The short answer
On the Caf S family an ice maker that has stopped is usually a water-side fault rather than a failed module: a closed shutoff, a clogged filter, a frozen fill tube or a valve that no longer opens. With seven model tags in the matrix below, this family covers several passes of the same platform, and a cause that is a running change on one group can be absent on another. A freezer holds food safely at 0 °F (−18 °C) or below, and the harvest cycle needs that same cold — a freezer running warm will leave a perfectly healthy ice maker idle.
What you can observe on these models
- A frost plug at the end of the fill tube — The visible signature of a fill that overshot or a tube that lost its alignment; the next fill freezes on top of the last.
- Ice production stopped after a filter change — An unseated cartridge or an aftermarket filter that does not match the head restricts flow immediately.
- The bail arm is in the raised position — On arm-equipped models this is the off switch, and it is knocked up by a shifted bin more often than anyone expects.
- NEAR MISS — water leaking from the dispenser front — That is a water-leak fault rather than a production fault, and it belongs on the leak page.
Causes, most likely first on this family
- Bail arm raised or the ice maker switched off — Ranked first: it is the single most common reason a healthy ice maker makes nothing at all.
- Filter past its life or an aftermarket cartridge that does not seat — Second: flow drops gradually with a tired cartridge and instantly with one that does not match the head, and both show as hollow cubes first.
- Frozen fill tube or an overfilled mould — Third because it is the failure that looks like a dead module from the front of the cabinet.
- Freezer running warmer than the harvest point — Fourth: check the freezer against 0 °F (−18 °C) before blaming the ice maker; slow cycles are the first sign of a cabinet losing its grip.
- Inlet valve or module failure — Last — a valve or module is a legitimate failure, just not the first one to assume.
Check in this order, and why
- Look into the mould before anything else — Dry means a water-side fault; full and frozen means a harvest fault. Nothing else in this list splits the tree so cleanly.
- Check the bail arm and the on-off control — On these models a raised arm stops production entirely and a shifted bin is enough to raise it.
- Run the dispenser and watch the water flow — A thin or slow stream is the filter or the supply, and it explains hollow cubes without any further work.
Before you open anything
Safety
Power off at the plug or the breaker before any panel comes off; a capacitor can hold a charge after the power is off. Close the water shutoff before disturbing the supply line or the filter head, and have a towel ready — the line stays under pressure until it is bled. Never run the ice maker with a hand near the ejector.
Models in the S family
Reference| Model number | Family key |
|---|---|
| S20F_5I-BI_V | caf:refrigerator:s |
| S20S_5I-BI_V | caf:refrigerator:s |
| S36C_5I-BI_R | caf:refrigerator:s |
| S42N_4I-BI_N | caf:refrigerator:s |
| S42P_7-BI_N | caf:refrigerator:s |
| S48N_4I-BI_N | caf:refrigerator:s |
| S48P_7-BI_N | caf:refrigerator:s |
When to call a technician
On the Caf S family the owner side covers everything upstream of the module: the arm, the shutoff, the filter, the line, the fill tube and the bin. Call when water reaches the mould, the freezer is at temperature, and it still will not harvest — that is a module or thermostat fault and it needs a meter to condemn honestly. Call sooner if the supply line is weeping at a fitting, since a slow drip behind a cabinet does damage long before anyone sees it.
Other faults covered for this family
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
