mypros+
Error code reference

Thermador Refrigerator Error Code 3-3-3

Icemaker

Thermador codesThermador refrigerator codes

Icemaker: Internal ice maker fault.

First step from the service manual

Switch the appliance off and on; if fault code reappears, replace the ice maker.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for 3-3-3.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What 3-3-3 means on a Thermador refrigerator

Error code 3-3-3 on a Thermador refrigerator indicates an internal ice maker fault. This code points directly to a failure within the ice maker assembly itself rather than an external component such as the water inlet valve or water supply line. The ice maker unit contains an integrated control module, a thermostat, a heater, a motor, and a series of sensors that work together to manage the freeze cycle, harvest cycle, and water fill sequence. When the internal logic or one of these components fails in a way that the refrigerator's main control board cannot reconcile, it logs the 3-3-3 fault code.

The first recommended diagnostic step is a power cycle: switch the refrigerator off, wait approximately one minute, and restore power. This clears any transient electrical glitch that may have triggered the fault. If the 3-3-3 code returns after the power cycle, the fault is persistent and indicates a hardware failure within the ice maker module. Because the ice maker contains integrated electronics and mechanical components that are not individually serviceable in the field, the standard corrective action is full ice maker assembly replacement. Attempting to repair individual internal components such as the harvest motor or internal thermostat is generally not practical, as replacement assemblies are designed to restore full function reliably.

Source: manufacturer service documentation.

Common causes of 3-3-3

  1. 01

    Failed ice maker control module

    Part replacement

    The internal control board within the ice maker assembly can fail due to age, moisture exposure, or power fluctuations. This is the most common cause of a persistent 3-3-3 code and requires full ice maker assembly replacement.

  2. 02

    Ice maker motor failure

    Part replacement

    The harvest motor drives the ejector blades to release ice cubes from the mold. If the motor seizes or its windings fail, the ice maker reports an internal fault. This failure is internal to the assembly and not separately serviceable.

  3. 03

    Internal thermostat or temperature sensor fault

    Part replacement

    The ice maker uses an internal thermostat to detect when the mold has reached the proper temperature for harvest. A failed thermostat can cause the ice maker to report an internal fault even when the freezer temperature is correct.

  4. 04

    Transient electrical glitch

    Wiring / connection

    A temporary voltage spike or brief power interruption can cause the ice maker's internal electronics to log a fault code. A power cycle clears this in most cases, and the ice maker resumes normal operation without any parts replacement.

  5. 05

    Ice maker heater failure

    Part replacement

    The ice maker heater warms the mold during the harvest cycle to release cubes. If the heater element fails or its circuit opens, the ice maker cannot complete a harvest cycle and will register an internal fault.

See the test procedure for each cause

Frequently asked questions about 3-3-3

What does 3-3-3 mean on a Thermador refrigerator?
The 3-3-3 error code on a Thermador refrigerator indicates an internal ice maker fault. This means the ice maker assembly has detected a failure within its internal components, such as the control module, harvest motor, heater, or internal thermostat. The ice maker will typically stop producing ice while this fault is active. A power cycle can sometimes clear the code if the cause was a transient glitch, but a recurring code requires ice maker replacement.
Will resetting my Thermador refrigerator clear the 3-3-3 error code?
A reset, meaning turning the refrigerator off and back on, is the recommended first step and can clear the code if it was caused by a temporary electrical issue. However, if the 3-3-3 code reappears after the power cycle, the fault is persistent and a reset will not permanently resolve it. In that case, the ice maker assembly needs to be replaced to eliminate the code.
How do I fix the 3-3-3 error code on my Thermador refrigerator?
Start by switching the refrigerator off, waiting about one minute, and turning it back on. If the code clears and does not return, no further action is needed. If the 3-3-3 code comes back after the power cycle, the ice maker assembly itself has an internal hardware failure and should be replaced. Because the faulty components are integrated into the ice maker unit, replacing the full assembly is the standard repair approach.
Is the 3-3-3 error code on a Thermador refrigerator a safety concern?
The 3-3-3 fault is limited to the ice maker system and does not affect the refrigerator or freezer cooling functions. Your food will remain safely refrigerated and frozen while this code is present. The only consequence is that the ice maker will not produce ice until the fault is resolved.
How much does it cost to fix a 3-3-3 error code on a Thermador refrigerator?
If the repair requires replacing the ice maker assembly, parts costs typically range from around $80 to $250 or more depending on the specific model, with labor costs adding $100 to $200 if a technician performs the repair. If a simple power cycle clears the code, there is no parts cost involved. Getting a model-specific parts quote before scheduling a service call is recommended to understand the total cost.

Related Thermador refrigerator codes

All Thermador refrigerator codes
View all 49 Thermador refrigerator codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass