What is going on
A Sub-Zero freezer rarely fails loudly. It drifts. Ice cream goes soft in the door, frost begins creeping along the back wall, and one morning the ice cubes are cloudy and shrunken. Each of those is the freezer telling you a specific component has started to fail, and each has a proper factory repair. Onyx technicians restore Sub-Zero freezers across Los Angeles every day, usually in a single visit.
On most built in Sub-Zeros the freezer runs its own sealed system, separate from the refrigerator, with its own compressor, evaporator, and electronically scheduled defrost. That is why a failing freezer often sits beside a perfectly healthy refrigerator, and why the diagnosis has to be made on the freezer's own circuit rather than by generalist trial and error. We test that circuit directly, read the control board's fault history, and repair what actually failed.
From full size freezer columns in Beverly Hills to drawer units in a Manhattan Beach kitchen, the discipline is identical: white glove home protection, genuine Sub-Zero OEM parts, and a written quote that does not change once the panels are off.
The usual suspects
What takes a Sub-Zero freezer down.
The defrost system
The most common culprit. A failed defrost heater, sensor, or control leaves frost swallowing the evaporator until airflow dies. We test each defrost component electronically and replace the one that failed, not the whole assembly on spec.
The evaporator fan
When the fan that circulates cold air weakens or stops, the compartment warms while the compressor runs on. Grinding or clicking from the freezer often announces it. Restored with genuine OEM motors.
The sealed system
A weak compressor or a slow refrigerant leak shows up first in the freezer, where the thermal margin is thinnest. Pressures tested, the fault located, the system restored to factory specification.
Door seal and gasket wear
A gasket that no longer seats lets humid air in, and that humidity becomes frost. If you see ice concentrated near the door, the gasket is the first suspect. We replace it and correct the door geometry.
Ice maker faults
The freezer's ice maker fails in its own ways: frozen fill tubes, tired inlet valves, harvest faults. All diagnosed and repaired in the same visit.
Freezer faults compound quietly: frost strains the fan, the strained fan masks the defrost fault, and by the time the compartment warms, three symptoms are tangled together. A factory trained diagnosis pulls them apart in one visit, with genuine parts on the van. One quote, one price, guaranteed repair, no supplemental estimates.
The freezer is on a clock
Frozen goods forgive less than the refrigerator does
A full freezer holds temperature for a day or more with the door closed, but every opening costs you margin. Keep the door shut and call. We answer daily from 7am to 7pm, and freezer failures are scheduled with the same-day priority a warming Sub-Zero deserves.
Why Onyx
The care your kitchen deserves.
Factory trained specialists
Vetted, uniformed technicians who work on Sub-Zero and Wolf and nothing else.
Genuine factory parts
Only Sub-Zero and Wolf OEM components, sourced direct. No aftermarket substitutes.
White glove home protection
Floors, stone, and cabinetry are draped and protected before a single panel comes off.
One Quote. One Price.
Guaranteed repair with no supplemental estimates. The number we put in writing is the number on your invoice.
Concierge scheduling
One point of contact, arrival windows kept, and updates by text or call, whichever you prefer.
Fully bonded and insured
Comprehensive coverage on every visit. Documentation ready on request.
Questions, answered
Before you call.
My freezer is frosting heavily. Is that serious?
It is the freezer asking for attention. Heavy frost usually means a defrost component or door gasket has failed, and left alone it will eventually stop the compartment cooling. Repaired early, it is a straightforward, single visit fix.
The refrigerator side works. Can just the freezer fail?
Yes, and it is common. Most built in Sub-Zeros run two independent sealed systems, so the freezer can lose its compressor, fan, or defrost cycle while the refrigerator carries on perfectly.
How fast can someone reach us?
Same day or next day across Los Angeles and Southern California, with arrival windows that are kept.
What is the guarantee?
One quote, one price, guaranteed repair, with no supplemental estimates, and the 3 Year Onyx Warranty on parts and labor, in writing.
Do you service freezer drawers and columns as well?
All of them: full size columns, over-under built ins, PRO units, and undercounter freezer drawers, with genuine Sub-Zero OEM parts.
The Onyx guarantee
The 3 Year Onyx Warranty, parts and labor, in writing.
One Quote. One Price. Guaranteed Repair. No Supplemental Estimates. And 24 years on luxury appliances behind every visit.
Other faults we cover
Something else acting up?
See every fault we fix on Sub-Zero and Wolf.
Same day service · Los Angeles & Southern California
Your peace of mind is one call away.
One number, and it is handled, from diagnosis to a kitchen that simply works again.
One Quote. One Price. Guaranteed Repair. No Supplemental Estimates.