According to Whirlpool, this is usually caused by one of the following:

– Inadequate water pressure.
– Kinked tubing anywhere between the valve and the dispenser outlet.
– Dissolved air or gases in the water supply.
– The slight expansion and contraction of the reservoir as it warms and cools.

The key word is “usually.” For the frustrating exceptional case where it’s none of the above, see this topic in the Samurai Appliance Repair Forum.

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