Sub-Zero Designer Wine (IW) Code 10 1 00: no signal from zone 1 air sensor

What 10 1 00 means

Sub-Zero's legacy Designer Wine (IW) line, including the IW-24 and IW-18, displays 10 1 00 when the zone 1 cabinet thermistor is open. The control is looking for the zone 1 air sensor and finding no circuit at all. Because it can no longer measure zone 1 air, it regulates that zone by a rough fallback pattern. Bottles in zone 1 may warm or chill past the set point, and the zone 1 readout may show dashes.

Common causes of 10 1 00

A zone 1 sensor plug pulled loose
A broken lead behind the zone 1 liner
A zone 1 cabinet thermistor that has failed open
A control input that no longer reads the circuit

✓ One safe check you can try

1. Set a thermometer in zone 1 and read it after an hour. 2. Make sure the zone 1 door seals all the way around. 3. Leave the area near the sensor uncovered. 4. Switch the breaker off for one minute and back on. 5. If 10 1 00 does not clear, contact us.

! Why to stop there

Sensor leads run behind the liner and require panel removal
Finding an open circuit takes a meter
A board change on a guess wastes money

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Wine Storage codes

45-2-01Sub-Zero Designer Wine (IW) Code 45-2-01: zone 2 light short circuit 90-5-80Sub-Zero Designer Wine (IW) Code 90-5-80: keypad module not talking to the control 90-H-80Sub-Zero Designer Wine (IW) Code 90-H-80: no communication with the high-voltage micro 90-H-82Sub-Zero Designer Wine (IW) Code 90-H-82: partial communication with the CCM 90-H-83Sub-Zero Designer Wine (IW) Code 90-H-83: bad data from the high voltage micro 90-H-84Sub-Zero Designer Wine (IW) Code 90-H-84: high voltage micro failed to initialize 95-1-00Sub-Zero Designer Wine (IW) Code 95-1-00: zone 1 door open too long EC 11Sub-Zero 400 Series Wine Code EC 11: upper cabinet too cold

10 1 0010 1 00 questions

What happens to zone 1 while 10 1 00 is showing?

The control keeps zone 1 cooling on a fallback routine. It may overshoot or undershoot, so check it with a thermometer and move valuable bottles if needed.

Could this happen after the unit was moved?

Yes. Moving or reinstalling an IW-24 can tug a sensor plug loose. That is one of the first things we check before ordering a thermistor.

What will the repair cost?

We test the plug, lead and sensor, then give you a written price. Approved repairs carry our 30-day workmanship warranty. Most of the time it is a plug or lead, not the board.