Virtual technician
A diagnostic path, not a wall of text
Each check has an expected result, a safe stopping point and a clear next branch.
- 01Identify the exact context
- 02Check safety and urgency
- 03Test one cause at a time
- 04Repair or request help
Global error intelligence
Find the error. Know what to do next.
Meaning, causes, safe checks and professional help for machines, vehicles, devices and software.
- Sources shown
- Safety comes first
- Model-specific context
- English and Spanish
Browse by system
Always match the code to its product. The same characters can have a different meaning in another system.
Open all systemsHome appliancesWashers, dishwashers, ovens, robot vacuumsVehiclesOBD-II, cars, motorcycles, trucksHeating and coolingHVAC, boilers, heat pumps, aerothermalComputers and softwareWindows, macOS, Linux, apps, HTTPPhones and tabletsAndroid, iPhone, iPad, wearablesGaming and entertainmentPlayStation, Xbox, Nintendo, TVsSolar and energyInverters, batteries, EV chargers, UPSNetworks and professionalRouters, NAS, CCTV, alarms, industrial systems
Recently reviewed records
Real entries with product context, risk level and traceable sources.
CodeContextMeaningRiskReviewed
- Adoption FailedUbiquiti · UniFi systemsUbiquiti · UniFi systemsUniFi Adoption Failed: device cannot join the controllerMediumMedium2026-08-21
- 23505PostgreSQL · DatabasesPostgreSQL · DatabasesPostgreSQL 23505: unique constraint violationLowLow2026-08-21
- B200Canon · Inkjet printersCanon · Inkjet printersCanon B200: service-center printer errorHighHigh2026-08-21
- CE-108255-1PlayStation · PlayStation 5PlayStation · PlayStation 5PS5 CE-108255-1: game or application errorLowLow2026-08-21
- U4Daikin · Air conditioningDaikin · Air conditioningDaikin U4: indoor-outdoor transmission faultHighHigh2026-08-21
- F20Vaillant · Gas boilersVaillant · Gas boilersVaillant F20 fault: overtemperature safety shutdownHighHigh2026-08-21
What a useful answer contains
Not just a definition. Every reviewed record helps you understand, check, decide and act.
Meaning and scope
The exact meaning for the right brand, product, model and market.
Safety and urgency
What can wait, what you can check and when you should stop.
Symptoms and causes
Observable symptoms and evidence-backed causes in useful order.
Virtual technician
Safe questions, expected results and the next diagnostic branch.
Repair path
DIY-safe actions, professional work and compatible tools or parts.
Sources and revisions
Manual references, verification state and the latest review date.
Need a professional? Check real coverage first.
Share the code, equipment and checks already completed. Requests are enabled only where a verified provider covers the service and area.