The short answer
An ice maker that has never produced anything is almost always a water connection that was never completed. Check that the ice maker is switched on, the valve is open and the line is seated, before anything else is considered.
What you actually see and hear
- The mould is bone dry and always has been — No water has ever arrived. This is an installation question.
- The ice maker arm is up, or the switch is off — Many cabinets ship with the ice maker disabled and it is easy to miss.
- Water at the connection behind the cabinet — A fitting not properly seated - fix that before anything else.
- Ice made for a day and then stopped — A partly open valve or a line that has kinked against the wall.
- NEAR MISS - the first few batches look cloudy — Normal. New lines and filters need flushing through.
Causes, most likely first on this machine
- Ice maker switched off or arm raised — First, because most cabinets ship that way and the manual step is easy to skip.
- Shut-off valve closed or only part open — Second. A valve fitted during installation and never fully opened produces exactly this.
- Supply line not properly seated or kinked behind the cabinet — Third. A line pushed on rather than seated leaks; a line crushed by pushing the cabinet back restricts.
- Water filter not installed or still bagged — Fourth. Some cabinets need the filter fitted and flushed before the ice maker will work.
- Freezer not yet at temperature — Fifth, and common in the first days: a freezer holds food safely at zero degrees Fahrenheit or below, and an ice maker needs comparable cold to cycle.
- Inlet valve or module fault — Last, and on a new appliance it is a seller matter rather than a repair.
Check in this order, and why
- Check the ice maker switch and the feeler arm — Free, instant, and the most common answer on a new installation.
- Trace the line to the shut-off valve and confirm it is fully open — Second most common, and just as free.
- Look at the connection behind the cabinet for damp or a kink — A leak here is more urgent than the missing ice.
- Put a thermometer in the freezer — A cabinet still pulling down will not make ice yet.
What an owner can safely check
- Switch the ice maker on and lower the feeler arm — Check the manual - many cabinets ship with it disabled.
About 5 min
- Open the shut-off valve fully and check the line is seated at both ends — Dry the fitting and watch it for a few minutes.
Tools: torch, tissueAbout 20 min
- Fit and flush the water filter if the cabinet takes one — Run several containers through before expecting good ice.
Tools: replacement filterAbout 25 min
- Straighten the supply line so the cabinet does not crush it against the wall — Leave a loop of slack behind the cabinet.
About 15 min
- Give the freezer a full day at temperature before judging production — Zero degrees Fahrenheit or below is what the maker needs.
Tools: thermometerAbout 1440 min
- STOP HERE if the connection leaks or the mould stays dry with the valve open — Report it to the seller rather than working on the valve.
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. A freight-delivered cabinet should be stood upright and left to settle before it is switched on for the first time. The compressor and relay at the back stay live until the unit is unplugged, and the defrost heater on a frost-free cabinet sits behind the freezer rear panel - never chip ice with anything metal.
When to call a technician
Contact the seller when water demonstrably reaches the cabinet, the freezer is at temperature and the mould still stays dry - on a recently delivered appliance that is theirs to resolve. Call a plumber instead for a shut-off valve that will not open or a supply line that was poorly fitted, because that part of the job is plumbing rather than appliance work. Deal with any damp at the connection first: a weeping fitting behind a heavy cabinet does real damage while you wait.
Nearest pages of this class
What this page does not cover
This page is written for the freight-delivered full-size 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: compressor and fan part numbers, thermostat ranges, door reversal instructions and shelf dimensions, 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.
