Sub-Zero · Integrated Series
Sub-Zero Integrated Column, Tall and Drawer Error Codes
Touchscreen Integrated columns, tall units and drawers log faults as three-part codes such as 40 1 40 and put the serious ones on the screen when you open the door. The older IC-27 columns use two-digit codes. Either way, a code names a circuit, not a part, so it is where testing starts.
$79 service call, applied to the repair. Monday to Saturday, 8 AM to 7 PM.
In short: on a touchscreen unit, open the settings (the cog), the information screen (the letter i), then Errors, and photograph the list. Codes starting 10 are sensors, 15 board relays, 20 freezer defrost, 35 fans and 40 a compressor that ran too long. EE means a failed compartment sensor. A chime with every door shut is the most serious level.
Which control your unit has
The rating plate tells us. On columns it is inside, near a drawer guide on the side opposite the hinge; on tall and drawer models, on the left wall beside the upper drawer. After the width, R means refrigerator, F freezer, C combination, I ice maker and ID an internal water dispenser.
| Models | Control | How faults show |
|---|---|---|
| IC-27R, IC-27F | Five push keys and a small LCD | A SERVICE word, plus two-digit EC codes a technician reads in diagnostic mode |
| IC-18 to IC-36 columns, including the IC-30R, IC-30RID and IC-30FI, and IT-30 and IT-36 tall units | Touchscreen | Three-part codes, a message on door opening for the serious ones, and an error list |
| ID-24 to ID-36 drawers | Touchscreen | The same severity levels and code layout as the columns |
| Designer models starting DEC or DET | Newer touchscreen | Not covered by these tables; note the message and the compartment it names |
Wine columns (IW) are on wine storage error codes, earlier 700 series columns on 600 and 700 series diagnostics, and how these units are built on Integrated and Designer repair. Meanings vary by model and era; treat the tables as a guide, not a parts list.
How a touchscreen unit reports a fault
The control grades every fault on five levels, and only the upper ones reach you.
| Level | What you notice | How urgent |
|---|---|---|
| 1 | Nothing; it sits in the service record | Found on the next visit |
| 2 | A short message when you open the door, and an entry in the error list | Book a visit |
| 3 | The message stays while the door is open | Book soon, watch temperatures |
| 4 | The message stays and chimes while the door is open | Call within a day |
| 5 | The message stays, and the worst faults chime even with the door shut | Call today, protect the food |
If a temperature sensor fails, the screen shows EE in place of that reading and the unit keeps cooling on a timer instead of to your set point. If a compressor keeps running without a break, the service icon flashes, and if the section still has not cooled after about a day, a chime is added.
Most stored codes stay until a technician clears them from the password-protected service screen, and one cleared without a repair comes back.
How to read a three-part code
The first two digits name the system: 10 a temperature sensor, 15 a switch on the control board, 20 freezer defrost, 30 ice and water, 35 a fan, 40 run time, most often a compressor that ran too long, 45 lights, 90 the electronics. The middle character is usually the zone, 1, 2 or 3, or a letter such as C for the condenser. The last two digits say how it failed, for example 00 for a broken circuit or 40 for a run that went too long.
So 35 2 34 reads as a fan in zone 2 turning slower than it should. Zone numbering depends on the model, so we match the number to the compartment on your unit before testing.
The codes, system by system
These come from Sub-Zero's 2016 literature for Integrated Tall and Column units; drawers follow the same layout. Level refers to the table above.
Sensors and board relays (10, 15)
| Code | What it points to | Level | What it usually turns out to be |
|---|---|---|---|
| 10 1 00 to 10 1 02 (2 or 3 for other zones) | Compartment air sensor open, shorted or jumpy | 2 | The sensor, its connector or a pinched wire |
| 10 1 10 to 10 1 12 (and zones 2, 3) | Evaporator coil sensor open, shorted or unstable | 2 | The same parts. On a refrigerator, the compressor then waits until the section is several degrees warm. |
| 10 C 00 to 10 C 02 | Condenser sensor at the base | 2 | Sensor or connection. The 24 inch combination column's manual writes these as 10 0 00 to 10 0 02. |
| 15 1 00 (or 15 2 00, 15 3 00) | The control asked a compressor to start and it did not | 5 | Anything from a connection or the control board to the compressor itself; we test carefully before ordering anything |
| 15 1 01 (or 15 2 01, 15 3 01) | The control cannot switch that compressor off | 5 | Usually the control board; the section can run far too cold meanwhile |
| 15 4 00, 15 4 01 | Defrost relay stuck open or closed | 2, 3 | The board. Open lets frost pack the coil; closed keeps the heater on. |
| 15 U 00, 15 U 01 | No current at a water valve when called; or current after the fill ended | 1, 4 | 00 usually the valve or wiring. 01 is a stuck board relay that can keep water running, so close the supply. |
Defrost, fans and run time (20, 35, 40)
| Code | What it points to | Level | What it usually turns out to be |
|---|---|---|---|
| 20 2 00, 20 2 01 | Defrost thermostat on the coil stuck open or closed | 2 | The thermostat. While it reads open, defrost falls back to fixed timing. |
| 20 2 05, 20 2 06 | The defrost thermostat's signal does not match what the coil is doing | 1, 2 | Often a loose connection rather than a failed part; we test before replacing anything |
| 20 2 50 | Defrost heater circuit open | 2 | A burned-out heater or connection; the freezer ices up. See frost buildup. |
| 35 1 00 (and zones 2, 3) | Evaporator fan draws no current | 2 | Fan motor, connector or board output |
| 35 1 34, 35 1 33 (and zones 2, 3) | Fan slower, or faster, than commanded | 1 | 34: often ice around the blade or something against the cover. 33: usually a failing motor. |
| 35 C 00, 35 C 33, 35 C 34 | DC condenser fan open or at the wrong speed | 1 | Motor, wiring, or lint at the toe-kick; leads to long compressor runs |
| 40 1 40 (or 40 2 40, 40 3 40) | That zone's compressor ran too long, cycle after cycle | 3 | The code we see most. Usually the toe-kick condenser or a sagging door; see Long run time below. |
| 40 1 00, 40 1 87, 40 b 00, 40 b 87 | A motorized air damper or similar part, on models that have one, did not move or brought no cooling | 1 | The damper motor or its wiring, occasionally a sealed-system problem behind it |
Ice, lights and electronics (30, 45, 90)
| Code | What it points to | Level | What it usually turns out to be |
|---|---|---|---|
| 30 8 05 | Ice maker never asked for water | 1 | The ice maker module or its power; first check it is switched on |
| 45 1 00 to 45 2 01 | Lighting circuit open or shorted | 1 | An LED light, connector or board output |
| 90 5 80 | Board lost contact with the touchscreen | 1 | Cable or screen module; cooling may continue |
| 90 H 80, 90 H 82, 90 H 83, 90 H 84 | Communication trouble inside the main board | 1, 2 | Usually the control board. If 84 appeared right after a power outage, switch the breaker off for a minute and back on once; if it returns, book a visit. |
The older IC-27 columns
The 27 inch IC-27R and IC-27F came before the touchscreen and report faults the same way as 600 and 700 series units of the same period. A flashing SERVICE word usually means a compressor has been running far too long. A technician reads the two-digit EC codes behind it on the visit; defrost codes belong to the freezer column.
| Code | What it means | Usually |
|---|---|---|
| 05, 06 | A refrigerator temperature sensor: 05 the compartment, 06 the coil | Usually the sensor or its connection |
| 07, 08 | The same two sensors in the freezer | Usually the sensor or its connection |
| 20 to 24 | Freezer defrost did not heat as expected, too little or too much | Heater, defrost thermostat, wiring, or very heavy ice |
| 30 | The ice maker kept its water valve on too long | Usually the ice maker stuck mid-fill or a switch inside it, sometimes wiring |
| 40, 50 | Freezer (40) or refrigerator (50) compressor ran too long | Usually the toe-kick condenser or a sagging door; see Long run time below |
Things that look like faults and are not
- Sabbath mode. The screen stays dark apart from a message on how to leave it: hold a finger on the screen for a few seconds. Lights dim, the ice maker stops, and the fan keeps running with the door open.
- Ice maker pauses. 45 minutes after every harvest, and whenever the freezer is open plus three minutes after it closes.
- Water filter icon. It lights after about a year or roughly 890 gallons. Replace the filter and reset it under Filters on the information screen.
- Slow temperatures. The display shows an average, moves about a degree a minute, and holds the freezer reading during defrost.
- A three-minute wait. After switching on, the compressors stay off at least three minutes.
- Showroom mode. A unit left in it after delivery lights up but does not cool. It sits behind the service password, so a technician turns it off.
An alarm with every door closed is covered on Sub-Zero alarm beeping.
What the common codes turn out to be
Long run time (40 1 40, IC-27 codes 40 and 50)
What it usually is: the condenser at floor level, breathing through the toe-kick grille, packed with dust and pet hair, or a door that no longer seals because a heavy panel has worn the hinge and closer. An iced coil is next; a leak is least common.
What you can check: with the breaker off, vacuum the grille slots, and check each door swings shut and seals from halfway open.
What we do: clean the coil and fan, check the seal and hinge, and measure the recovery. See condenser cleaning and running constantly.
Compressor circuit code with a chime (15 1 00)
What it usually is: the compressor did not start, because of a connection, the control or the compressor itself. The section warms quickly.
What you can check: the breaker. Move food to a cooler.
What we do: test the control and the compressor's electrical side before any sealed-system decision, then replace a failed compressor in-house with the unit in place. See sealed-system repair.
Stay safe. Leave the service options screen to a technician; it can switch parts on out of sequence and erase the history we need. Never pull the unit from its opening or touch refrigerant lines. If water reaches the floor, close the supply valve.
What the repair costs
The service call is $79. It covers the visit, reading the code list and testing the circuit it points to, and it is applied to the repair once you approve the written price.
Built-in refrigerator and freezer repair (Sub-Zero, Thermador, Viking, Monogram, Miele)
| Repair | Typical price, parts and labor |
|---|---|
| Condenser cleaning and performance check | $150 to $250 |
| Condenser fan motor | $350 to $600 |
| Evaporator fan motor | $350 to $650 |
| Temperature sensor (thermistor) | $250 to $450 |
| Defrost heater or defrost termination | $350 to $650 |
| Water valve | $300 to $550 |
| Door gasket, per door | $300 to $600 |
| Door hinge or closer cam | $300 to $650 |
| Ice maker assembly | $450 to $900 |
| Electronic control board | $650 to $1,300 |
| Refrigerant leak repair and recharge | $900 to $2,000 |
| Evaporator replacement | $1,200 to $2,500 |
| Compressor replacement (sealed system) | from $2,000 |
Typical Orange County ranges for parts and labor. The $79 service call is applied to any of them. Parts that ship from the manufacturer and older or discontinued models can run higher. You get the exact written price after the diagnosis and before any work starts.
See pricing, built-in refrigerator repair and the general Sub-Zero error codes guide, or contact us.
Talk to the technician first
Monday to Saturday, 8 AM to 7 PM. The $79 service call is applied to the repair.
Sub-Zero Integrated error codes: questions
What does error 40 1 40 mean on a Sub-Zero Integrated unit?
The compressor for zone 1 ran without a break for several long cycles. Clean the toe-kick grille with the power off, check that the doors seal, and book a visit.
My IC-30 chimes even with the doors closed. What should I do?
That is the most serious level, often a compressor circuit that is not running. Check the breaker, move perishables to a cooler, photograph the error list and call the same day.
What does EE on my Integrated column mean?
That compartment's sensor failed or lost its connection. The compressor runs on a fixed schedule, so the section stays cool but not at its set point. Book soon.
Can I clear Sub-Zero Integrated error codes myself?
Clearing sits behind the service password, and a code cleared without a repair comes back. Leave it stored; the record helps us find the cause.
Where can I see the error list without a technician?
Open the settings with the cog, choose the information screen marked i, and touch Errors. It also shows filter life and the serial number.
Are IC-27 codes the same as on newer columns?
No. On an IC-27, code 40 means the freezer compressor ran too long. Touchscreen units use three-part codes such as 40 1 40.
Do Designer DEC and DET models use these codes?
Not necessarily. Photograph the message and the compartment it names, and give us the model number when you book.
Are you connected to Sub-Zero?
No. We are an independent service, not affiliated with Sub-Zero Group, and we give a written price before any work starts.