Manufacturer warranty on a built-in: what it actually covers

Three periods, not one

The shape Sub-Zero has used on residential refrigeration for many years runs like this: a full two-year warranty on the entire product covering parts and labor, a full five-year warranty on the sealed system covering parts and labor, and a twelve-year limited warranty on sealed-system parts alone, with labor from the sixth year onward paid by the owner. Wolf cooking equipment and Cove dishwashers carry their own terms and they are not these terms. Treat those numbers as the shape rather than as your contract, because coverage varies by model and model year, and a unit sold as a floor model or put into a commercial or rental setting is usually handled differently. The phrase doing most of the work is 'sealed system', and it has a specific meaning.

• Sealed system: compressor, condenser, evaporator, filter-drier and the tubing connecting them
• Not the sealed system: evaporator and condenser fans, defrost heaters, thermistors, control boards, gaskets, hinges, ice maker, lighting, shelving
• So the long tail of coverage protects the parts that rarely fail, not the parts that usually do

When the clock starts

On this equipment the warranty period generally begins at the date of original installation rather than the date of purchase, and in a remodel those are not the same date. An appliance bought in March and installed the following February has eleven months of calendar that do not count against it — but only if you can show when it went in. Keep the sales invoice, the installer's paperwork, or the closing document if the unit came with a new house, and register the appliance when it is installed. Registration adds no time and coverage does not depend on it; what it does is put model, serial and date on file so nobody reconstructs them from memory in year four. If the appliance came with a house you bought, the remaining term normally follows the appliance for a residential owner.

What it does not cover, which is a longer list than owners expect

A factory warranty covers defects in materials and workmanship. It is not a maintenance contract and it is not insurance, and nearly every argument about warranties comes from that distinction. A condenser choked with dust and salt is not a defect. A door gasket worn out by twenty years of use is not a defect. Damage from a surge, a brownout or a lightning strike is not a defect in the appliance, whatever it did to the control board. Neither is a unit installed without the clearances the installation instructions require, which is an installer problem being blamed on the machine. Consumables are excluded — water filters, air filters, bulbs on older units. Food loss is almost always excluded, and the place to ask about that is your homeowner's policy.

• Neglect and wear: a fouled condenser, a worn gasket, a blocked drain, a filter never changed
• Installation faults: inadequate ventilation, an opening cut wrong, a unit never leveled
• External events: surge, brownout, flood, physical damage after delivery
• Consumables and cosmetics: filters, bulbs, scratches and dents after installation
• Anything made worse by unauthorized service or non-factory parts

Who is allowed to do the work

This is the part that costs people money. A manufacturer pays only the service providers it has authorized, so a warranty repair has to be booked through the factory's own channel — the customer-care number printed in the manual, or the service locator on the manufacturer's website — rather than through whoever answers the phone first. An independent company cannot file a claim it is not authorized to file, and a repair carried out by an unauthorized shop can give the manufacturer grounds to decline a later claim on the same component. If the appliance is inside its covered period, make that call first, every time. Once the period has passed, or for work the warranty never covered anyway — a condenser cleaning, a gasket, a drain, a fault the installation caused — who does the work is your choice.

What actually gets claimed

The failures that fill a technician's week are the ordinary ones: evaporator fan motors, defrost heaters and thermistors, door gaskets, ice maker modules, water inlet valves, control boards. Every one of those is covered during the full-warranty years at the start and by nothing at all afterward. The long sealed-system term exists for genuine sealed-system events — a compressor that will not start on a good supply, an evaporator leak, a restriction at the drier — which are the repairs expensive enough to justify a twelve-year clause. Owners tend to read the longest number on the page as though it covered the whole appliance for twelve years. It does not, and that changes how you think about a unit in its eighth year: the covered failures are the rare, costly ones, and the everyday ones are yours.

Making a claim go smoothly

Before calling anyone, find the model and serial plate — on a full-height built-in it is usually on the upper left interior wall of the fresh-food compartment, and on an undercounter unit behind the base grille — and write both down with the installation date and whatever proves it. Describe the fault by what the appliance is doing rather than what you think is wrong: which compartment, what it reads on an independent thermometer, when it started, what changed in the house. Ask two questions when you book. Whether a diagnostic charge applies if the fault turns out to be covered, and what happens if the technician finds an excluded cause, which is the moment a covered visit turns into a bill. Keep the paperwork from every visit: a file of dated service records settles an argument about what was replaced, and when.