Thermador Wine Coolers Error Codes

E1

Wine cooler displays E1 and will not cool properly; interior temperature rises above setpoint.

Cabinet Temperature Sensor Failure

E10

E10 displayed; unit may not cool and may show signs of frost buildup or no frost at all.

Low Refrigerant / Sealed System Performance Fault (inferred by control)

E11

E11 appears; dual-zone wine cooler shows one zone at incorrect temperature while the other seems normal.

Dual-Zone Temperature Imbalance / Zone Sensor Fault

E12

E12 displayed; interior lights may flicker or remain on, and temperature may drift.

Lighting Circuit / Low-Voltage Power Fault

E13

E13 error; audible alarm may sound and unit may shut down or limit operation.

High Voltage / Low Voltage Supply Error

E14

E14 displayed; unit may not respond to keypad inputs or may behave erratically.

Keypad / Touch Control Fault

E15

E15 error; unit may shut down cooling and alarm may sound, often associated with internal leak detection.

Internal Condensate / Leak Detection Fault

E16

E16 displayed; unit may not cool and compressor may not run.

Compressor Overload / Thermal Protection Fault

E17

E17 error; dual-zone unit may show both zones at same temperature or one zone disabled.

Zone Damper / Air Diverter Fault (Dual-Zone Models)

E18

E18 displayed; unit may not defrost properly, leading to ice buildup and poor cooling.

Defrost Timer / Defrost Control Logic Fault

E19

E19 error; unit may not recognize door open/close events correctly, affecting lights and alarms.

Door Sensor Calibration / Logic Fault

E2

Wine cooler shows E2 and may run continuously or shut down cooling intermittently.

Ambient Temperature Sensor Failure

E20

E20 displayed; unit may not maintain humidity properly or may run fans unexpectedly.

Humidity Sensor / Humidity Control Fault (if equipped)

E3

Display shows E3 and the wine cooler may overcool or fail to reach set temperature.

Evaporator Temperature Sensor Failure

E4

Wine cooler displays E4 and may shut down cooling or run erratically.

Defrost Sensor or Defrost Circuit Fault

E5

E5 appears on the display; unit may not respond correctly to temperature settings.

User Interface / Control Panel Communication Error

E6

Wine cooler shows E6 and may not cool; compressor may not start.

Compressor Start / Inverter Communication Fault

E7

Display shows E7; interior lights and fans may work but cooling is disabled or erratic.

Door Switch or Door Status Sensor Fault

E8

E8 error displayed; unit may run continuously or not maintain set temperature.

Fan Motor Fault (Evaporator or Condenser Fan)

E9

Wine cooler shows E9; temperature may fluctuate widely or unit may shut down cooling.

High Temperature / Overtemperature Alarm Condition

Symptom

Audible alarm beeping periodically with no visible error code.

Door Ajar or Temperature Alarm

Symptom

Buttons on the control panel do not respond or respond intermittently.

Unresponsive Controls – Touch Panel Failure

Symptom

Cabinet interior feels unusually warm to the touch on side walls or top.

Cabinet Heat – Condenser Loop or Insulation Effect

Symptom

Chemical or plastic smell from new wine cooler that persists for weeks.

New Appliance Odor / Off-Gassing

Symptom

Clicking sound from rear; compressor attempts to start but shuts off repeatedly; no cooling.

Compressor Start Failure

Symptom

Display is blank or very dim, but unit appears to be cooling.

Display / User Interface Power Issue

Symptom

Door gasket sweating or heavy condensation around door frame.

Condensation / Gasket Seal Issue

Symptom

Door will not close properly or pops open slightly after closing.

Door Alignment / Hinge or Gasket Issue

Symptom

Excessive frost or ice buildup on the evaporator and rear interior wall.

Frost Build-Up – Defrost System Failure

Symptom

Interior fan runs constantly or cycles rapidly, even when temperature is stable.

Fan Control / Air Circulation Logic Issue

Symptom

Interior light not working, but cooling is normal.

Lighting Failure

Symptom

Loud humming, buzzing, or rattling noise during operation.

Excessive Noise – Mechanical Vibration or Fan Issue

Symptom

Strong musty or moldy odor inside the wine cooler.

Odor / Biological Contamination

Symptom

Temperature display does not match actual bottle temperature.

Temperature Inaccuracy – Sensor or Calibration Issue

Symptom

Unit vibrates excessively, causing bottles to rattle.

Excessive Vibration – Leveling or Mechanical Support Issue

Symptom

Water leaking onto the floor from beneath the wine cooler.

External Water Leak – Drain Pan or Tubing Issue

Symptom

Water pooling at the bottom of the wine cooler interior.

Interior Water Leak – Blocked Drain

Symptom

Wine cooler not cooling at all; interior warm, lights may work but compressor and fans are off.

No Cooling – Power or Control Failure

Symptom

Wine cooler runs but does not get cold enough; temperature remains above setpoint.

Poor Cooling – Airflow or Sealed System Issue

Symptom

Wine cooler too cold; bottles or labels may show signs of freezing near the back.

Overcooling – Sensor or Control Calibration Issue