A liquid sight flow indicator in a refrigeration system is examined and gas bubbles are no

A liquid sight flow indicator in a refrigeration system is examined and gas bubbles are noted in motion with the fluid flowThis means _____.

A.the system is fully charged

B.there is air leaking in from the condenser

C.ice crystals are forming in the refrigerant

D.the system contains less than a full charge of refrigerant

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