Import the manuals you already carry around. Then ask in plain English, the way you’d ask the guy who has been doing this twenty years. Faultbench runs right on your laptop, tells you what to check first, and shows you the page it got that from so you can see for yourself before you touch anything. No signal required.
Go on, click something. This one’s live. Pick an issue, hit Check, then click a [1] and the real manual opens on the page that answer came from.
qwen3:4bDescribe the fault
Describe the issue in your own words. The more detail you provide, the better.
Common issues (click to use)
Add the manuals you already use. Service manuals, IOMs, wiring docs, whatever you have saved. Faultbench indexes them on your machine and that’s the last time you have to think about it.
Tell it what the unit is doing. Same words you’d say out loud standing at the thing. Nothing to learn, nothing to scroll.
You get the manual name and the page. Click it and the page opens with the passage lit up. Check it yourself, then go fix the unit.
And you need one fault code table out of it.
Which one has the procedure in it? Good luck.
So pulling it off the manufacturer’s site isn’t happening.
Faultbench keeps the documents and the search on the laptop that’s already in your van.
I mean that. It answers from the manuals you gave it, and every answer stays tied to where it came from, so you can go and look. You’re the one who decides what to do about it.
With the thermostat calling for cooling, check for 24 VAC across the contactor coil. If it is present and the contactor does not pull in, replace the contactor.
The demo up there does this for real. Click a citation, the actual PDF opens on the cited page, passage highlighted.
Basements. Rooftops. Mechanical rooms. That crawlspace you’d rather not talk about. Manuals, search, model, all of it sits on the device.
It’s built around faults. What the unit is doing, and what the manual says to check.
Import a manual once. It stays indexed on that machine. No account, no re-upload, no expiry date on something you already own.
Grouping by manufacturer and model, and searching inside one piece of kit, isn’t built yet. It’s next.
The model runs local. Your questions are not going off to somebody’s cloud to get answered.
Your manuals sit on your disk, in a plain database file you own.
Internet’s a convenience. It shouldn’t be the thing that unlocks the product.
Matters more than people think, especially if your shop’s documentation is not something you want sitting on someone else’s server.
Faultbench is in alpha. I want techs who will run it against real manuals and tell me where it falls over. Windows and macOS, free, no card.
Windows and macOS. No card, no account.
One email, when it’s ready. That’s it.
Straight about where it is. Importing manuals, asking in plain English, getting an answer with the page attached: all working offline today. One click citations, a library you can organise, a bundled runtime so you never install anything else, signed installers. Those are still coming. That’s why there’s a list here and not a download button.