DiagMachina

Remote fault diagnosis for heavy machinery

The fault, found by measuring.

An AI assistant guides your technician step by step on construction equipment, tractors, generators and marine engines. No part is replaced on a guess, and an expert signs off before any part over €500.

Describe my fault See pricing

Free trial: 4 messages a day to describe your fault and get the first checks.

Technical drawing of an articulated wheel loader: the ECU, the wiring harness, the supply pump and the water separator are marked with numbers. 1 2 3 4
  1. ECU codes read on the display, memory cleared
  2. Wiring harness 3.8 to 3.9 Ω at the ECU, good
  3. Supply pump codes 7b and 7C, solenoid valves 3.4 Ω: pump sent for exchange
  4. Water separator water and sludge drained, filters replaced
Drawn byDiagMachina
Sheet01
SubjectArticulated wheel loader, real case in Tenerife
MethodClear, measure, eliminate

Komatsu WA500-3 wheel loader in Tenerife: after more than ten mechanic visits, the cause was located in 3 hours.

How a diagnosis works

You write, by voice or with photos, from the workshop or the site. The assistant asks the questions in the right order, like an experienced diagnostician.

  1. Describe the machine

    Photo of the data plate, symptoms, codes on the display. Older machines without a diagnostic port are welcome.

  2. Measure in order

    One action at a time: where to measure, with which tool, what reading to expect, and the safety precautions.

  3. Confirm the cause

    The assistant only concludes when a measurement proves it. You get a written report.

  4. Above €500, the expert signs off

    If the part is expensive, your readings go to the expert. Answer within 48 h, before anything is ordered.

Pricing

An on-site diagnostic call-out often costs hundreds of euros, even around €1,000 on a large machine. Here you pay for the fault found, remotely.

Price plateLaunch prices excluding VAT, valid until 31 March 2027
PlanWhat's includedLaunch priceAction
Per fault
AI diagnosis One machine, 7-day access, final report. Expert sign-off included if the part costs more than €500. 59 €excl. VAT, then €89 from April 2027 Choose
AI + expert diagnosis The expert reviews your readings and confirms the cause within 48 h. Up to 3 sign-offs, 14-day access. 179 €excl. VAT, then €249 from April 2027 Choisir
Expert video call For complex faults: up to 2 h on video with the expert, plus a written summary. 450 €excl. VAT, then €590 from April 2027 Book
Subscriptions for workshops and fleets
Workshop 3 technicians, unlimited machines, 2 expert sign-offs a month. 99 €excl. VAT per month, then €149 Subscribe
Fleet 10 technicians, 6 sign-offs a month, monthly fault report for your fleet. 299 €excl. VAT per month, then €399 S’abonner

Prices exclude taxes, VAT depending on your country [to be completed]. Subscriptions with no commitment, activated within 24 h. Launch prices are valid until 31 March 2027.

The loader ten mechanics couldn't fix

A civil works contractor in Tenerife. Alarm, loss of power, and more than ten mechanic visits, including a brand specialist, without finding the cause.

Repair orderCause located in 3 h
Machine
Komatsu WA500-3
Year
2004
Engine
SA6D140E-3
Symptom
CALL alarm, code E01, loss of power
  1. Reading

    Codes read on the dashboard and on the ECU display, without a laptop.

  2. Draining

    Water separator drained: water and sludge in the diesel. Fuel and filters replaced.

  3. Clearing

    The ECU memory had never been cleared: old codes were muddling the reading. Memory cleared.

  4. Sorting

    Only two codes remain, 7b and 7C: an injection pump supply fault.

  5. Measuring

    Pump solenoid valves and wiring measured: 3.4 Ω at the pump, 3.8–3.9 Ω at the ECU. The electrical side is ruled out.

  6. Conclusion

    The supply pump goes for a factory exchange, instead of parts being swapped at random.

Clear, measure, eliminate: that is the method the assistant applies to every diagnosis. [Result after the pump replacement and customer testimonial: to be completed]

What we diagnose

All the heavy machinery for which a good technician is hard to find, including older models and Chinese brands.

  • Excavators, wheel loaders, bulldozers, dumpers, compactors
  • Forklifts and telehandlers
  • Tractors and farm machinery
  • Generators and compressors
  • Marine engines, sailboats and motorboats
  • ElectricalElectronics, sensors, harnesses, ECUs
  • HydraulicsPumps, control valves, cylinders, pressures
  • EnginesDiesel and petrol: fuel supply, injection, starting
  • DrivetrainGearboxes, axles, torque converters and brakes

See all machines

The expert behind the assistant

Photo of Pierre to be added

Pierre

Signing expert

Pierre has been sailing for more than 25 years and is a professional skipper. He maintains and repairs machines every day: electrics, electronics, hydraulics, engines.

He designed the assistant's method, and he personally signs off every diagnosis that leads to a part costing more than €500.

Frequently asked questions

Do I need a special diagnostic tool?

No. A multimeter is usually enough, sometimes a pressure gauge. The assistant tells you exactly what to use and where to measure.

My machine is old and has no diagnostic port.

That's our ground. On many machines the codes can be read on the dashboard or the ECU, and the rest can be measured.

What if the assistant can't find it?

You move up to the expert: a written review of your readings, or a video call for complex faults.

Can I use my workshop manual?

Yes: send photos of the relevant pages. The assistant uses them for the exact values of your machine.

Why an expert sign-off above €500?

So that no expensive part is ordered on a guess. The expert reviews the readings before you spend anything.

What happens to what I send?

Your messages and photos are used for your diagnosis. Details are in our terms of use and privacy policy.

Machine down? Describe the fault.

Start the diagnosis