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When a refrigerator makes no ice, ask first whether water is arriving, second whether the freezer is cold enough to freeze it, and only third whether the ice maker itself has failed. That order solves most cases before a panel comes off. On the RBM models the water path is common across the family, so the supply checks below hold for all of them even where the bin and the dispenser differ.
What you see in the bin
- Ice has fused into one lump in the bin — A solid lump in the bin is the record of ice that partly melted and refroze, which happens when production is slow or the freezer runs warm.
- The dispenser runs water but makes no ice — Water is in the cabinet, so the supply is good up to the dispenser and the problem is beyond that point.
- You can hear the valve buzz but nothing fills — A short buzz with nothing arriving means the valve is being told to open and water is not getting through — a frozen tube, a closed tap or a failed valve.
- NEAR MISS — No ice and the whole cabinet has gone warm — A warm cabinet with no ice is one fault, not two. Fix the temperature and the ice usually returns on its own.
Causes, most likely first
- A freezer that is not cold enough to freeze a cube on schedule — If ice production fell off gradually rather than stopping outright, this belongs high in your thinking. It goes first because every check below it assumes this one has already been cleared. That is the difference from the brand-wide order: on the RBM models a freezer that is not cold enough to freeze a cube on schedule moves ahead of no water reaching the refrigerator, because it is the faster of the two to confirm here.
- The ice maker is switched off or its shut-off arm is held up — It is the least glamorous cause on the list and it is responsible for a large share of calls. The fix costs nothing and takes a second.
- No water reaching the refrigerator — A closed house shut-off, a kinked line behind the machine or a supply valve never fully reopened after a move stops production instantly and completely.
- A frozen fill tube or a frozen supply line — Clearing the ice fixes it for a while; finding out why the water stalled long enough to freeze is what stops it returning.
What to check first, and why
- First — check what the freezer is actually holding — Check what the compartment is actually holding before blaming the ice maker: it is the most temperature-sensitive thing in the cabinet and the first to suffer. Each step confirms that water reaches one point further along the path, which is why working out of sequence tells you almost nothing.
- Second — check the ice maker is actually switched on — Look at the control or the shut-off arm and make sure nothing in the freezer is holding it in the stop position. It is the cheapest check on the machine and it ends a surprising number of investigations.
- Third — confirm water is reaching the refrigerator at all — Prove water reaches the cabinet at all. No water anywhere means the fault is upstream of everything inside, and nothing internal is worth checking yet.
- Fourth — look for ice in the fill tube above the mould — With the machine unplugged, look at the thin tube that feeds the mould. A plug of ice there explains a buzzing valve and an empty bin at the same time.
Before you open anything
Safety
Power off first, water off second. The ice maker is an electrical assembly sitting in a wet, cold compartment, and its harvest motor can turn without warning while the machine is plugged in. Do not force the shut-off arm past its stop, and do not chip ice out of the mould with a metal tool.
When this stops being a homeowner job
Book a visit once the supply, the filter, the arm and the freezer temperature have all been cleared. Say what you found in that order — it maps directly onto the parts a technician will bring.
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Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
