Repair · Ice
Ice maker repair: fill, harvest, or the water itself
Almost every ice maker fault is one of three things — it is not filling properly, it is not releasing what it froze, or the water going in is the problem — and the three look nothing like each other once you know what to look at.
Flat $95 service call · line answered 24/7
Fill
Cubes that come out hollow, small or half-formed
A short fill freezes into a thin, hollow or misshapen cube, and the cause is somewhere on the water path rather than in the freezer. The valve may be silting at the seat, the supply may be throttled at a shutoff nobody has touched in years, the line may be kinked behind the cabinet after the unit was last pulled out, or a filter at the end of its life may be strangling flow.
Out here the filter is the first thing to rule out, because so many houses are on private wells and well water loads a cartridge faster than the interval on the box assumes. It is a homeowner job, it costs the price of the part, and it removes the most common explanation before anybody charges for a diagnosis.
Harvest
Water goes in, ice never comes out
A mould sitting full of solid ice that never ejects is a harvest fault. The cycle needs a brief warming of the mould to release the cubes and then an ejector to sweep them into the bin, so a heater that has gone open circuit, a thermostat or sensor that never reaches its release point, or a motor no longer driving the ejector all end in the same picture: a full mould and an empty bin.
Cubes fused into one lump in the bin are the related fault and the diagnosis differs. Either the harvest is cycling repeatedly and dropping cubes with a film of water still on them, or the fill valve is weeping between cycles and topping the bin up with water that refreezes around whatever is already in there. Both are fixable; they are simply not the same repair, and the way to tell them apart is to empty the bin and watch what fills it.
Water
Cloudy ice, ice that tastes of the freezer, and the well problem
Cloudy cubes are usually dissolved air and mineral rather than a fault: water freezes from the outside in, and everything that will not fit into the ice crystal ends up in the middle as a white core. On town supply that is cosmetic. On the private wells most of Dover and Sherborn run on, heavy mineral is also what silts a valve and shortens the life of every filter downstream of it, so it stops being cosmetic and starts being the reason the machine keeps failing.
Ice that smells or tastes of the freezer is a different story again. Ice is porous and absorbs whatever is stored beside it, so old cubes in a bin nobody empties will take on the compartment. If the bin is emptied, washed and left to refill and the new ice tastes clean, nothing is broken; if it does not, the filter and the line are next.
Quick tests before booking
- Empty the bin completely, then judge the next batch rather than the ice that has been sitting there.
- Time how long a batch takes to arrive, and note whether cubes are full-size but few, or plentiful but small.
- Check the date on the filter and the shutoff at the supply, both of which are free to fix.
Sensing
A machine that has simply decided the bin is full
The last category catches people out because nothing is broken in the machine at all. Ice production is stopped by a bin-level sense — a mechanical arm on older units, an optical pair on newer ones — and both can be fooled. An arm can be knocked into the raised position by a bin being shoved back into place. An optical eye can be blocked by frost, a splash of milk from a shelf above, or a cube resting exactly where it should not.
The symptom is a unit in perfect health making no ice and reporting nothing wrong. It is worth looking before assuming a fault: clear the bin, wipe the sensor windows, make sure the arm swings freely, and give it a few hours.
Onward
Related
The service page for this repair, plus the two nearest neighbours.
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Sub-Zero ice maker repair — the service page
What gets measured on the visit, from fill volume to bin sensing.
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Freezer repair
If the ice stopped because the compartment is not cold enough, start here instead.
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Dover
Well water, filters and why ice is the first thing to notice out here.
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Notes
Longer working notes, including one on ice quality in Dover kitchens.
Reviews
After ice maker calls
4.9out of 5from 696 reviews
5 out of 5
The ice smelled of everything stored beside it. He cleaned the mould, replaced a split water line that was picking up odour, and sanitised the bin. It ran longer than he expected but he stuck with it.
Bridget E.Westwood
5 out of 5
Small cloudy cubes for months and nobody could tell me why. Supply pressure was low because a valve down in the basement was sitting half shut, which two other people had walked straight past. He opened it up, then stayed and verified output across a full cycle.
Nick A.Dover
5 out of 5
The whole bin had fused into one solid block. He traced it to a bin thermostat that had stopped calling for shutoff, and while he was in there he flushed the line that runs through the cold pantry wall.
Lorraine F.Dover
Talk to someone
Empty the bin, watch one batch, then tell us what arrived.
The flat $95 service call covers the trip and the full diagnosis, and comes off the total on an approved repair.
The one number on this site
What these repairs come to, before you ask
Flat $95 service call covering the visit and full diagnosis, credited against the repair once you approve it.
Typical all-in totals for the repairs that come up most often out here — parts and labour together, from the low end of a straightforward job to the high end of an awkward one. Which end of a band a particular unit lands on is what the visit establishes.
- Door gasket or seal replacement $270 – $770
- Evaporator or condenser fan motor $300 – $650
- Defrost heater, thermostat or sensor $310 – $720
- Ice maker, water valve or supply line $280 – $720
- Electronic control board $520 – $900
- Compressor or sealed-system repair $970 – $2,190
Against replacing it
$8,630 – $20,330
That is the appliance alone. Set the repair band beside it before deciding — on a built-in, the cabinetry usually decides the argument rather than the compressor.
Where those replacement figures come from
A comparable built-in refrigerator, appliance only — before delivery, installation, custom panels or cabinetry work. Undercounter and wine units sit below this band; a column replacement is usually two purchases rather than one.
Four things decide where inside a band a job lands:
- Which part failed A door gasket, an evaporator fan and a sealed-system component are three different orders of job. Until the fault is found, any number would be a guess.
- Whether the part is still made Current models are straightforward. Older units sometimes need a superseded part sourced, and that changes both the price and the timeline.
- How the unit is installed A panelled column in a run of cabinetry takes longer to get at than a freestanding unit with clearance on both sides. Access is real labour.
- What else is close to failing If a second component is visibly on the way out, you hear about it while the unit is open rather than on a second call.