compressor switching off too frequently

[Dennis Palmer]

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?

 

[user 4883]

This is referred to as "short cycling" and there a many causes for it.
Take a look at this link and see if you can determine the cause otherwise, you may have to call in a Tech to look at it.
Hopefully still under warranty.
https://inspectapedia.com/aircond/Air_Conditioner_Short_Cycling.php

 

[Green8]

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.

 

[WyrTwister]

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