Sub-Zero Designer Wine (IW) Code 35-1-00: zone 1 evaporator fan circuit open

What 35-1-00 means

Sub-Zero Designer Wine Storage IW units, including the IW-30 and IW-24, log 35-1-00 when the zone 1 evaporator fan reads as open. That fan pushes cold air from the zone 1 coil through the compartment. With an open circuit, the control sees no fan at all. Zone 1 may cool unevenly or warm up, the coil can frost, and 35 1 00 appears.

Common causes of 35-1-00

An evaporator fan motor in zone 1 with an open winding
A disconnected or broken fan wire
A board output that is not reaching the fan

✓ One safe check you can try

1. Open zone 1 briefly and listen for the fan; silence fits this code. 2. Make sure bottles are not pressed against the rear air vents. 3. Restart the unit once at the breaker. 4. Contact us if 35-1-00 shows again. 5. Keep zone 1 closed afterward so any remaining cold stays inside.

! Why to stop there

The fan sits behind the evaporator cover in zone 1
Measuring the fan circuit requires a meter and access to the harness
Frost on the coil may need a controlled defrost first

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

35-1-0035-1-00 questions

Why is zone 1 warmer at the top than the bottom?

Without the evaporator fan, cold air no longer circulates through zone 1, so temperatures layer unevenly. That uneven feel is common with 35-1-00. Look for frost at the back wall too.

Can I hear the fan myself?

Often, yes. With the door open briefly, a working fan usually makes a soft whir. If zone 1 is silent while it should be cooling, the fan is likely not running.

Is it the fan or the board?

We test the fan motor and its wiring first, then the board output. We share a written price before the repair, and our workmanship carries a 30-day warranty.