Our methodology.
Arizona Appliance Repairs publishes 94 repair cost guides, 332 model-specific fault guides, 42 DIY walkthroughs and a 94-term glossary. This page explains where those numbers come from, how we verify parts, where we draw safety lines, and what we do when we get something wrong.
Part numbers: two sources or we don't publish
Every OEM part number on this site is verified against at least two independent parts retailers or a manufacturer catalogue before it ships. We do not publish a part number from memory or from a single listing, and we do not repeat aftermarket cross-reference lists as though they were manufacturer supersessions — those are the seller's compatibility claim, not the manufacturer's.
That standard costs us coverage on purpose. Of 332 model guides, 50 currently carry part numbers (115 numbers in total). The rest are blank because we could not verify them to that standard yet — not because the repair is unusual.
Where a part genuinely splits by revision suffix or sub-variant, we say so on the row rather than picking one and hoping. Where a manufacturer sells no such part at all — for example the rear bearing on Whirlpool's current front-load platform, which is only serviced as a complete outer tub — we say that too, because the alternative is sending you to buy a kit that will not fit.
Where the repair costs come from
Cost ranges are our own figures, built from Arizona market labour rates and OEM parts pricing, and expressed as ranges because a real quote depends on your machine, your location and what the technician finds. They are not manufacturer list prices and they are not scraped from anywhere. Treat them as what a fair local quote should land near — if you are quoted far outside the range, that is worth a second opinion.
The repair-or-replace advice is deliberately willing to tell you not to repair something. A countertop microwave costs less than a service call; a bearing job on a budget front-loader costs more than the machine is worth. We would rather say so and lose the referral than sell you a repair that does not make sense.
Safety boundaries on DIY content
Our DIY guides stop where the danger starts, and the microwave guides are the clearest example. A microwave's high-voltage capacitor stores a charge that can kill you and holds it after the appliance is unplugged, so every microwave DIY guide on this site is limited to work outside the cabinet or inside the cooking cavity — filters, bulbs, the waveguide cover, turntable parts, cleaning. Magnetron, diode, capacitor, interlock and control-board work is documented in the cost guides as professional work and deliberately has no DIY guide at all.
Several guides also stop mid-procedure. If a fresh waveguide cover still arcs, or a turntable coupler will not turn under power, the instructions tell you to put the screwdriver down rather than keep going.
Corrections we've published
Appliance data goes stale, and we get things wrong. When we do, we fix it on the page rather than quietly. Recent examples:
- LG compressor warranty. We previously described a covered compressor repair as costing “$0 under warranty”. LG's own warranty document shows the compressor part is covered to 10 years but the labour only to 5 (1 year on pre-2022 units), and LG defines the “sealed system” as the condenser, drier, tubing and evaporator — with the compressor as a separate item. A quote described as sealed-system work is therefore not automatically covered. Every affected page was corrected.
- Discontinued GE lid lock. A part number we published was superseded within days of going live. It now shows the current number, with the old one listed as a supersession so the search still finds it.
- Part numbers we withdrew. Numbers that failed re-verification have been removed rather than left up, including cases where two credible sources disagreed about which of two motors fits a model.
What we cite
Safety, regulatory and warranty claims carry a Sources block linking the primary document — the EPA on refrigerant handling, the FDA on microwave interlock requirements, the NFPA on dryer fire causes, FoodSafety.gov on the 40°F rule, the CPSC on carbon monoxide and recalls, and manufacturer warranty PDFs. A page only cites a source that supports a claim that page actually makes; we do not attach a block of official-looking links to guides that make no such claim.
Directory listings and ratings
Business listings are compiled from public sources and show public Google ratings and review counts as collected. We do not invent reviews, and we do not publish accusations about named businesses. Verified and flagship partners are labelled as such so you can tell the difference. Any business can claim its listing to correct the record.
Who writes this
Guides are researched and maintained by the Arizona Appliance Repairs editorial team against the standards above. Where a claim rests on a manufacturer document or a federal safety rule, we link it so you can check it yourself rather than take our word for it.
Found something wrong? Tell us — corrections are the fastest way this site gets better. Reach us through the contact form or at (951) 499-7758.
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