When I turn on or off the air conditioner, I hear the water flowing sounds from the stand or wall mounted type product like hissing, swishing or gulping sound.
As the refrigerant(air conditioner gas) circulating the air conditioner pipe suddenly speeds up, you will
normally hear the water flowing sounds like ‘gulping sound’.
If you hear the water flowing sound when you turn on or off the air conditioner for the first time, then it
will be less louder as time passes.
At this moment, as the refrigerant moves, you will hear the water flowing sounds like ‘gulping sound’.
This is a normal sound generated when the air conditioner operates. The closer you get to the target temperature the less noises will be heard and finally it will completely disappear.
And, when the air conditioner is stopped, instantaneously, the refrigerant pressure is evenly distributed to make sure that it does not rush to either one of the outdoor unit, the stand or wall mounted type air conditioner.
Therefore, after the air conditioner stops operating, you might heart the water flowing sounds such as ‘gulping sound’.
As the refrigerant is evenly distributed over the pipe, the noise will be reduced and completely gone.
If the noise from the drain pump became louder suddenly, then consult with the pump installation company or pump maker.
This guide was created for all models, so the images or content may be different from your product.