Why are water droplets or moisture formed on the service valves?

Last Update Date : Mar 21. 2018


Water drops or moisture can occur on the service valve because of high humidity.


[Related Symptom]

Water droplets are found on the service valves.



Humidity & Refrigerant overcharge



Abnormal Conditions

● At the outdoor unit, some moisture will be formed.

    Moisture will be found on the suction service valve. 


    The reasons for moisture on the service valve are as follows:

● High Humidity: In the rainy season, the humidity level is higher than usual. Low temperature and high humidity can generate moisture on the service valve.

● Refrigerant overcharge: Refrigerant overcharge will cause dew drops on the service valve and they will trickle down onto the floor. 

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