Sub-Zero Designer Wine (IW) Code 35 3 00: zone 3 fan circuit open

What 35 3 00 means

Sub-Zero Designer Wine storage from the legacy IW line, for example the IW-30 or IW-30CI, uses three-part codes, and 35 3 00 means the zone 3 evaporator fan is open. The control tried to run the fan that moves cold air across the zone 3 coil and found no complete circuit. Without that airflow, zone 3 cannot hold its set temperature. Owners often notice that section warming, a silent interior when cooling should be running, or frost forming on the coil.

Common causes of 35 3 00

A fan connector that has worked loose or corroded
A broken wire in the fan circuit
A zone 3 evaporator fan motor with an open winding
A control output that no longer drives the fan

✓ One safe check you can try

1. Listen inside zone 3 with the door open and the light switch pressed; a running fan is usually audible. 2. Make sure bottles are not touching the rear air openings. 3. Close the door and confirm it seals. 4. Turn the breaker off for one minute and back on. 5. If 35 3 00 returns, move valuable bottles and call us.

! Why to stop there

The fan sits behind a rear cover wired to the control
An open circuit has to be traced with a meter to find the break
Wine stored at the wrong temperature for days can lose quality

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

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 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

35 3 0035 3 00 questions

Can my wine be harmed while 35 3 00 is showing?

Short term, usually not, because wine tolerates a slow drift. Over several days a warm zone can age bottles faster, so move your best bottles to another zone or cellar until the fan is fixed.

Is the fan always the part that needs replacing?

No. The code says the circuit is open. A loose plug or broken wire gives the same result, so we test the whole fan path before ordering a motor.

How is the price set?

After testing we give you a written price, and nothing is replaced until you agree. Our fan and wiring repairs carry a 30-day workmanship warranty.