The short answer
On the BBB family an ice fault is usually a water-supply or temperature problem rather than a failed ice module, and the split between the two decides everything. That reorders the brand-generic page, which starts at the module itself.
What you observe
- No ice at all and a dry mould — Water is not arriving: supply, valve or a frozen fill tube.
- Mould fills but the ice never releases — A temperature or harvest fault rather than a supply fault.
- Ice production stopped after a filter change — Air in the line or a filter not seated home, and it clears once the line is purged.
- Cubes fused into a single block in the bin — Slow production and repeated partial melting, which points at compartment temperature.
- NEAR MISS - the whole cabinet is warm — Fix the cooling fault first; ice production is the first thing to stop when a cabinet warms.
Causes, most likely first on BBB
- Water supply: stop tap, line or a frozen fill tube — Ranked first on the BBB family: these installations have a long supply run behind a built-in housing, where the stop tap is easy to leave part closed. Every model code in the table above shares the same air path, which is why this ranks above the sealed system rather than below it. What moves against the brand-generic order is lower down: freezer compartment not cold enough sits above ice module, fill valve or the harvest mechanism here, because this family is a single build with fixed access points.
- Water filter overdue or restricting — Second: a filter behind a built-in grille is out of sight and routinely forgotten.
- Freezer compartment not cold enough — Third: a tall cabinet can be cold at one end and marginal at the other, so the ice module sees a different temperature from the food.
- Ice module, fill valve or the harvest mechanism — Fourth: the valve is at the back of the housing and is a service item on a built-in cabinet.
- Arm, switch or the ice-off setting — Last: a control lock or a setting left off during a service visit produces a perfect no-ice fault.
Check in this order, and why
- Check the arm or the ice-off setting first — It takes seconds and explains a total no-ice with nothing broken.
- Purge several litres through the dispenser where one is fitted — It clears air after a filter change, which is the commonest post-service complaint.
- Look at the mould: is it dry or full? — This single observation splits supply faults from freezing and harvest faults.
- Check the compartment temperature before blaming the module — A freezer holds food safely at 0 °F (−18 °C) or below; above that, no module will keep up.
Before you open anything
Safety
Isolate at the breaker before any panel comes off, and leave the sealed system alone entirely: refrigerant work is licensed work and the tools for it are not owner tools.
When to call a technician
Taps, filters and the arm setting are owner work. Call when the fill tube has frozen repeatedly, when the valve is suspect, or when the module has to come out, because all three sit behind fixed panels on this family.
Other BBB pages
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
