not to be on the side of the executioners.

    ~Albert Camus

  6. #6
    Join Date
    Jun 2005
    Posts
    3
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    Lightbulb

    O.k. here's what I have found so far.The thermister on top of the comp. was cutting out. Happening on two sep. units. tried getting sweat line to comp. by adding freon on the second unit and suction gage read 90 psi. evap. was only cold 3/4 up. outside air was 90 deg. The first unit ran good til it warmed up, then it started cutting out. It had 70 psi on suction gage and the sweat line went to the compressor. any ideas?

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