Sub-Zero Designer Wine (IW) Code 10 C 00: condenser thermistor open

What 10 C 00 means

Legacy Designer Wine (IW) units, the IW-24 and IW-30R among them, show 10 C 00 when the condenser thermistor is open. This sensor watches the condenser area where heat leaves the unit, and the control now sees no circuit from it. Without that reading the control cannot judge condenser temperature or adjust the condenser fan the way it normally would. Cooling usually continues, but performance can suffer in a warm room.

Common causes of 10 C 00

A condenser sensor plug that has loosened
A broken lead in the machine compartment
A condenser thermistor with no continuity
A control input that no longer reads it

✓ One safe check you can try

1. Clear dust and stored items from the grille. 2. Make sure the space around the unit is not unusually hot. 3. Watch the zone temperatures over a day. 4. Reset the breaker once. 5. Call us if 10 C 00 remains.

! Why to stop there

The sensor sits in the machine compartment near the fan and compressor
The compartment carries line voltage
Tracing an open lead needs a meter

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

EC 11Sub-Zero 400 Series Wine Code EC 11: upper cabinet too cold EC 13Sub-Zero 400 Series Wine Code EC 13: lower cabinet cold alarm EC 15Sub-Zero 400 Series Wine Code EC 15: unit not cooling Service flashingSub-Zero 400 Series Wine "Service" Flashing: compressor ran too long 45-2-00Sub-Zero Designer Wine (IW) Code 45-2-00: zone 2 lights not drawing power 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

10 C 0010 C 00 questions

Will my wine warm up with 10 C 00?

Usually not right away. The zones keep their own sensors. The condenser reading mostly helps the control manage heat removal, so trouble tends to appear on hot days.

Is this the same as a zone sensor code?

No. The C in the code points to the condenser area, not a wine zone. It is tested in the machine compartment. The zones keep their own readings.

What does the repair involve?

We test the sensor and lead, replace what failed and quote in writing first. The work carries our 30-day workmanship warranty. Expect a short visit.