Is the correct drain type being used?
Gravity Drain Systems
Gravity drain systems are used when a near by floor drain is available. Drain lines must have a 1" drop per 48" (2.54 cm drop per 122 cm) of run or ¹⁄¿" drop per 12" (6.35 mm per 30.48 cm) of run and must not have low points where water can settle. The floor drains must be large enough to accommodate drainage from all drains
Drain Pump Systems
A drain pump is designed to pump water to a maximum height of 10 ft (3 m) and is necessary when a floor drain is not available. Use only Whirlpool approved drain pump kit Part Number 1901A. Some models come with the drain pump already equipped, if your ice maker didn't come with a drain pump, and it is needed, it can be purchased as an accessory.
This part can be ordered at our Purchase Genuine Parts site.
For complete installation instructions for both drain types see your installation guide. If you would like to download or view product literature for your appliance, please visit our Manuals and Literature page.