The short answer
On an integrated cabinet the icemaker supply runs hidden through the joinery. Find the isolating valve in the neighbouring unit and check the pipe for kinks before suspecting the icemaker.
What you actually see and hear
- No ice at all and the mould is dry — No water arriving. A closed valve or a kinked pipe.
- It stopped after work was done in the kitchen — A valve closed during that work. Extremely common here.
- Hollow or partly formed cubes — Restricted flow, or a compartment running warm.
- Ice forming slowly — The freezer compartment is not cold enough.
- NEAR MISS - stale-tasting cubes after a holiday — Old ice, not a fault.
Causes, most likely first on this machine
- Isolating valve inside the adjacent unit closed — First on this layout. It is hidden, it gets turned off during other work, and it is free to reopen.
- Supply pipe kinked behind the housing — Second. Pushing an integrated cabinet home against its pipe is how this happens.
- Shut-off arm lifted or the icemaker switched off — Third, and the classic cause on any icemaker.
- Freezer compartment running warmer than zero degrees Fahrenheit — Fourth. The mould cannot freeze properly.
- Inlet valve or filter restricted — Fifth. Flow drops and the fill never completes.
- Icemaker module or thermostat — Last, and only once the water route is proven.
Check in this order, and why
- Open the neighbouring unit and find the isolating valve — The most likely cause on an integrated installation.
- Check the shut-off arm and any icemaker switch — Free and instant.
- Put a thermometer in the freezer compartment — Warmer than zero degrees Fahrenheit explains slow cubes.
- Ask whether any kitchen or plumbing work was done recently — It usually dates the fault exactly.
What an owner can safely check
- Find and fully open the isolating valve in the adjacent unit — Start here on any built-in cabinet.
Tools: torchAbout 20 min
- Lower the shut-off arm and clear anything stacked against it — Free, and it fixes a large share of stopped icemakers.
About 5 min
- Put a thermometer in the freezer compartment and read after a day — Zero degrees Fahrenheit or below is what the mould needs.
Tools: thermometerAbout 1440 min
- Look for a visible kink where the pipe enters the housing — Do not force the cabinet out to chase it.
Tools: torchAbout 20 min
- Discard the first batches after any work on the water side — Disturbed pipework always tastes of itself.
About 10 min
- STOP HERE before withdrawing the cabinet to trace the pipe or change the valve — Water plus live electrics in a confined housing.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel - a capacitor can hold a charge after the power is off. An integrated cabinet is usually fed from a socket inside the adjacent unit, so find and use that socket rather than guessing at the breaker, and confirm the appliance is dead before touching anything. Never remove the furniture door or the cabinet's fixings while the appliance is live, and never chip ice from the interior with a metal tool.
When to call a technician
Call when the isolating valve is open, the arm is down and the freezer compartment sits at zero degrees Fahrenheit or below but the mould stays dry - the restriction is then in the concealed pipe or at the inlet valve. Call promptly for any damp inside the units around the appliance, because a weeping fitting in a closed housing damages the joinery long before it reaches the floor where you would see it.
Nearest pages of this class
What this page does not cover
This page is written for the integrated refrigerator class, not for one family or model line. Where a brand- or model-specific page exists for your unit it is the more specific answer and it is linked above, so go there first if your machine is named. What is deliberately not here: fan and thermostat part numbers, hinge and slide kit references, cabinet aperture dimensions and refrigerant charge, all of which differ by family and belong on the page for that family.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
