How it works
Free error code lookup in 30 languages. Find out what any car OBD-II, washing machine, dishwasher, boiler, air conditioner or fridge error code means and how to fix it.
1Find your code
Type the code from the display or scan tool, or choose your device and brand.
2Understand it
See in plain language what the code means and how serious it is.
3Fix it safely
Follow step-by-step checks and know when to call a professional.
Most searched codes
P0420Catalytic Converter (Bank 1) – Efficiency Below ThresholdP0300Engine – Random/Multiple Cylinder Misfire DetectedP0171Fuel System (Bank 1) – System Too LeanP0442Evaporative Emission (EVAP) System – Small Leak DetectedP0455Evaporative Emission (EVAP) System – Large Leak DetectedP0101Mass Air Flow (MAF) Sensor – Range/Performance ProblemP0128Coolant Thermostat – Coolant Temperature Below Regulating TemperatureP0141Oxygen (O2) Sensor (Bank 1, Sensor 2) – Heater Circuit MalfunctionSamsung 4CWater not filling (water supply problem)LG OEWater not drainingBosch / Siemens E18Water not drainingBosch / Siemens E24Water not drainingBosch / Siemens E15Water leak detected in the baseVaillant F.28Ignition failure, no flame detectedBaxi E133Ignition failure, no flame detectedWorcester Bosch EA 227Ignition failure, no flame detectedDaikin U4Communication error between indoor and outdoor unitsLG CH05Communication error between indoor and outdoor unitsSamsung 22EFridge compartment fan faultLG dHDefrost system faultHTTP 404 Not FoundThe server cannot find the requested page or file.HTTP 403 ForbiddenThe server understood the request but refuses to give access.HTTP 500 Internal Server ErrorThe server hit an unexpected error and could not complete the request.HTTP 502 Bad GatewayA gateway or proxy server received an invalid response from the server behind it.HTTP 503 Service UnavailableThe server is temporarily unable to handle the request because it is overloaded or under maintenance.0xEF CRITICAL_PROCESS_DIEDA process that Windows needs to run stopped unexpectedly.0xA IRQL_NOT_LESS_OR_EQUALA driver or system process tried to access memory it was not allowed to use, usually because of a faulty driver.0x1A MEMORY_MANAGEMENTA serious memory management error occurred, often caused by faulty RAM or a driver.0x50 PAGE_FAULT_IN_NONPAGED_AREAWindows tried to use memory that does not exist or is not available, often due to a driver, security software or faulty RAM.0x3B SYSTEM_SERVICE_EXCEPTIONAn error occurred while a system service was running, often caused by a driver (frequently graphics) or security software.