Check Receiver-Dryer-If Equipped

IMPORTANT: Prevent possible compressor damage. If moisture sight glass color indicates WET (pink), dryer is saturated and should be changed within the next 100 machine hours to prevent further buildup of moisture in refrigerant.

2. Check color in moisture sight glass (A). Color should be blue, indicating that refrigerant is DRY.

3. Check air bubble sight glass (B) for air bubbles. No air bubbles, or few air bubbles, should be visible.

4. If moisture sight glass shows WET (pink), or if excessive air bubbles are visible, see your authorized dealer within the next 100 machine hours to service the receiver-dryer.

A-Moisture Sight Glass
B-Air Bubble Sight Glass

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