“I wasn’t sure of my model and they helped me find the tag inside the cabinet over the phone, then showed up with the right parts the first time. No wasted trips. Refreshingly competent.”
Owner guide · Redwood City
Your Sub-Zero model and serial tag is the key to ordering the correct part the first time. On most units it lives inside the fresh-food compartment — here is exactly where to look and what to read.

Quick answer. On most Sub-Zero refrigerators, the model and serial number tag is inside the fresh-food compartment — typically on the upper-left or upper-right side wall, or just behind the top grille. Integrated columns, undercounter units, and wine storage hide the tag in slightly different spots. Reading the full model and serial correctly lets us match factory-certified, genuine OEM Sub-Zero parts to your exact unit, so a Redwood City repair is done right the first visit.
Sub-Zero prints a small metal or paper tag with both the model number and the serial number, and the two work together. The model tells us the configuration and generation of your unit; the serial pins down the exact production run, which matters because parts like control boards, fans, and gaskets changed over the years even within one model line.
Because Sub-Zero builds so many formats — built-ins, integrated columns, PRO models, undercounter units, and wine storage — the tag is not always in the same place. The table below covers where to look on each, with the most common spots on Redwood City kitchens first.
| Unit type | Where the tag usually lives | Tip |
|---|---|---|
| Built-in (BI, 600 Series) | Upper side wall of the fresh-food compartment, or behind the top grille | Open the fridge door fully and look up and to the side |
| Integrated column (IC / IT) | Inside the cabinet on an upper side wall, behind the custom panel | Tag is inside, not on the panel — open the door to read it |
| PRO (PRO 48) | Inside the fresh-food side near the top, or behind the lower grille | The glass door makes the upper-side tag easy to spot |
| Undercounter / drawer | Inside the door opening on the side frame, or behind the kick grille | You may need to slide a drawer out to see it |
| Wine storage column | Inside the cabinet on an upper side wall, near the top racks | Remove the top shelf if a rack blocks the view |

The model number is the shorter code that identifies the appliance family and configuration — for example a 600 Series built-in or a PRO 48. The serial number is the longer string unique to your specific unit, and it encodes when and where the unit was built. When you call us, having both written down saves a step and helps us arrive with the right genuine OEM parts already on the van.
A common mix-up is reading only part of the model, or confusing the serial with an installer's date sticker or an energy-guide label. The Sub-Zero tag will clearly say model and serial, and the genuine tag is metal or a durable printed label, not a handwritten note. If the tag is faded or hard to reach behind a custom panel, snap a clear photo with your phone rather than guessing — a partial or wrong number is the single most common reason a part shows up that does not fit.
Sub-Zero built-ins are not generic appliances, and their parts are not interchangeable across the catalog. Two refrigerators that look identical in a kitchen can take different evaporator fans, different door gaskets, or a different revision of a control board. The model and serial are how we tell them apart without opening the unit twice.
For Redwood City homeowners this is the difference between a one-trip repair and a return visit. When we know the exact model before we arrive — whether it is an Emerald Hills estate built-in, a Redwood Shores wine column, or a downtown undercounter unit — we can stage the correct factory-certified, genuine OEM Sub-Zero parts and finish in a single appointment. That is also why our diagnostic visit is structured to confirm the part need with the model in hand before any work is quoted.
Our diagnostic service call is $89 and is waived when you book the repair, and every repair carries a 365-day warranty on all labor. Reading us your model and serial when you book helps us bring the correct genuine OEM parts the first time.
Once you have read the tag, the leading letters or series number tell you which family your unit belongs to. That is what lets us bring the correct genuine OEM parts the first time.
| Series / prefix | Product family | Where it is installed |
|---|---|---|
| BI | Built-in refrigerator / freezer | Flush, panel-ready in cabinetry |
| IC / IT | Integrated column | Fully hidden behind custom panels |
| PRO | Pro series (e.g. PRO 48) | Statement built-in with a glass door |
| 600 Series | Classic dual-compressor built-in | Older built-in installations |
| UC / UR | Undercounter and drawers | Islands, bars, and outdoor kitchens |
| Wine | Wine storage column | Estate and entertaining kitchens |
A two-minute look before you call makes the whole repair smoother. Beyond the model and serial, a short description of the symptom and when it started lets us anticipate which parts are likely involved, so we load the van accordingly for your Redwood City visit.
If you cannot safely reach the tag — common on tall integrated columns or tightly built-in units — do not force anything. Tell us the unit type and rough age and we will identify it on site as part of the diagnosis.
A quick check inside the unit is all it takes. Here is the order we walk owners through.
Swing the refrigerator door all the way open so you can see the upper side walls and the area behind the top grille.
Look at the upper-left and upper-right interior side walls — on most built-ins and columns the metal or printed tag is here.
If it is not on a side wall, look just behind or below the top grille at the front of the cabinet.
On undercounter, drawer, and wine units, look on the side of the door opening or behind the lower kick grille; slide a drawer or shelf if needed.
Record the full model number and the serial number, or take a clear phone photo so nothing is missed.
Share both numbers when you book so we arrive with the correct genuine OEM parts for your exact unit.
Straight answers
On most Sub-Zero refrigerators it is inside the fresh-food compartment — usually on an upper side wall or behind the top grille. Integrated columns, undercounter units, and wine storage tuck it inside the cabinet or near the lower grille. Open the door fully to read it.
The model number identifies the appliance family and configuration; the serial number is unique to your exact unit and production run. Parts can change between serials within one model, so we use both to match the correct genuine OEM Sub-Zero part.
Sub-Zero parts are not interchangeable across the catalog. The model and serial let us identify the right control board, fan, gasket, or sealed-system part before we arrive, so your Redwood City repair is finished in one visit instead of two.
Do not force anything. Tell us the unit type and rough age and we will identify it on site during the diagnosis. The $89 service call is waived when you book the repair, so the visit still moves you forward.
Reviews
“I wasn’t sure of my model and they helped me find the tag inside the cabinet over the phone, then showed up with the right parts the first time. No wasted trips. Refreshingly competent.”
“Our built-in Sub-Zero was running warm on the fridge side but fine in the freezer. The tech traced it to the sealed system, showed me the pressure readings, and had it holding temperature again. The $89 service call was credited to the repair and the labor is covered for a year — exactly what was quoted.”
“Searched "Sub-Zero repair near me" and they came out the next day. The clear-ice maker had stopped filling — turned out to be the inlet valve and fill tube. Working perfectly now and they tested it before leaving.”
FAQ
On most Sub-Zero built-in refrigerators, the model and serial tag is inside the fresh-food compartment — typically on the upper-left or upper-right interior side wall, or just behind the top grille. Open the door fully and look up toward the top corners. Integrated columns, undercounter units, and wine storage place the tag slightly differently, usually inside the cabinet or near the lower grille.
The serial number identifies your exact unit and when it was produced. That matters because Sub-Zero revised parts like control boards, fan motors, and gaskets over the years even within a single model line. Two units that look identical can need different revisions of the same part, and the serial is how we order the one that actually fits yours.
Sub-Zero appliances are built in many configurations, and their parts are not generic or interchangeable. The model number tells us the family and layout; the serial pins down the production run. Together they let us match factory-certified, genuine OEM Sub-Zero parts to your unit so the replacement runs to the original specification and the repair holds.
We need the full model and serial to be sure. A partial number, or confusing the serial with an installer date sticker or energy-guide label, is the most common reason a part arrives that does not fit. If the tag is faded or hard to reach, take a clear phone photo instead of copying it by hand and share that when you book.
On integrated columns and Sub-Zero wine storage, the tag is inside the cabinet — usually on an upper interior side wall — not on the custom outer panel. Open the door fully to read it. On wine units you may need to slide out the top rack or shelf to see the tag clearly. If a panel blocks access, we will identify the unit on site.
It helps a lot but it is not required. When you share the model and serial at booking, we can stage the correct genuine OEM parts and often finish your Redwood City repair in one visit. If you cannot find the tag, tell us the unit type, rough age, and the symptom, and we will identify it during the diagnosis.
The diagnostic service call is $89 and is waived when you book the repair. Having your model and serial ready lets us bring the right parts and quote accurately, and you always get the price in writing before any work begins. Every repair we complete is backed by a 365-day warranty on all labor.
Call (650) 800-5431 for a same-day or next-day visit, or book online. $89 service call, waived with your repair.