2. Look into the sight glass to see if the refrigerant is
flowing through its circuit.
(1) Sight glass
(A) Proper
(B) Low
(C) Overfull or no refrigerant
Proper (A) Little or no air bubbles in the refrigerant flow.
Low (B)
Lots of air bubbles in the refrigerant flow (air
bubbles or foam passing continuously).
Overfull or no
refrigerant (C)
Colorless and transparent.
IMPORTANT :
• Charge only with R134a not R12 refrigerant
(gas).
PERIODIC SERVICE SERVICING AS REQUIRED
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