compressor switching off too frequently

Discussion in 'HVAC' started by Dennis Palmer, Jun 6, 2018.

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  1. Jun 6, 2018 #1

    Dennis Palmer

    Dennis Palmer

    Dennis Palmer

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    I have bought new split AC about 14 months before, but now their compressor switching off too frequently. Anyone knows what actually going wrong with my AC?
     
  2. Jun 6, 2018 #2

    kok328

    kok328

    kok328

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  3. Jun 8, 2018 #3

    Green8

    Green8

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    There are several possible causes as to why an air conditioner’s compressor would quickly turn on and off. These include:

    Low level of coolant. In older systems, this could be low R-22 or an R-22 leak. In newer equipment, there could be a leak of the R-410A or other working fluid.

    Electrical problems. There could be a short circuit or damaged wire in the electronic components of the compressor or the thermostat.

    Mechanical failure. Any of the mechanical components within the compressor may have failed.
     
  4. Jun 14, 2018 at 1:53 PM #4

    ROY123

    ROY123

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    A dirty filter restricts airflow and restricted airflow causes a whole slew of problems, including a frozen evaporator coil. This can cause the unit to malfunction by turningon and off in short bursts.
     
  5. Jun 15, 2018 at 2:49 PM #5

    WyrTwister

    WyrTwister

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    First , do you know how to operate a multi meter ? You can purchase one at Harbor Freight pretty cheaply .

    Do you know how to handle yourself around live electrical circuits without getting bit ?

    The controls should be 24 VAC , repetitively low danger .

    Does it have a " float switch " to kill the condenser when / if the condensate drain stops up and water backs up in the pan at the bottom of the evaporator coil ?

    Check , at the condenser , if you are loosing the 24 VAC going to the condenser contactor . Conventional A/C usually has 2 wires going to the condenser ( NOT THE POWER WIRES ! ) .

    Is the contactor cycling or just the compressor ? Just then condenser fan ?

    Please report back with more info .

    Wyr
    God bless
     

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