If you see the sight glass bubbling should you add refrigerant? Why or why not?
a. No, the system may have just started or there may be a low load.
b. No, wait until the bubbles stop before adding refrigerant.
c. Yes, bubbles always mean the system is low on charge.
d. Yes, when in doubt you should always add refrigerant.
a. No, the system may have just started or there may be a low load.
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Fill in the blank(s) with correct word
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