315 TROUBLESHOOTING, CARE AND MAINTENANCE5.1 General Instructions⚠ WARNING+ Do not make any improper changes to the equipment.⚠ CAUTION+ Damaged or worn components may affect your safety and the life of the equipment.Therefore, immediately replace damaged or worn components. In such a case, contact thecontract partner. The equipment must not be used until it has been repaired. If necessary, useonly original spare parts.ड ATTENTION+ In addition to the instructions and recommendations for maintenance and care given here,additional service and/or repair work may be necessary; this must only be carried out byauthorised service technicians.5.2 Faults and Fault DiagnosisThe equipment undergoes regular quality controls during production. Nevertheless, faults ormalfunctions may occur. Frequently, individual parts are responsible for these disturbances, anexchange is usually sufficient. Please refer to the following overview for the most common errors andhow to correct them. If the equipment still does not function properly, contact your contract partner.Fault Cause SolutionConsole only showslines Safety key missing Check if the safety key is inserted andplace it inRunning belt tilted Running belt not aligned Align running belt in accordance withthe instructionsRunning belt slipsthrough/stopsBelt tension/lubrication notokCheck belt tension/lubrication inaccordance with the instructionsScraping noises Running belt scrapes,because it is not alignedAlign running belt in accordance withthe instructionsDisplay does not showanythingCheck plug connections(cables)Mains switch on “on”, make sure that thesafety key is insertedNo pulse display+ Sources of interference inthe room+ Unsuitable chest strap+ Position of the cheststrap incorrect+ Batteries empty+ Remove sources of interference (e.g. mobile phone, speakers, WLAN,mover- and cleaning robot, etc.)+ Use suitable chest strap (seerecommended accessories)+ Reposition chest strap and/ormoisten electrodes+ Change batteries