Gaggenau Wine Coolers Error Codes

E1

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

Cabinet Temperature Sensor (NTC) Failure

E10

Display shows E10 and the interior light or other low-voltage functions may not operate correctly.

Low-Voltage Power Supply Fault

E11

Wine cooler shows E11 and door alarm may sound even when the door is closed; interior light may stay on.

Door Switch / Door Contact Fault

E12

Display shows E12 and the humidity function or humidity display does not operate correctly (on models with humidity control).

Humidity Sensor or Humidity Control Fault

E13

Wine cooler displays E13 and the interior LED lighting may flicker or not turn on.

LED Lighting Circuit Fault

E14

Display shows E14 and the unit may not defrost properly; ice may accumulate on the evaporator.

Defrost Heater Circuit Open

E15

Wine cooler shows E15 and may shut down or run erratically after a power event.

Power Supply / Voltage Anomaly Detected

E16

Display shows E16 and the unit may not respond to temperature adjustments; buttons may seem unresponsive.

Keypad / Touch Control Fault

E17

Wine cooler shows E17 and may not cool; compressor and fans may be off while lights and display work.

Safety Lockout / Overtemperature Protection Triggered

E18

Display shows E18 and the unit may not switch between upper and lower temperature zones correctly (dual-zone models).

Zone Diverter / Air Flap Control Fault

E19

Wine cooler shows E19 and the internal temperature display may be blank or show dashes for one zone.

Zone Temperature Sensor Failure (Upper or Lower Zone)

E2

Display shows E2 and unit may run continuously or not cool correctly; temperature readings are erratic.

Evaporator Temperature Sensor (NTC) Failure

E20

Display shows E20 and the unit may not cool; compressor may be locked out.

Refrigerant System Fault Detected (Low Charge / Leak)

E3

Wine cooler shows E3 and interior light and display may remain on but compressor does not run correctly; temperature control unreliable.

Ambient Temperature Sensor Failure

E4

Display shows E4 and the unit may stop cooling or run erratically; defrost cycles may not occur correctly.

Defrost Sensor or Defrost Circuit Fault

E5

Wine cooler displays E5 and may not reach set temperature; compressor may short-cycle or not start.

Compressor Start/Run Circuit Fault

E6

Display shows E6 and the interior fan may not run; temperature may be uneven within the cabinet.

Evaporator Fan Motor Fault

E7

Wine cooler shows E7 and may not respond correctly to set temperature; display may be blank or flicker intermittently.

User Interface / Display Communication Error

E8

Display shows E8 and the unit may not cool; compressor may not start or may shut down quickly.

High-Pressure or Condenser Temperature Fault

E9

Wine cooler displays E9 and may not maintain stable temperature; compressor may run continuously or not at all.

Main Control Board Failure

Symptom

Alarm beeps frequently or continuously even though the door appears closed and temperature seems normal.

False Alarm from Door or Temperature Monitoring

Symptom

Buttons or touch controls do not respond, but display is lit and temperature is shown.

Unresponsive Keypad / Touch Sensor

Symptom

Chemical or plastic smell from inside the new or recently serviced wine cooler.

Off-Gassing from New Components or Residual Cleaning Agents

Symptom

Display is blank or very dim, but the unit still cools.

Display Backlight or Interface Power Issue

Symptom

Door does not close properly or pops open slightly after being shut.

Door Alignment / Hinge or Gasket Issue

Symptom

Door gasket is torn, cracked, or not sealing, causing temperature and humidity issues.

Door Gasket Failure

Symptom

Dual-zone wine cooler shows correct temperatures but one zone is consistently warmer than setpoint while the other is correct.

Single-Zone Air Distribution or Sensor Issue

Symptom

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

Defrost System Failure or Air Infiltration

Symptom

Interior LED lights do not turn on when the door is opened, but the unit cools normally.

Lighting Circuit or Door Switch Issue

Symptom

Interior LED lights stay on even when the door is closed.

Door Switch Stuck or Misaligned

Symptom

Interior surfaces and bottles are damp; condensation forms on glass door and inside walls.

High Humidity / Condensation Inside Cabinet

Symptom

Strong musty or moldy odor inside the wine cooler.

Microbial Growth / Odor Contamination

Symptom

Water is leaking onto the floor from under the wine cooler.

External Leak from Drain or Condensation

Symptom

Water or condensation is pooling at the bottom of the wine cooler interior.

Clogged or Misrouted Defrost Drain

Symptom

Wine cooler emits a high-pitched whine or electronic buzzing from the control area.

Control Board or Fan Electrical Noise

Symptom

Wine cooler interior temperature fluctuates widely; some bottles are too warm while others are too cold.

Poor Air Circulation / Fan or Ducting Issue

Symptom

Wine cooler is completely warm; compressor does not run at all, but interior lights and display work.

Non-Running Compressor (Electrical Control Issue)

Symptom

Wine cooler is dead: no lights, no display, no cooling.

No Power / Power Supply Failure

Symptom

Wine cooler makes a loud rattling or scraping noise from inside the cabinet when running.

Evaporator Fan or Internal Component Rattle

Symptom

Wine cooler makes loud humming or buzzing noise from the rear, especially when the compressor runs.

Compressor or Condenser Vibration Noise

Symptom

Wine cooler runs but does not get cold enough; temperature remains several degrees above setpoint in all zones.

General Poor Cooling Performance

Symptom

Wine cooler runs continuously and gets too cold; bottles may be colder than the set temperature.

Overcooling / Thermostat Control Failure