Series · BI / CL
Sub-Zero BI and Classic built-ins, BI-30U through BI-48SD
Sub-Zero files BI and BW as Legacy Classic, formerly Built In, and sells the same family today as CL. The line runs from a panel: the maintenance instruction for a BI cabinet begins by switching it off at the power control.
Models in the series
| Model | Type | Note |
|---|---|---|
| BI-36R | All refrigerator, 36 inch | Takes the heaviest custom panel in the line |
| BI-36RG | All refrigerator, glass door | — |
| BI-36F | All freezer, 36 inch | — |
| BI-30U | Refrigerator over freezer, 30 inch | — |
| BI-30UG | Refrigerator over freezer, glass door | — |
| BI-36U(ID) | Refrigerator over freezer, 36 inch | — |
| BI-36UG | Refrigerator over freezer, glass door | — |
| BI-36UFD(ID) | French door over a freezer drawer | — |
| BI-42UFD(ID) | French door over a freezer drawer, 42 inch | — |
| BI-36S | Side by side, 36 inch | — |
| BI-42S(ID) | Side by side, 42 inch | — |
| BI-42SD | Side by side with a door dispenser | Door panel is cut for the dispenser bezel |
| BI-48S(ID) | Side by side, 48 inch | — |
| BI-48SD | Side by side with a door dispenser | — |
What fails with age
| Assembly | How it shows |
|---|---|
| Condenser bay behind the grille | Sub-Zero asks for this line to be cleared every six to twelve months. Left longer, the caution in its own instruction is temperature loss or mechanical damage. |
| Door seals | A seal that has taken a set shows first as a warm strip along one edge and a door that needs a push to catch. |
| Hinges and door closing | A Classic door can carry a custom panel of up to seventy five pounds on the 36 inch all refrigerator and all freezer cabinets. Decades of that weight tell in the reveal. |
| Fan motors in the machine bay | The bay behind the grille holds the condenser and its fan. A motor that has started to whine or stall is heard long before it is measured. |
| Control panel and board | A panel gone dark, or a section that will not hold the setting it is given, is answered at the board rather than at the cabinet. |
Parts status
| Part | Supply |
|---|---|
| Door seals | Routine. What has to be right is the door it goes on, which the BI number and its suffix decide. |
| Grille inserts | Sized to the finished height rather than the model: eighty four inches standard, eighty three and eighty eight also supplied. |
| Fan motors | Generally available, and identified from the plate rather than from the shape of the bay. |
| Control boards | Varies by cabinet. A later revision standing in for the original is normal on a line this old. |
| Panel hardware and interior fittings | The thin end. Cleats, spacer and backer panels, bins and trim are where a number turns out to be dead. |
What a visit involves
- 1The BI number and the serial read off the plate, because the suffix decides the door, the panel and the grille before anything else.
- 2Grille off, condenser and fan cleared with a soft brush and a vacuum, which Sub-Zero sets at every six to twelve months on this line.
- 3Doors checked as doors: the reveal across the pair, the closing, and a slip of paper drawn along the seal.
- 4Supply confirmed at the outlet. Sub-Zero specifies a dedicated fifteen amp circuit and a grounding type receptacle for a Classic cabinet, and advises against a ground fault interrupter.
- 5The band and the figure inside it agreed with you before a panel is unhung or a part is ordered.
Repairs on this series usually land in these bands: Door seal or drawer gasket$270–$680; Fan motor, evaporator side or condenser side$320–$700; Control board or user interface$390–$1,000. The figure inside the band is agreed before anything comes apart.
The cabinet sizes are inherited from the 600 Series before it . The Professional cabinet is a separate family: PRO 48 and 648PRO . Everything on this page is booked as refrigerator repair .
Follow-ups
- Is a BI cabinet the same thing as a Classic?
- Near enough. Sub-Zero's model number key files BI and BW as Legacy Classic, formerly Built In, with CL the designation used now, and its current Classic design guide still draws the BI cabinets. So a BI-48SD is a Classic. Tell Sub-Zero Repair Service Denver what is on it, on (720) 770-4189, and we will say which.
- Which grille does a Classic cabinet need?
- The one that matches the finished height, not the model. Sub-Zero supplies the Classic grille insert for an eighty four inch overall height as standard, and for eighty three or eighty eight inches as well. Two cabinets set side by side in one opening take a dual wide grille instead of two singles.
- How heavy a custom door panel can these take?
- Sub-Zero caps the panel at seventy five pounds on BI-36R, BI-36RG and BI-36F and at fifty pounds on every other Classic model, with thirteen pounds for a grille panel. Framed panels start at a quarter of an inch thick; overlay and flush inset panels at five eighths. Give those numbers to the cabinetmaker.
Checked against
- Sub-Zero Classic Design Guide, revised 11/2021 The fourteen Classic models, the grille heights, the custom panel weights and the electrical specification.
- Sub-Zero answer on Classic and PRO 48 condenser cleaning Every six to twelve months, starting at the power control, and what is risked when it is left.
- Sub-Zero model number key BI and BW as Legacy Classic, formerly Built In, and CL as the Classic designation in use now.
- Sub-Zero serial tag locations The plate sits inside the door near the top hinge, and which door depends on the configuration.
Two ways in, and nothing to fill in
Give us the model number and what the cabinet is holding. That is usually enough to know which circuit is at fault before anyone is dispatched — and which parts belong on the van.