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• When the water collects to level (A) in the pump reservoir, the drain pump begins to operate and discharges the water. • When the water level drops below level (B), the drain A B pump will stop. NOTE: • If for any reason the water level exceeds that of level (A) in the pump reservoir, an overflow Drain Switch will stop the compressor operation. • If the Fan Mode Control DIP Switch (see pg.13) has been set from the COOL to the STOP position, the Fan will also turn off while the drain pump is di