Brands differ in their panels, their codes and their tempers — but every one of them answers to the same instruments. The workshop keeps factory service data for the major families, and the bench method covers the rest.
A nameplate missing from the wall isn't a refusal — it's a phone call. Rare brands get an honest yes-or-no on the intake call, before any fee exists.
The north side keeps more premium kitchens than it advertises, and those machines deserve better than a generalist's shrug. A Sub-Zero is refrigeration built the old way — dual compressors, serviceable everything, a cabinet designed to outlive its warranty twice over. Diagnosing one is exactly the kind of work this bench was set up for: readings against published spec, parts through the proper channels, and no experimenting on a machine worth more than the van.
Viking and Thermador ranges earn the same respect for the opposite reason: they're professional iron scaled for a home, and their igniters, thermostats and modules are engineered to be replaced rather than mourned. Owners are sometimes told these brands are 'dealer only.' They aren't — they're documentation-only, and the documentation rides in the van.
The service visit is the same $95 whatever the nameplate says. Parts for premium brands cost what they cost — on their own line, at their documented price, signed before ordering, like every other part here.
Usually, and often gloriously so; longevity is the whole argument for the brand. The readings tell the truth about yours, and the verdict comes with the same remaining-life arithmetic every older machine gets.
No — coverage questions get checked on the intake call first, the same free warranty triage every young machine gets. If the factory should carry your fault, you'll be pointed there before any fee exists.
What changes: the code tables, the panel layouts, the fasteners, and sometimes the patience required — European machines like their own procedures, and the workshop follows them rather than fighting them. Service data subscriptions cover the major families, which is why a model number on the intake call sharpens everything downstream.
What never changes: the order of operations. Supply before suspicion, readings before parts, a written figure before work. A Speed Queen and a Thermador get very different screwdrivers and exactly the same discipline.
Call with the brand and model — the intake sorts service data, parts likelihood and your window in minutes.