Thermador Refrigerator Error Code 1-1-1
Icemaker
Icemaker: Ice production cycle is interrupted (mechanical blockage or motor fault).
First step from the service manual
Start icemaker self test and observe if ice tray rotates; check for mechanical blockage.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
Get the full diagnostic procedure for 1-1-1.
- 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
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What 1-1-1 means on a Thermador refrigerator
Error code 1-1-1 on a Thermador refrigerator signals an interruption in the icemaker's ice production cycle. This code is generated when the control system detects that the ice tray has failed to complete its rotation sequence within the expected time window. The icemaker module relies on a small motor to drive the ice tray through its twist-and-eject cycle, and if that rotation is blocked or the motor fails to generate sufficient torque, the cycle halts and the fault is logged.
The two primary failure categories behind this code are mechanical blockage and motor fault. A mechanical blockage can occur when ice cubes freeze together into a clump inside the tray, when a foreign object enters the icemaker compartment, or when ice builds up around the ejector arms and prevents rotation. A motor fault points to the internal drive motor losing continuity, seizing, or drawing abnormal current. Both conditions result in the same outcome: the tray does not rotate and the production cycle cannot complete.
The recommended starting point is running the icemaker self-test mode and observing whether the ice tray physically rotates. If the tray does not move at all, the fault is likely electrical or motor-related. If the tray attempts to move but stalls, a mechanical obstruction is the more probable cause. Inspecting the tray cavity for ice bridges, clumped cubes, or debris should follow immediately. Clearing any blockage manually and re-running the self-test will confirm whether the motor itself is functional or needs replacement.
Source: manufacturer service documentation.
Common causes of 1-1-1
- 01
Ice clump or bridge blocking tray rotation
Wiring / connectionIce cubes that partially melt and refreeze can fuse together into a solid mass that prevents the tray from completing its rotation. Inspect the ice tray and ejector area for fused cubes or an ice bridge and clear the blockage manually.
- 02
Ice buildup around ejector arms
Wiring / connectionFrost or excess ice accumulation around the ejector arms can physically lock the mechanism in place. A manual defrost of the icemaker compartment using a hair dryer on low heat or warm water can resolve this condition.
- 03
Icemaker drive motor failure
Part replacementThe motor responsible for rotating the ice tray can seize or lose electrical continuity, preventing any tray movement during the production cycle. If the tray does not rotate at all during the self-test and no blockage is present, motor replacement is indicated.
- 04
Foreign object in icemaker compartment
Wiring / connectionSmall items such as food packaging or displaced shelf components can enter the icemaker area and obstruct tray movement. A visual inspection of the full icemaker cavity should be performed to rule this out.
- 05
Icemaker module or wiring harness fault
Part replacementA failure in the icemaker control module itself or a damaged wiring harness connection to the drive motor can prevent the motor from receiving the signal to rotate. Check connector integrity and inspect the harness for pinching, corrosion, or breaks.
Frequently asked questions about 1-1-1
What does 1-1-1 mean on a Thermador refrigerator?
How do I fix error code 1-1-1 on my Thermador refrigerator?
Is it safe to use my Thermador refrigerator while error code 1-1-1 is active?
How much does it cost to repair a Thermador refrigerator showing error code 1-1-1?
Will resetting my Thermador refrigerator clear error code 1-1-1?
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