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Built-in refrigerator
Sub-Zero

Built-in · Column · Undercounter

Sub-Zero Refrigerator Repair in South Florida

Luxury Appliances Service repairs Sub-Zero refrigerators in Miami-Dade, Broward and Palm Beach counties, including warm Classic built-ins, leaking Designer columns and PRO refrigerators with unstable temperatures.

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A technician can come today or tomorrow, seven days a week · Calls answered 24/7 · $145 diagnostic per appliance, credited toward the repair

Our work

Our Sub-Zero repairs

Our Sub-Zero refrigerator repairs include refrigerators whose temperature kept changing or drifted, compartments that stayed warm or stopped cooling, a dispenser with no ice or water and ice building up inside; the fixes ranged from a new control board and filter-drier to a repaired refrigerant leak in a refrigerator drawer. We also repair Sub-Zero wine storage, such as a wine cooler freezing the lower shelf and undercounter wine storage that stayed warm.

Sub-Zero refrigerator repairs

Other Sub-Zero repairs

All Sub-Zero repair work

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Discuss the fault in your Sub-Zero refrigerator.

Reviews

Reviews from Sub-Zero owners

Read Sub-Zero owners’ accounts of service for built-in refrigerators, a freezer and wine storage, including the care taken around cabinetry during the work.

  • Yelp

    Our built-in Sub-Zero refrigerator started warming up just before we had family staying with us. The technician treated the unit carefully, isolated the issue, and laid out the options clearly. The repair was handled without damaging the surrounding cabinetry, which was a major concern. Everything is holding temperature again.

    Isabel D.Sub-Zero built-in refrigerator

  • Google

    This company is great. Made appointment, they showed up next day and diagnosed the issue. I have a sub Zero fridge. Ordered the part. Came in 3 days, Showed up installed part, filled with gas and that was it. Highly recommended.

    Thomas EvansSub-Zero refrigerator

  • Google

    Our Sub-Zero refrigerator in Miami Beach was warm on one side. Communication was excellent, the visit was careful and unhurried, and the refrigerator has maintained the correct temperature ever since.

    Elena CastilloSub-Zero refrigerator, Miami Beach

  • Google

    Needed to get my Sub-Zero freezer fixed. Scheduled an appointment online for later this week. Had a manager call me to reschedule for earlier as a time slot opened up. Great service! Freezer is now back working!

    Ilya VasilyevSub-Zero freezer

  • Yelp

    Our Sub-Zero wine cooler was running but not keeping the bottles at the selected temperature. The technician understood the built-in setup, protected the cabinetry, and diagnosed the airflow issue. After the repair, he monitored the temperature drop and explained what to watch over the next day.

    Zachary L.Sub-Zero wine cooler

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Models

Sub-Zero refrigerator repair for your series and format

We repair Sub-Zero built-in refrigerators, panel-ready columns, PRO units and undercounter drawers. If your refrigerator is warm, leaking or freezing fresh food, we check the affected compartment and explain the repair before work begins. Our repairs include built-in cooling faults and a refrigerator drawer that lost cooling.

Open built-in column refrigerator in a lived-in Miami kitchen
  • Sub-Zero Classic refrigerators

    We repair Sub-Zero Classic built-ins, including French-door refrigerator/freezers. If the fresh-food side is warm while the freezer stays cold, we check the refrigerator’s cooling system. Classic CL models range from 30 to 48 inches wide; book service for the compartment that needs help.

  • Sub-Zero Designer refrigerators

    We repair Sub-Zero Designer refrigerators hidden behind your cabinetry panels, including columns. For a warm compartment, recurring moisture or a poor door seal, we check cooling, drainage and door operation. Designer DET and DEC units are panel-ready; call about the fault in your fitted refrigerator.

  • Sub-Zero PRO refrigerators

    We repair Sub-Zero PRO refrigerators, including glass-door models and the earlier 648PRO. With separate refrigerator and freezer cooling systems, one compartment can need repair while the other stays cold. Tell us which side is warm or which message appears; we check that system and quote the repair.

  • Sub-Zero undercounter refrigerators and drawers

    We repair Sub-Zero undercounter refrigerators and fresh-food drawers that will not stay cold. One of our drawer repairs traced lost cooling to a refrigerant leak. Book refrigerator service for a warm fresh-food drawer; a drawer used for frozen food needs freezer service.

We also repair older Sub-Zero 500, 600 and 700 Series built-ins. Call about the problem so we can assess the repair and help you decide whether to keep the refrigerator already fitted to your kitchen.

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Book service for your Sub-Zero refrigerator, or call about the cooling problem you are seeing.

Common problems

Sub-Zero refrigerator problems: causes and repair

Common Sub-Zero refrigerator problems include a warm fresh-food side, food freezing, water under the unit, frost on the back wall or a message on the display. Sub-Zero uses two separate sealed systems, one for the refrigerator and one for the freezer, so a cold freezer next to a warm refrigerator still points to a refrigerator fault. Luxury Appliances Service tests the affected system and gives you the repair price before any work; sealed-system and internal electrical work stay with the technician.

Sub-Zero refrigerator not cooling

A Sub-Zero refrigerator that runs warm can have a dirty condenser, a fan that is not working properly, a temperature sensor or thermostat fault, a worn door seal, or a problem in its sealed cooling system.

Check first: Make sure the unit is on and set to 38°F; after it is switched on it needs 24 hours to cool. Sub-Zero calls for cleaning the condenser every 6–12 months; if yours is overdue, clean it. The grille is at the top on Classic (CL) units and at the bottom on Designer (DET, DEC) units.

When to call: The compartment is still warm 24 hours after these checks, or the freezer is cold while the refrigerator is warm. Our technician checks the fans, sensors and the refrigerator’s own sealed system and quotes the repair before any work; sealed-system work stays with the technician.

Sub-Zero refrigerator freezing food

Food freezing in the fresh-food compartment can start with a condenser that needs cleaning, which you can do yourself.

Check first: Clean the condenser if it has not been cleaned in the past six months.

When to call: Food keeps freezing after the condenser is clean. We check temperature control and cooling performance.

Sub-Zero refrigerator leaking water underneath

Water under a Sub-Zero can come from the home plumbing or from the refrigerator itself; the amount helps tell which.

Possible causes: A loose home plumbing connection; a failed water valve; a cracked or overfilled drain pan; moisture or condensation.

Check first: Note where the water collects and roughly how much. More than a pint under the unit points to the water valve or plumbing connections.

When to call: The leak comes back. Our technician traces the appliance-side leak and checks the valve and drain pan.

Sub-Zero refrigerator frost on the back wall

Frost that keeps returning on the back wall is not normal. The refrigerator section defrosts itself in normal use.

Possible causes: A faulty door gasket; air leaking in; an air circulation problem; a sealed-system issue; a clogged drain tube.

Check first: Make sure the door closes and seals fully; air leaking in can cause frost.

When to call: Frost keeps returning. We inspect the seal, airflow and drainage; sealed-system work stays with the technician.

Sub-Zero refrigerator temperature keeps changing

Changing display temperatures can have a simple cause you can fix or a fault in the sensors, controls or sealed system.

Possible causes: Food blocking airflow; a door ajar; a thermistor or thermostat; the control board; the sealed system.

Check first: Move food that blocks the airflow and make sure the door is fully closed.

When to call: The display keeps fluctuating. Our technician checks the temperature readings and cooling controls.

Sub-Zero refrigerator making an unfamiliar noise

A noisy Sub-Zero refrigerator can be operating normally or have a fan or ice problem.

Possible causes: A faulty fan blade or motor; ice build-up on the freezer fan; an obstruction from overfilling; normal operating sounds.

Check first: Look for stored items that obstruct the compartment. Leave fan access to the technician.

When to call: The sound persists or cooling is affected. We locate the noise and check the fan or cooling component.

Sub-Zero refrigerator noise near the compressor

Loud, new or increasing noise near the compressor, or noise with poor cooling, can start with a condenser that needs cleaning.

Check first: Clean the condenser, then check whether the noise and temperatures improve.

When to call: The noise or the temperature problem continues after cleaning. Our technician checks condenser airflow and cooling performance.

Sub-Zero refrigerator will not turn on

A Sub-Zero that will not start may simply be switched off; otherwise it can have an electrical-supply or control fault.

Possible causes: An electrical supply problem; a control-board fault; another electrical fault.

Check first: Look at the display: 0 FF or OFF means the unit is switched off. Turn it on with the operating controls for your model.

When to call: It will not restart. Our technician checks the supply and controls; internal electrical work stays with the technician.

Sub-Zero refrigerator condensation inside

Moisture inside a Sub-Zero can have a simple cause in how the shelves are loaded or in the room conditions, or an appliance fault.

Possible causes: Overloaded shelves blocking airflow; wet produce; high room temperature or humidity; an appliance fault.

Check first: Look for overloaded shelves and wet produce.

When to call: Moisture keeps returning. We check the door seal, airflow and operation.

Sub-Zero refrigerator has a persistent odor

A persistent odor can be a sign of a cooling, door-seal or drainage problem.

Possible causes: High temperatures; a cracked or torn door seal; a service error indicator; standing water in the drain pan; clogged drain tubes.

Check first: Check the displayed temperature and look for a torn seal or a service message.

When to call: The odor continues with any of these signs. Our technician checks cooling, the gasket and drainage.

Sub-Zero refrigerator door is hard to reopen

A Sub-Zero door can be hard to reopen right after closing while the pressure inside equalizes.

Check first: Wait 30 to 60 seconds after closing the door, then try again.

When to call: The door is still hard to open after that wait. We inspect the gasket and door operation and quote any repair.

Sub-Zero refrigerator struggling in a hot room

Indoor Sub-Zero units are designed for a room between 60 and 90°F; outside that range a refrigerator can struggle to hold temperature.

Check first: Check the temperature around the refrigerator.

When to call: It cannot hold temperature in a 60–90°F room. Our technician assesses cooling performance in its installed setting.

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Causes and owner checks follow Sub-Zero’s use-and-care and assistance information, checked in October 2026.

Error codes

Sub-Zero refrigerator error codes and display messages

A Sub-Zero code or a Service warning can come with poor cooling, a sensor fault or an ice-maker problem, and the same number means different things on different series. The meanings below follow Sub-Zero’s information for each series, checked in October 2026. Write down the full message for the service call; do not open electrical panels or work on the sealed cooling system. We check temperatures, airflow and the affected control circuit, then quote the repair.

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What does 10 r 01 mean on a Sub-Zero Classic (BI) refrigerator?
The refrigerator evaporator temperature sensor has a short circuit. A technician needs to test the sensor and its wiring.
What does 10 1 02 mean on a Sub-Zero Classic (BI) refrigerator?
The refrigerator’s temperature sensor is sending unstable readings. Arrange service so we can check the sensor and its connections and find why temperature control is unreliable.
What does 15 1 01 mean on a Sub-Zero Classic (BI) refrigerator?
The refrigerator relay is reported closed. A technician needs to check the relay and controls.
What does 15 2 00 mean on a Sub-Zero Classic (BI) refrigerator?
The freezer relay is reported open. A technician needs to check its control circuit.
What does 20 2 00 mean on a Sub-Zero Classic (BI) refrigerator?
The freezer defrost heater circuit is open, meaning its electrical path is interrupted. Arrange a technician’s defrost-system check.
What does 35 F 33 mean on a Sub-Zero Classic (BI) refrigerator?
The freezer evaporator fan speed setting is too low. A technician needs to check the fan control.
What does 40 1 40 mean on a Sub-Zero Classic (BI) refrigerator?
Excessive refrigerator run time. Check whether the door is fully closed. Arrange service if the code returns or the compartment stays warm; our technician checks cooling performance.
What does 40 2 40 mean on a Sub-Zero Classic (BI) refrigerator?
Excessive freezer run time. Check whether the door is fully closed. Arrange service if the code returns or the compartment stays warm; our technician checks cooling performance.
What does 44 0 01 mean on a Sub-Zero Classic (BI) refrigerator?
The glass-door heater has a short circuit. Arrange service for the heater circuit.
What does 45 1 00 mean on a Sub-Zero Classic (BI) refrigerator?
The refrigerator lighting circuit is open, meaning its electrical path is interrupted. Arrange service for the lighting circuit.
What does 95 1 00 mean on a Sub-Zero Classic (BI) refrigerator?
The control has detected a break in a circuit used to monitor the refrigerator. Arrange service; we check the circuit and connections for your model before quoting the repair.
What does H2 LO mean on a Sub-Zero Classic (BI) refrigerator?
A gallon of water was dispensed within 15 minutes, or the water valve was energized for 150 seconds. Record whether you were dispensing water when the message appeared. Book service if the warning returns during normal use; we check the water and dispenser controls.
What does L0 C mean on a Sub-Zero Classic (BI) refrigerator?
A control command was entered while the unit sensed a closed door. Note whether the door was open or closed when you used the controls. Arrange service if the message keeps appearing; we check the door sensing and controls.
What does 10 1 11 mean on a Sub-Zero Classic (CL) refrigerator?
The evaporator temperature sensor has a short circuit. A technician needs to test the sensor and its wiring.
What does 10 3 11 mean on a Sub-Zero Classic (CL) refrigerator?
The evaporator temperature sensor has a short circuit. A technician needs to test the sensor and its wiring.
What does 10 3 00 mean on a Sub-Zero Classic (CL) refrigerator?
The zone 3 evaporator temperature sensor circuit is open, meaning its electrical path is interrupted. Arrange a technician’s sensor check.
What does 15 4 00 mean on a Sub-Zero Classic (CL) refrigerator?
The defrost relay is reported open. A technician needs to check the defrost controls.
What does 20 4 50 mean on a Sub-Zero Classic (CL) refrigerator?
The defrost heater circuit is interrupted. Arrange service for the defrost system.
What does 40 2 40 mean on a Sub-Zero Classic (CL) refrigerator?
Excessive run time in zone 2. Check whether the door is fully closed. Arrange service if the code returns or the compartment stays warm; our technician checks cooling performance.
What does 40 9 40 mean on a Sub-Zero Classic (CL) refrigerator?
The dispenser has run excessively. Arrange service for its operating controls.
What does 45 1 01 mean on a Sub-Zero Classic (CL) refrigerator?
The lighting circuit has a short circuit. Arrange service for the lighting circuit.
What does 40 mean on a Sub-Zero 648PRO refrigerator?
Excessive compressor run time in the indicated zone. Check whether the door is fully closed. Arrange service if the code returns or the compartment stays warm; our technician checks cooling performance.
What does 10 1 11 mean on a Sub-Zero Designer (DET, DEC) refrigerator?
The evaporator temperature sensor has a short circuit. A technician needs to test the sensor and its wiring.
What does 15 4 00 mean on a Sub-Zero Designer (DET, DEC) refrigerator?
The defrost relay is reported open. A technician needs to check the defrost controls.
What does 40 9 40 mean on a Sub-Zero Designer (DET, DEC) refrigerator?
The dispenser has run excessively. Arrange service for its operating controls.
What does 45 1 01 mean on a Sub-Zero Designer (DET, DEC) refrigerator?
The lighting circuit has a short circuit. Arrange service for the lighting circuit.
What does 95 3 00 mean on a Sub-Zero PRO3650 and PRO4850 refrigerator?
The zone 3 door has been open for at least 20 minutes. Check the zone 3 door and close it fully. Arrange service if it will not close or seal, or the message continues after closing.
What does EC40 mean on a Sub-Zero 600, 648PRO and 700 Series refrigerator?
Excessive freezer compressor run time. An open door, cooling-system, fan or sensor issue may be involved. Check whether the door is fully closed. Arrange service if the code returns or the compartment stays warm; our technician checks cooling performance.
What does EC 05 mean on a Sub-Zero 600 and 700 Series refrigerator?
Repeated erratic refrigerator temperatures. Arrange service to check the temperature sensor and its readings.
What does EC 06 mean on a Sub-Zero 600 and 700 Series refrigerator?
The refrigerator evaporator temperature sensor is disconnected, shorted or reading erratically. Arrange service to check the temperature sensor and its readings.
What does 05 mean on a Sub-Zero 600 Series refrigerator?
The refrigerator cabinet temperature sensor is disconnected or shorted for at least 10 seconds, or temperatures are erratic. A technician needs to check the model’s instructions and sensor readings.
What does EC30 mean on a Sub-Zero 600 and 700 Series refrigerator?
The ice maker has stopped after its water valve was activated excessively. Arrange service for the ice maker’s water-valve controls.
What does 05 mean on a Sub-Zero Undercounter (UC) refrigerator?
The refrigerator-section temperature sensor has malfunctioned. A technician needs to test the sensor and its wiring.
What does 22 mean on a Sub-Zero Undercounter (UC) refrigerator?
The control receives no voltage feedback when defrost starts. A technician needs to check the defrost circuit; this is not an owner wiring check.
What does 50 mean on a Sub-Zero Undercounter (UC) refrigerator?
Excessive refrigerator compressor run time. Check whether the door is fully closed. Arrange service if the code returns or the compartment stays warm; our technician checks cooling performance.
What does EE mean on a Sub-Zero Undercounter (UC) refrigerator?
A temperature sensor is faulty: left-side EE indicates the freezer, right-side EE the refrigerator. Arrange service for the indicated compartment’s temperature sensor.
What does EC50 mean on a Sub-Zero refrigerator?
Excessive refrigerator compressor run time. Arrange refrigerator service if cooling is poor or the message continues; our technician checks why the compressor is running excessively.
What does Vacuum Condenser mean on a Sub-Zero refrigerator?
Cooling is inefficient or temperatures are too high; condenser dirt, a poor door seal or a unit fault may be involved. Clean the condenser. Arrange service if the message or cooling problem continues; we check condenser airflow and the door seal.
What does 0 FF mean on a Sub-Zero refrigerator?
The refrigerator is switched off. Use the operating controls for your model to turn it on. Arrange service if it will not restart.
What does OFF mean on a Sub-Zero refrigerator?
The refrigerator is switched off. Use the operating controls for your model to turn it on. Arrange service if it will not restart.
Stainless built-in refrigerator in a pale oak kitchen

Why clients choose us

Your Sub-Zero refrigerator repair: visit, diagnostic, parts, warranty

Luxury Appliances Service repairs Sub-Zero refrigerators in Miami-Dade, Broward and Palm Beach counties, seven days a week. The diagnostic is $145 per appliance and is credited toward the repair. We use original parts directly from the manufacturer, give you the price before any work and back the repair with a 90-day warranty on parts and labor. Calls are answered 24/7, and we speak Spanish.

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Repair or replace

Is your Sub-Zero refrigerator worth repairing?

Usually the deciding factor is the failed part, not the age. Sub-Zero says its refrigerators are tested to handle at least 20 years of everyday use, and a built-in unit is fitted to your cabinetry, so replacing it also means a new installation. Luxury Appliances Service gives you the repair price before any work, so you can compare it with a fully installed replacement.

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Can a damaged door seal be repaired without replacing the refrigerator?

Yes. A ripped, torn or cracked gasket needs replacement: the seal helps maintain cooling and prevent moisture problems. We inspect the gasket and door operation and quote the repair for your model.

How much is a Sub-Zero refrigerator diagnostic?

The diagnostic fee is $145 per appliance, credited toward the repair. You pay it on its own only if you decide not to repair. We give the repair price before any work, so you can compare it with replacing the refrigerator and its installation.

How often should a Sub-Zero refrigerator condenser be cleaned?

Every 6 to 12 months, as Sub-Zero calls for, and on models with air purification the filter is replaced when its indicator flashes or after about one year. A refrigerator that still runs warm, frosts up or shows a message after that needs a fault check; we quote the repair before any work.

FAQ

Sub-Zero refrigerator repair questions

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Why is my Sub-Zero refrigerator warm when the freezer is cold?
Sub-Zero uses separate sealed systems for the refrigerator and the freezer, so one can fail while the other keeps working. Likely causes are a refrigerator fan that is not working properly, a temperature sensor or thermostat fault, or a problem in the refrigerator’s own sealed system. We diagnose the fresh-food compartment’s fan, controls and cooling system and quote the repair before any work.
Should I manually defrost a refrigerator with recurring back-wall frost?
Sub-Zero refrigerator sections defrost automatically and should not need manual defrosting in normal use. Recurring frost calls for checking the seal, airflow, drain and cooling system. We repair the cause identified during the visit.
What temperature should my Sub-Zero refrigerator show?
On Sub-Zero units with electronic controls, set the refrigerator to 38°F (3°C) and the freezer to 0°F (−18°C), following your model’s instructions. If the refrigerator cannot hold its setting, arrange service for the affected compartment.
What does 05 mean on a Sub-Zero refrigerator?
On 600 Series units, 05 means the refrigerator cabinet temperature sensor is disconnected or shorted, or temperatures are erratic; on 600 and 700 Series units, EC 05 means repeated erratic refrigerator temperatures. Both need a sensor check; our technician tests the sensor and its readings for your model before quoting the repair.

Service area

Cities we serve for Sub-Zero refrigerator repair

Luxury Appliances Service visits homes for Sub-Zero refrigerator repair in Miami-Dade, Broward and Palm Beach counties. Our coverage includes Miami, Fort Lauderdale and Boca Raton. Check your address to arrange service for your built-in, column or undercounter refrigerator.

  • Waterfront home on Biscayne Bay with the Miami skyline in the distance
    Sub-Zero refrigerator repair in Miami-Dade County
    30 cities we serve
    • Miami
    • Miami Beach
    • Coral Gables
    • Key Biscayne
    • Fisher Island
    • Brickell
    • Coconut Grove
    • Pinecrest
    • Aventura
    • Sunny Isles Beach
    • Bal Harbour
    • Surfside
    • Palmetto Bay
    • Doral
    • Hialeah
    • Kendall
    • Westchester
    • Homestead
    • North Miami
    • North Miami Beach
    • Miami Gardens
    • Miami Lakes
    • Cutler Bay
    • South Miami
    • Miami Springs
    • Florida City
    • Opa-locka
    • Miami Shores
    • Sweetwater
    • Hialeah Gardens
  • Quiet Fort Lauderdale canal lined with homes and palms
    Sub-Zero refrigerator repair in Broward County
    25 cities we serve
    • Fort Lauderdale
    • Weston
    • Parkland
    • Hollywood
    • Lighthouse Point
    • Plantation
    • Coral Springs
    • Davie
    • Hallandale Beach
    • Wilton Manors
    • Pembroke Pines
    • Pompano Beach
    • Miramar
    • Sunrise
    • Tamarac
    • Margate
    • Coconut Creek
    • Deerfield Beach
    • Lauderhill
    • Oakland Park
    • Dania Beach
    • Cooper City
    • Lauderdale Lakes
    • North Lauderdale
    • West Park
  • Palm Beach estate with a manicured hedge and royal palms
    Sub-Zero refrigerator repair in Palm Beach County
    19 cities we serve
    • Palm Beach
    • West Palm Beach
    • Boca Raton
    • Jupiter
    • Palm Beach Gardens
    • Delray Beach
    • Wellington
    • Manalapan
    • Highland Beach
    • Tequesta
    • Boynton Beach
    • Lake Worth
    • Royal Palm Beach
    • Greenacres
    • Riviera Beach
    • North Palm Beach
    • Lantana
    • Belle Glade
    • Palm Springs

Type your street address — we’ll tell you right away if we come there.

Other brands we repair

Technician servicing a built-in refrigerator

Contact

Book your Sub-Zero refrigerator repair: a technician can come today or tomorrow

Get help with a warm Sub-Zero refrigerator, recurring frost, a leak or a service message. Use Online booking or call (786) 808-7771 to arrange refrigerator service.

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