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Model library · Sub-Zero Wine Storage

424

Sub-Zero 424 undercounter wine cabinet repair

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Most common issues on this model

  1. Both zones moving off temperature together across several days
  2. Door seal no longer closing tight against the cabinet
  3. Interior light not turning on with the door

Part of the 400 Series, the 424 is an undercounter wine cabinet with two independent temperature zones. The family includes the 424G with a glass door and the 424S with a solid door, and it is also printed as the 424/O. It is no longer produced.

Most of them live under a counter in a bar or a kitchen run, where the cherry-faced roller shelves are part of the look. When both zones move together, we suspect the door seal rather than two bad sensors, because one common leak affects both sides at once.

We test the gasket, check the condenser airflow, and then look at the light switch, which is quick to sort out. We photograph key findings when it helps explain the repair. Those notes stay with your service record for any future call.

Key features

  • Undercounter wine storage with two independent temperature zones
  • Natural cherry wood faces on the roller-assembly shelves, a stationary shelf, soft lighting, and an electronic control panel with a light
  • From the 400 Series wine storage generation, now out of production
  • The model plate may also read 424/O
→Codes

Error codes this model can show

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 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
424424 questions
What if both zones on my 424 drift together?

Zones that move together usually share one cause, most often the door seal. We test the gasket and airflow before looking at sensors, and quote in writing first.

What is the difference between a 424G and a 424S?

The 424G has a glass door and the 424S has a solid door. We service both, so tell us which one you have when you call.

Should I worry if the light does not come on?

It is not urgent alone, but the door switch can also relate to the seal. We check both, and the work carries a 30-day workmanship warranty.

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Book repair for your 424

Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.

(713) 844-8535
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