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  1. #1
    Join Date
    Oct 2009
    Location
    Eastern Washington
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    48

    Carrier shuts off in heat.

    Our 3 year old unit has a new compressor as of 2010. Yesterday, the compressor and fan shut off in heat of the day. I turned sprayed with water until it started again.

    Is this simply a 'thermocouple' switch that might need replacing?

    Doug

  2. #2
    Join Date
    Nov 2010
    Location
    N. Idaho
    Posts
    586
    Quote Originally Posted by osage View Post
    Our 3 year old unit has a new compressor as of 2010. Yesterday, the compressor and fan shut off in heat of the day. I turned sprayed with water until it started again.

    Is this simply a 'thermocouple' switch that might need replacing?

    Doug
    Thermocouple? In a condenser? nope.

    What part of E. Washington?

  3. #3
    Join Date
    Oct 2009
    Location
    Eastern Washington
    Posts
    48
    Wenatchee

  4. #4
    Join Date
    Oct 2009
    Location
    Eastern Washington
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    48
    .

  5. #5
    Join Date
    Nov 2010
    Location
    N. Idaho
    Posts
    586
    Model #?

    Any pressure switches? (high pressure)

  6. #6
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    19,554
    Since the condensing unit was replaced three years ago, what kind of maintenance has been performed on the system?
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  7. #7
    Join Date
    Nov 2010
    Location
    N. Idaho
    Posts
    586
    Couple other ideas, but not something I can tell a homeowner to do/check.

  8. #8
    Join Date
    Oct 2009
    Location
    Eastern Washington
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    48
    Quote Originally Posted by Damien View Post
    Model #?

    Any pressure switches? (high pressure)
    Carrier #38TKB
    Don't know if it has a high pressure

  9. #9
    Join Date
    Oct 2009
    Location
    Eastern Washington
    Posts
    48
    Quote Originally Posted by timebuilder View Post
    Since the condensing unit was replaced three years ago, what kind of maintenance has been performed on the system?
    The compressor was replaced a year half ago. No maintenance to the AC since

  10. #10
    Join Date
    Oct 2009
    Location
    Eastern Washington
    Posts
    48
    Quote Originally Posted by Damien View Post
    Model #?

    Any pressure switches? (high pressure)
    Model 38TKB. not sure about pressure switches

  11. #11
    Join Date
    Nov 2010
    Location
    N. Idaho
    Posts
    586
    Well, I suppose it may have a high pressure switch as part of an accessory. But with out being there, I dont know.

  12. #12
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    19,554
    Quote Originally Posted by osage View Post
    The compressor was replaced a year half ago. No maintenance to the AC since
    I would start with having the contractor come by and do the yearly preventive maintenance.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  13. #13
    Join Date
    Jan 2009
    Location
    Keokuk, IA
    Posts
    5,520
    Hmmm.... 3 year old unit. Needed a compressor when it was only 1-1/2 year old, now that compressor is shutting down on most likely a limit switch.

    I can't help but think you have other issues going on. Maybe low airflow, incorrect charge. Heck even the condensor fan could be running backwards or something crazy.


    Is the company the repalced the compressor the same one that did the original installation?

    Let us know what the contractor says the problem is with as much detail as possible.

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