--- title: "Sealed system repair" description: "Sub-Zero sealed system repair — refrigerant circuit work, where the diagnosis matters more than the part." url: "https://subzeromiami.support/services/sealed-system-repair/" date_modified: "2026-08-18" Appliance type: "Built-in refrigerators, Freezers, Outdoor refrigeration, Undercounter & drawers, Wine storage" --- # Sealed system repair Service # Sub-Zero sealed system repair Refrigerant circuit work, where the diagnosis matters more than the part. A cabinet that cools unevenly, frosts in one zone or runs warm on one side often points here rather than at the control board. - **From $95** diagnostic, credited to the repair - **59** cities and neighborhoods covered - **OEM** parts available on order - **In writing** the price, before anything is opened ## Book a diagnostic visit Your model number and a line about what it is doing is enough to get started. Your details stay private. No spam, ever. Before you read on ## What this job costs and how it is agreed A starting figure, not a quote. What moves it is the model, how the unit is built in and which part it needs — settled after the on-site diagnostic. Starts at from $1,200 After a diagnostic from $95, which comes off the bill when you go ahead. or call [(305) 570-1472](tel:+13055701472) Diagnostic From $95, credited to the repair The price In writing, before anything is opened Warranty On the labor we performed On the visit ## How this visit actually goes The same order every time, so nothing is opened and nothing is charged before you have seen the figure and said yes. - 01 Everything cheaper, ruled out A cabinet running warm is a condenser, a fan, a gasket or a defrost circuit long before it is the sealed system. We rule those out before opening a refrigerant circuit. ### Everything cheaper, ruled out A cabinet running warm is a condenser, a fan, a gasket or a defrost circuit long before it is the sealed system. We rule those out before opening a refrigerant circuit. - 02 The leak, located Electronic detection and a pressure test find where the charge is going. A system recharged without finding the leak is a repair that fails again in a season. ### The leak, located Electronic detection and a pressure test find where the charge is going. A system recharged without finding the leak is a repair that fails again in a season. - 03 Recover, repair, replace the drier Refrigerant is recovered rather than vented, the line or joint is repaired, and the filter drier is replaced — it has been holding moisture since the leak began. ### Recover, repair, replace the drier Refrigerant is recovered rather than vented, the line or joint is repaired, and the filter drier is replaced — it has been holding moisture since the leak began. - 04 Verified back to set point The cabinet is pulled down and held at its set point under load before we leave. A sealed system repair that has not been checked under load is not finished. ### Verified back to set point The cabinet is pulled down and held at its set point under load before we leave. A sealed system repair that has not been checked under load is not finished. The money ## What this usually costs in South Florida The starting figure, the range the market quotes around it, and what pushes a job to either end. - Sealed system repair cost Refrigerant circuit work, where the diagnosis matters more than the part. A cabinet that cools unevenly, frosts in one zone or runs warm on one side often points here rather than at the control board. Leak detection and refrigerant recovery are part of the job A dual-refrigeration cabinet has two systems, priced separately Verified back to set point before we leave [ See the cost range ](https://subzeromiami.support/repair-cost/sealed-system-repair/) ### Sealed system repair cost - Leak detection and refrigerant recovery are part of the job - A dual-refrigeration cabinet has two systems, priced separately - Verified back to set point before we leave Applies to ## The Sub-Zero units we carry this work out on - Classic · Designer · PRO Sub-Zero refrigerator repair in Miami Columns, over-and-under, French door and side-by-side, from 30″ to 48″. These are built into your cabinetry and cannot simply be rolled out, so we plan the access before we arrive rather than discovering it in your kitchen. Not cooling, or cooling unevenly Dual refrigeration: one side warm Sealed system and compressor failures [ Refrigerator repair ](https://subzeromiami.support/appliances/refrigerator/) Classic · Designer · PRO ### Sub-Zero refrigerator repair in Miami Columns, over-and-under, French door and side-by-side, from 30″ to 48″. These are built into your cabinetry and cannot simply be rolled out, so we plan the access before we arrive rather than discovering it in your kitchen. - Not cooling, or cooling unevenly - Dual refrigeration: one side warm - Sealed system and compressor failures - Column & over-and-under Sub-Zero freezer repair in Miami Column freezers and freezer sections that frost over, run warm, or never quite hold their set point. Heavy frost build-up Defrost heater and thermistor failures Door and gasket sealing [ Freezer repair ](https://subzeromiami.support/appliances/freezer/) Column & over-and-under ### Sub-Zero freezer repair in Miami Column freezers and freezer sections that frost over, run warm, or never quite hold their set point. - Heavy frost build-up - Defrost heater and thermistor failures - Door and gasket sealing - Single & multi-zone Sub-Zero wine cooler repair in Miami A wine cabinet tends to fail quietly. It drifts a couple of degrees and says nothing, and in a market full of second homes that often goes unnoticed until the collection has paid for it. If a zone is reading off, it is worth looking at early. A zone drifting off its set temperature Humidity control and vibration Door seals, glass heaters and lighting [ Wine cooler repair ](https://subzeromiami.support/appliances/wine-storage/) Single & multi-zone ### Sub-Zero wine cooler repair in Miami A wine cabinet tends to fail quietly. It drifts a couple of degrees and says nothing, and in a market full of second homes that often goes unnoticed until the collection has paid for it. If a zone is reading off, it is worth looking at early. - A zone drifting off its set temperature - Humidity control and vibration - Door seals, glass heaters and lighting - Drawers & beverage centers Sub-Zero undercounter refrigerator repair in Miami Refrigerator drawers and beverage centers built into islands and bars. Drawer units running warm Control and display problems Condenser access in tight cabinetry [ Undercounter repair ](https://subzeromiami.support/appliances/undercounter/) Drawers & beverage centers ### Sub-Zero undercounter refrigerator repair in Miami Refrigerator drawers and beverage centers built into islands and bars. - Drawer units running warm - Control and display problems - Condenser access in tight cabinetry - Heat · Salt · Storms Sub-Zero outdoor refrigerator repair in Miami Outdoor refrigerators and ice makers — the equipment this climate is hardest on. Heat-stressed sealed systems Salt-air corrosion on coils Trouble restarting after a storm [ Outdoor unit repair ](https://subzeromiami.support/appliances/outdoor-refrigeration/) Heat · Salt · Storms ### Sub-Zero outdoor refrigerator repair in Miami Outdoor refrigerators and ice makers — the equipment this climate is hardest on. - Heat-stressed sealed systems - Salt-air corrosion on coils - Trouble restarting after a storm In more detail ## About Sub-Zero sealed system repair ### What the sealed system actually is The compressor, condenser, evaporator and the refrigerant circuit joining them. It is a closed system, which is why a leak in it does not announce itself the way a broken part does: the unit keeps running and simply stops holding temperature. Diagnosis matters more here than anywhere else on this list, because the wrong call means opening a circuit that did not need opening. ### When a symptom points here - A cabinet that cools unevenly, or holds temperature at night and not by day - One zone frosting while another runs warm - A dual-refrigeration cabinet where one side is fine and the other is not — two systems, one of them in trouble - A compressor running far longer than it used to for the same result ### What the work involves Leak detection, refrigerant recovery, repairs to the filter drier and lines, then evacuation and a correct charge — and the unit run back to its set point before we leave. It is a job measured in hours rather than minutes, which is part of why it starts where it does. This article is based on: - Official manufacturer documentation - Internal repair procedures - Technician repair history - Company quality standards Before you book ## Questions about Sub-Zero sealed system repair You usually do not, and that is the point of diagnosing first. A cabinet running warm can be a condenser, a fan, a gasket or a defrost circuit long before it is the sealed system — we rule those out before opening a refrigerant circuit. Built-in parts cost more and the access is slower. A unit fitted into cabinetry has to be reached before any of the work starts, and the figures published online are mostly for freestanding refrigerators. Not automatically. Dual-refrigeration cabinets are priced per system, and if only one side is in trouble that is the side we work on. We run it back to its set point and verify it before leaving. A sealed system repair that has not been checked under load is not finished. Where we do it ## Across Miami-Dade, Broward, and Palm Beach Same terms everywhere we go: an on-site diagnostic first, the price agreed in writing, and the exact figure confirmed once we have seen the unit. ### [ Miami-Dade ](https://subzeromiami.support/service-area/miami-dade/) - [Aventura](https://subzeromiami.support/service-area/miami-dade/aventura/) - [Bal Harbour](https://subzeromiami.support/service-area/miami-dade/bal-harbour/) - [Bay Harbor Islands](https://subzeromiami.support/service-area/miami-dade/bay-harbor-islands/) - [Biscayne Park](https://subzeromiami.support/service-area/miami-dade/biscayne-park/) - [Coral Gables](https://subzeromiami.support/service-area/miami-dade/coral-gables/) - [Doral](https://subzeromiami.support/service-area/miami-dade/doral/) - [ 15 more places ](https://subzeromiami.support/service-area/miami-dade/) ### [ Broward ](https://subzeromiami.support/service-area/broward/) - [Cooper City](https://subzeromiami.support/service-area/broward/cooper-city/) - [Coral Springs](https://subzeromiami.support/service-area/broward/coral-springs/) - [Fort Lauderdale](https://subzeromiami.support/service-area/broward/fort-lauderdale/) - [Hallandale Beach](https://subzeromiami.support/service-area/broward/hallandale-beach/) - [Hillsboro Beach](https://subzeromiami.support/service-area/broward/hillsboro-beach/) - [Hollywood](https://subzeromiami.support/service-area/broward/hollywood/) - [ 5 more places ](https://subzeromiami.support/service-area/broward/) ### [ Palm Beach ](https://subzeromiami.support/service-area/palm-beach/) - [Boca Raton](https://subzeromiami.support/service-area/palm-beach/boca-raton/) - [Delray Beach](https://subzeromiami.support/service-area/palm-beach/delray-beach/) - [Highland Beach](https://subzeromiami.support/service-area/palm-beach/highland-beach/) - [Jupiter](https://subzeromiami.support/service-area/palm-beach/jupiter/) - [Palm Beach Gardens](https://subzeromiami.support/service-area/palm-beach/palm-beach-gardens/) - [ 2 more places ](https://subzeromiami.support/service-area/palm-beach/) Neighborhoods people ask for by name - [Brickell](https://subzeromiami.support/service-area/miami-dade/miami/brickell/) - [Coconut Grove](https://subzeromiami.support/service-area/miami-dade/miami/coconut-grove/) - [Cocoplum](https://subzeromiami.support/service-area/miami-dade/coral-gables/cocoplum/) - [Design District](https://subzeromiami.support/service-area/miami-dade/miami/design-district/) - [Gables Estates](https://subzeromiami.support/service-area/miami-dade/coral-gables/gables-estates/) - [Old Cutler](https://subzeromiami.support/service-area/miami-dade/old-cutler/) - [South of Fifth (SoFi)](https://subzeromiami.support/service-area/miami-dade/miami-beach/south-of-fifth/) - [Star Island](https://subzeromiami.support/service-area/miami-dade/miami-beach/star-island/) - [Coral Ridge](https://subzeromiami.support/service-area/broward/fort-lauderdale/coral-ridge/) - [Harbor Beach](https://subzeromiami.support/service-area/broward/fort-lauderdale/harbor-beach/) - [Harbor Islands](https://subzeromiami.support/service-area/broward/hollywood/harbor-islands/) - [Las Olas](https://subzeromiami.support/service-area/broward/fort-lauderdale/las-olas/) - [Rio Vista](https://subzeromiami.support/service-area/broward/fort-lauderdale/rio-vista/) - [Seven Isles](https://subzeromiami.support/service-area/broward/fort-lauderdale/seven-isles/) - [The Landings](https://subzeromiami.support/service-area/broward/fort-lauderdale/the-landings/) - [Admirals Cove](https://subzeromiami.support/service-area/palm-beach/jupiter/admirals-cove/) - [BallenIsles](https://subzeromiami.support/service-area/palm-beach/palm-beach-gardens/ballenisles/) - [Mirasol](https://subzeromiami.support/service-area/palm-beach/palm-beach-gardens/mirasol/) - [Royal Palm Yacht & Country Club](https://subzeromiami.support/service-area/palm-beach/boca-raton/royal-palm-yacht-and-country-club/) ## Tell us the model number and what it is doing. --- **[Read full article: Sealed system repair](https://subzeromiami.support/services/sealed-system-repair/)**