This Air Conditioner SERVICE MANUAL provides various service information, including the mechanical and electrical parts etc. This room air conditioner was manufactured and assembled under a strict quality control system. The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit. 1.1 SAFETY PRECAUTIONS 1. When servicing the unit, set the ROTARY SWITCH or POWER SWITCH to OFF and unplug the power cord. 2. Observe the original wire insulation. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 3. After servicing the unit, make an insulation resistance test to protect the customer from being exposed to shock hazards….

The ventilation lever must be in the CLOSE position in order to maintain the best cooling conditions. When fresh air is necessary in the room, set the ventilation lever OPEN position. The damper is opened and room air is exhausted….

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