The parts authority page for tag locations, model families, serial-matched OEM parts and wrong-part risks.
The model and serial tag is usually on the upper-left interior wall, behind the lower grille, inside the door frame or on the rear/top of pull-out drawers and wine units. Have one clear photo ready before a Moraga visit because BI, IT, IC, PRO, 600/700 and wine units use different fans, boards, gaskets and ice-maker parts.
Last updated: June 6, 2026. Editorial responsibility: Major Appliance Service of Moraga. Pricing is reviewed quarterly.
A model number tells the technician the family and configuration. A serial number tells the production era and part revision. Both are needed because Sub-Zero parts are not interchangeable across decades.
This guide is also linked from every symptom page because it changes price and timing. A known model can make a single trip possible; an unknown model can turn a repair into diagnosis plus parts order.
Key facts:
Check the upper-left interior wall, grille area, door frame, drawer top or wine-unit rear/top tag before calling.
Photograph the grille, condenser area, water shutoff, door edge or cabinet path that matches the symptom so route planning and floor protection are not guessed.
Ask for the tested cause, part name, labor, price and warranty wording before authorizing anything beyond the diagnostic range.
The model family and serial revision decide which fan, gasket, board, thermistor or ice-maker module can be quoted.
A useful invoice should name the OEM part, labor, price and warranty terms for future warranty or resale questions.
Use one readable model and serial photo before the visit so the technician can match fans, boards, gaskets, sensors or ice-maker parts to the exact Sub-Zero family.
Write down fresh-food, freezer or wine-zone readings in °F, plus the setpoints and the time measured, before any reset or forced defrost changes the evidence.
| Symptom / condition | First test | Published planning range | Technician note |
|---|---|---|---|
| BI built-ins | Upper-left interior wall or behind grille. | Parts matched by serial | Common in newer built-in kitchens. |
| IT / Designer columns | Interior frame or hinge side. | Parts matched by serial | Panel-ready access matters. |
| IC / Classic / 600/700 | Interior wall or grille area. | Parts matched by serial | Older Moraga units need availability check. |
| PRO series | Interior frame or data plate area. | Parts matched by serial | Different control and gasket profiles. |
| Wine / undercounter | Rear, top or pull-out data plate. | Parts matched by serial | Do not force pull-out without access plan. |
These page-specific planning ranges are written for Moraga homes. They keep the diagnostic branch, included work, price and time window visible before a written estimate is approved.
| Service / symptom | What is included | Price range | Time window |
|---|---|---|---|
| Model and serial proof visit | Readable tag photo, model family, serial revision and symptom match. | $145-$195 | 45-90 min |
| Serial-matched gasket repair | Profile, door handing, panel alignment and compression check. | $390-$905 | 1-3 hours |
| Board revision or harness match | Board number, connector check, output test and warranty wording. | $570-$1,325 | 1-4 hours |
| Ice-maker module by model | Water path test, module match and harvest-cycle verification. | $475-$935 | 1-3 hours |
| Unavailable-part decision review | Supersession, age, part availability and cabinet replacement impact. | $185-$370 | 30-75 min |
| Serial-matched fan or thermistor repair | Model lookup, OEM part match, install and temperature verification. | $395-$1,115 | 1-4 hours |
Final price is driven by serial-matched part availability, model family, wrong-part risk and whether a second visit is avoidable. A written estimate should name the model, part, labor, price and warranty terms.
Moraga Country Club
Older premium built-ins and multiple appliance suites are common. Plan cabinet-safe pull-out, floor protection and model/access photos before dispatch. Read the local page.
Rheem Valley
Short route, water-line and ice-maker complaints show up often. Have the model tag plus a photo of the fill tube or shutoff area ready before calling or booking. Read the local page.
Sanders Ranch
Open lots and dry-season dust can load condensers quickly. Condenser airflow should be checked before sealed-system work is assumed. Read the local page.
Campolindo / Bollinger Canyon
Panel-ready units and hillside access can change labor time. Quiet-hour scheduling, parking notes and a clear reseat path reduce callbacks. Read the local page.
Nearby service context: Orinda, Lafayette, Canyon and Walnut Creek; Moraga ZIPs 94556 / 94570; landmarks include Saint Mary's College, Moraga Commons, Rheem Valley and the Lafayette-Moraga Trail.
Our Sub-Zero WS-30 in Sanders Ranch needed a fan, but the serial number changed the part revision. The technician matched the OEM motor before arriving, replaced it and verified 37 °F fresh-food. The $695 repair fit the $390-$905 serial-matched range and avoided a second visit.
The door gasket on our 648PRO in a family kitchen with panel fronts and busy evening use looked standard, but the profile was model-specific. The tech used the serial photo, installed the correct OEM gasket and checked panel compression. The 2-hour repair cost $585, matching the $570-$1,325 gasket range.
Our 632 near Bollinger Canyon showed intermittent alarms. The technician used the model tag, checked board output and sensor readings, then quoted the correct board revision. The repair cost $545 and stayed within the $475-$935 range because the part was matched first.
Diagrams are illustrative technical aids. Real appointment evidence should use photos from the homeowner's unit.
Call the published number or book online. Keep the model/serial photo, temperature readings and access notes ready so the visit can be planned around the actual symptom.
The invoice should list the part name or OEM number, labor, price, warranty terms and post-repair reading when temperature is involved. That paper trail matters for future warranty questions and helps show that the repair matched the actual model, not a generic Sub-Zero label.
Moraga homes often combine premium built-ins, hillside access, dry-season condenser dust and custom cabinet panels. For Sub-Zero model and serial number guide, that means the technician should document model/serial, temperatures, airflow and access before quoting. The first diagnostic range on this page is $145-$195, and cabinet-safe access can change labor even when the part is simple.
Photograph the model and serial tag, the symptom area, current °F readings and the access path. In Sanders Ranch, the useful extra photo is usually the grille, door edge, water shutoff or panel-ready cabinet path. Those details help decide whether the visit stays in the $145-$195 diagnostic branch or needs parts staged.
Stop resetting once you have an alarm, warm reading or repeated symptom. A reset may temporarily quiet the display but it can erase timing, pull-down behavior and error evidence. Record the temperatures, note the time, move food if fresh-food temperature is above 40 °F and leave the evidence available for diagnosis.
The same symptom can use different fans, boards, gaskets or ice-maker modules across BI, IT, IC, PRO, 600/700 and wine families. A serial photo lets the technician check part revisions and availability before quoting. The model-proof diagnostic on this page is $145-$195.
Check the upper-left interior wall, behind the lower grille, inside the door frame, on the drawer top or at the rear/top of wine and undercounter units. Take a clear photo with both model and serial visible, not just a partial model name.
