Sub-Zero Ice Maker Leaking or Overflowing
Ice Maker Leaking or Overflowing is usually one of a small number of specific, repairable causes — here's what to check and when it's worth calling a professional.
Common Causes
The hardest water in the Bay Area
Contra Costa Water District delivers around 7.2 grains per gallon in Concord, several times EBMUD's supply, and a valve held off its seat by deposit weeps continuously.
A clogged defrost drain
Melted frost backs up and overflows into the cabinet or onto the floor instead of draining away normally.
A worn or torn door gasket
Lets humid air in that condenses inside the cabinet or around the door frame.
Local conditions that matter here
Contra Costa Water District delivers around 7.2 grains per gallon in Concord, the hardest supply in the Bay Area network and several times EBMUD's 1 to 7 on the other side of the hills. A descaling routine a coastal kitchen can skip is not optional out here.
What You Can Check Yourself
Parts That Most Likely Need Replacing
Based on symptoms like this, these are the components our technicians check first. The exact part depends on your model and what we find during diagnosis.
In and around San Ramon
San Ramon — Almost entirely built since the 1980s, with Dougherty Valley newer still, so the appliances are current and the failures are thermal rather than structural. We also cover Alamo, Blackhawk, Camino Tassajara across San Ramon Valley.
ZIP codes we cover in San Ramon: 94582, 94583
Most cases like this are fine to schedule within a day or two, though it's worth having looked at before it gets worse. If you're seeing a code on the display alongside this issue, our Sub-Zero error code guide can help narrow down the cause before we arrive. Either way, our repair service covers same-day diagnosis and a flat-rate quote before any work begins.
Common Questions About Ice Maker Leaking or Overflowing
Can I keep using my Sub-Zero appliance while this happens?
Will ice maker leaking or overflowing go away on its own?
How much does this repair typically cost?
How long does a typical repair visit take?
Do you offer a warranty on the repair?
Do you service Sub-Zero appliances in my area?
Still having this issue?
Same-day diagnosis, genuine OEM-compatible parts, warranty of up to 1 year.
*SubZero Repair Walnut Creek is an independent repair company and is not affiliated in any way with Sub-Zero, Inc., Wolf Appliance, Inc., or any of their distributors. We are not a factory service provider and specialize exclusively in out-of-warranty appliance repairs.