Sub-Zero UC-15I REPLACE FILTER lit red
On the UC-15I, REPLACE FILTER lights red after 8,000 ice making cycles.
Mon–Sat, 8am–8pm
- Mode, not a failure
- No repair needed
- Source: Sub-Zero
Book a visit
Three short steps, about a minute.
or call (844) 773-0701
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What REPLACE FILTER
actually means.
On the UC-15I, REPLACE FILTER lights red after 8,000 ice making cycles. The guide also recommends a new filter every six months or after a long shutdown, whichever comes first.
Sub-Zero ice maker display
What to do when REPLACE FILTER shows on the ice makerKind of codeMode, not a failure
Something the ice maker was switched into, often without anyone noticing, rather than something that broke: ice turned off from the panel or by the wire arm lifted while reaching into the bin, a control lock, a Sabbath setting, a cleaning cycle still running, a reminder that the water filter is due. No part has worn out, and the ice maker's own buttons or arm put it right.
Usually leads toNo repair
Turn the unit off with POWER and scoop the ice out of the bin.
Shows up asIce Tastes or Smells Bad
The ice tastes bad or smells stale, musty, of plastic or of whatever else is in the freezer, even though a glass of tap water tastes fine.
MakeSub-Zero
Sub-Zero ice maker service, for ice makers in built-in units and those under the counter.
SourceSub-Zero UC-15I undercounter ice maker Use & Care Guide (subzero-wolf.com PDF)
Sub-Zero UC-15I undercounter ice makers with the built-in filter.
Before you book,
in this order.
Each step comes from Sub-Zero's own guidance for REPLACE FILTER on its ice makers. Follow it to the end: the last card says whether this is a visit.
Turn the unit off with POWER and scoop the ice out of the bin.
Turn the old filter a quarter turn counterclockwise, fit the new one a quarter turn clockwise, then run the unit for three minutes, switch it off and on.
Touch and hold CLEAN for 6 seconds to reset the reminder; book a visit if ice making stays poor with a fresh filter.
Cleared?
The ice maker is filling and dropping cubes again and no part was needed. If the same code returns during the next harvest, or water shows up on the floor again, book it as a new problem.
What not to do
REPLACE FILTER is a maintenance reminder, not a sign that anything has failed. The unit keeps making ice while it is lit.
What you may
notice with it.
The ice maker problems REPLACE FILTER tends to arrive with. Answer these at the ice maker before anyone is booked.
All problems
No repair indicated
Nothing to repair.
Something the ice maker was switched into, often without anyone noticing, rather than something that broke: ice turned off from the panel or by the wire arm lifted while reaching into the bin, a control lock, a Sabbath setting, a cleaning cycle still running, a reminder that the water filter is due. No part has worn out, and the ice maker's own buttons or arm put it right.
Sub-Zero
ice makers.
Sub-Zero ice maker service, for ice makers in built-in units and those under the counter.
Sub-Zero ice maker repairMore Sub-Zero codes
All 15 Sub-Zero codesMode, not a failure on other makes
Door ice maker
The ice maker that feeds the dispenser on the outside of a door: tucked into an insulated box in the left door of a French door model, or at the top of the freezer side of a side-by-side, with a chute and an auger carrying cubes to your glass.
Freezer ice maker
The ice maker that sits inside the freezer compartment itself, a tray that twists or a mold with a heater and an ejector, dropping cubes into a bin or drawer you open by hand, with no dispenser on the door.
Undercounter ice maker
A built-in residential ice maker that lives under a kitchen, bar or basement counter, making clear cubes or chewable nugget ice on its own cooling system, with a water line in and a gravity drain or a small drain pump out.
In Sub-Zero's own words
When the unit completes 8000 ice making cycles, “REPLACE FILTER” will illuminate red
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Sub-Zero UC-15I undercounter ice makers with the built-in filter.
Sub-Zero REPLACE FILTER ice maker repair,
where we come out.
The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about REPLACE FILTER.
Can I clear REPLACE FILTER myself?
Do I have to shut off the water to change the Sub-Zero UC-15I filter?
I fitted a new filter in my Sub-Zero UC-15I, so why is REPLACE FILTER still red?
Can an overdue filter make a Sub-Zero undercounter ice maker slow?
Back to your everyday
Still showing REPLACE FILTER?
Book with the code or the blink pattern written exactly as the ice maker shows it, the full model number, and whether there is any water on the floor — when there is a code, that is where the diagnosis starts.