Refrigerator Ice Buildup is usually one of a small number of specific, repairable causes — here's what to check and when it's worth calling a professional.
At 1 to 3 grains per gallon there is nothing to scale, so what fails here is the metal itself — pitting at the valve seat rather than a furred-up orifice.
Shows up as slow or stopped production, and is a plumbing-side issue rather than the ice-making mechanism itself.
The mechanical components that form and eject cubes wear out gradually.
Two in five homes here were built before 1940 — 40.7% against 12.0% nationally — and most of those kitchens were laid out before built-in refrigeration existed. A modern unit goes into a cabinet run that is short at the back, venting into a lightwell rather than out of the building. A condenser that cannot shed heat looks exactly like a failing sealed system, so the clearance and the discharge temperature get checked here before anything is condemned.
Based on symptoms like this, these are the components our technicians check first. The exact part depends on your model and what we find during diagnosis.
Larkspur — A small city of canyon cottages and post-war flats, with a good deal of the housing stock renovated well past the value of the original build. We also cover Ross, San Anselmo, Sleepy Hollow across Ross Valley.
ZIP codes we cover in Larkspur: 94904, 94939, 94977
Most cases like this are fine to schedule within a day or two, though it's worth having looked at before it gets worse. Our repair service covers same-day diagnosis and a flat-rate quote before any work begins.
Same-day diagnosis, genuine OEM-compatible parts, warranty of up to 1 year.
*SubZero Repair San Francisco is an independent repair company and is not affiliated in any way with Sub-Zero, Inc., Wolf Appliance, Inc., or any of their distributors. We are not a factory service provider and specialize exclusively in out-of-warranty appliance repairs.