Sub-Zero Designer Wine (IW) Code 35 C 33: condenser fan speed too low

What 35 C 33 means

Designer Wine (IW) units such as the IW-30 and IW-30R use a DC condenser fan, and 35 C 33 means that fan is set too low. The control has found the condenser fan running below the speed it should for the conditions, so heat may not be leaving the unit fast enough. Owners may notice the unit running longer than usual, warm air building at the grille, or zones that slowly lose their chill on hot days.

Common causes of 35 C 33

Dust or lint packed on the grille and condenser
An obstruction slowing the condenser fan blade
A DC condenser fan motor that cannot reach speed
A control output that drives the fan too slowly

✓ One safe check you can try

1. Clean the grille with a soft brush or vacuum. 2. Make sure nothing in front of the grille blocks airflow. 3. Feel for airflow at the grille after the unit starts. 4. Reset at the breaker once. 5. If 35 C 33 returns, call us.

! Why to stop there

The condenser fan sits in the machine compartment on live wiring
Measuring fan speed and control output needs proper tools
A weak fan left in place can overwork the compressor

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.

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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 C 3335 C 33 questions

Can a dirty grille cause 35 C 33?

It can contribute. Lint on the grille and condenser makes the fan work harder and can slow it. Cleaning the grille is a good first step before calling us.

Is my compressor at risk?

If the condenser fan stays slow, the compressor runs hotter and longer. That is why we recommend checking the fan soon rather than waiting. A clean grille helps meanwhile.

What does the repair include?

We clean the condenser, test the fan and the control output, and give a written price for any part. Our work carries a 30-day workmanship warranty.