About Hearthline
Hearthline explains what a careful owner can check, and where that checking should stop.
Hearthline is an independent information project about household appliances in the United States. It explains symptoms, published error codes, and ordinary maintenance. It does not dispatch technicians, sell parts, or book repairs.
What the site is for
Readers come with a specific failure: a washer full of water, a dryer that tumbles cold, a dishwasher that will not empty, a refrigerator that cannot hold temperature, an oven that stalls, a microwave that runs without heating, or a disposal that only hums. Each guide separates the checks a careful owner can do with the power off from the work that belongs to a qualified technician.
The categories follow the machines people actually own: washing machines, dryers, dishwashers, refrigerators and freezers, ovens and stoves, and microwaves and disposals. Codes that many current manuals share are collected in the error code library. Recurring care is on the maintenance checklist.
How a guide is prepared
A page starts from the owner's manual and the public service literature for that kind of appliance, not from a guessed parts list. Where a temperature, a vent practice, or a reset step is stated, it is tied to a source a reader can open, such as an FDA food-safety page, a CPSC dryer-vent page, or the support site of the manufacturer. Model-specific button sequences and part numbers are left in those manuals when they change from one serial range to the next.
Codes are included only when they appear across many current manuals for that brand, and the page says to confirm them for the exact model. GE blink patterns and older service modes are not printed as if they were universal. Microwave cabinets, sealed refrigeration systems, and gas valves are described as stop points, not as procedures.
Corrections
Manuals are revised, and a control panel can change inside one brand. If a guide is wrong for a model you own, use the contact form and include the model number from the tag. Corrections are how the library stays closer to the documents than to rumor.
Hearthline does not publish a street address, a phone number, or an email address. Questions about a guide go through the contact form.
Hearthline does not claim a staff of named technicians, a shop address, a license, or years in business. Those details are not invented to make an information site look like a service company.