Sub-Zero Designer Wine (IW) Code 15-2-00: no power path to the zone 2 compressor

What 15-2-00 means

Owners of Sub-Zero Designer Wine (IW) storage, such as the IW-30CI and IW-30, may see 15-2-00 when the zone 2 compressor relay is stuck open. The control board calls for cooling in zone 2, yet the relay never closes, so the compressor for that zone gets no power. Zone 2 gradually rises in temperature while the other zones carry on, and the panel shows 15 2 00.

Common causes of 15-2-00

A zone 2 compressor relay that fails to close
A control board that is not energizing the relay coil
A loose wire on the compressor side of the relay

✓ One safe check you can try

1. Read the zone 2 temperature and write it down. 2. Shift bottles that matter most out of zone 2. 3. Power the unit down at the breaker briefly and bring it back once. 4. If the code persists, book a technician and keep the doors closed.

! Why to stop there

Diagnosis involves measuring voltage at the relay while the board calls for cooling
The board and relay sit behind covers that carry line voltage
Parts must match the IW control revision

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

15-2-0015-2-00 questions

Why only zone 2?

Each relay on these IW controls handles one zone, so a stuck relay affects just that zone. Zones 1 and 3 keep running on their own circuits.

How long will zone 2 stay cool?

It depends on the room and how often the door opens. A closed cabinet holds temperature for some hours, but it will rise steadily without the compressor, so arrange service soon.

Do you replace the whole board?

Only if testing shows the board is the problem rather than the relay alone. We explain what we find, give a written price, and cover the repair with a 30-day workmanship warranty.