Soil compactor , • hand-guided and/or remote-controlled, • with a compaction plate and a compaction drive which drives the compaction plate , • with an operating condition determining device for determining one or more operating conditions, o in particular from the group of engine data, engine temperature, engine oil pressure, engine oil level, fuel level, fuel consumption, particle filter condition, particle filter regeneration, oscillating metal buffer wear, maintenance interval, operating hours, condition data of the drive, battery condition, battery charge condition, spring-damper systems, fluid levels, V-belt wear, oscillating metal buffer wear, fuel consumption, exciter bearing overheating, air filter contamination, incorrect or externally produced air filter used, location (e.g. GPS data) and compression measurement, characterised in that • the soil compactor has a screen , and • the operating condition determining device comprises a fault detecting unit for detecting faulty operating conditions among the determined operating conditions, • wherein the fault detection unit comprises a memory with a fault list (L) of potential faulty operating conditions associated with digitised operating instructions (A), and • wherein the fault detection unit is configured to output, via the screen , a fault message for a detected faulty operating condition based on the fault list (L), comprising an output of the linked digitised operating instruction (A). • hand-guided and/or remote-controlled, • with a compaction plate and a compaction drive which drives the compaction plate , • with an operating condition determining device for determining one or more operating conditions, o in particular from the group of engine data, engine temperature, engine oil pressure, engine oil level, fuel level, fuel consumption, particle filter condition, particle filter regeneration, oscillating metal buffer wear, maintenance interval, operating hours, condition data of the drive, battery condition, battery charge condition, spring-damper systems, fluid levels, V-belt wear, oscillating metal buffer wear, fuel consumption, exciter bearing overheating, air filter contamination, incorrect or externally produced air filter used, location (e.g. GPS data) and compression measurement, characterised in that o in particular from the group of engine data, engine temperature, engine oil pressure, engine oil level, fuel level, fuel consumption, particle filter condition, particle filter regeneration, oscillating metal buffer wear, maintenance interval, operating hours, condition data of the drive, battery condition, battery charge condition, spring-damper systems, fluid levels, V-belt wear, oscillating metal buffer wear, fuel consumption, exciter bearing overheating, air filter contamination, incorrect or externally produced air filter used, location (e.g. GPS data) and compression measurement, • the soil compactor has a screen , and • the operating condition determining device comprises a fault detecting unit for detecting faulty operating conditions among the determined operating conditions, • wherein the fault detection unit comprises a memory with a fault list (L) of potential faulty operating conditions associated with digitised operating instructions (A), and • wherein the fault detection unit is configured to output, via the screen , a fault message for a detected faulty operating condition based on the fault list (L), comprising an output of the linked digitised operating instruction (A). <EOS>