Troubleshooting (Heat Reclaim Ventilation) SiBE31-801_C337 Troubleshooting7.4 “6A” Damper System Error (Alarm)RemoteController LCDDisplayError Code 6A Inspection Blinking Unit No. BlinkingApplicableModelsHeat reclaim ventilationMethod ofMalfunctionDetectionMeasurement of damper motor limit switch ON/OFF time and temperatures detected by outdoorand indoor air thermistor.MalfunctionDecisionConditions When damper system error (alarm) and indoor (or outdoor) thermistor error are generated atthe same time. When damper system error (alarm) occurs and values of indoor and outdoor air thermistormeet frost conditions.SupposedCauses Faulty damper motor or limit switch Faulty indoor air thermistor Faulty outdoor air thermistor Frosting Broken wire in cable Faulty contact in connector (including relay connector) Faulty control PCB assemblyTroubleshootingCautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.Check error record onmalfunction history display inservice mode.Are "6A" and "64" or"65" recorded?NOYESAre "64" and "65"recorded?NOYESIs "64" recorded? NOYESTake corrective measuresspecified for damper systemerror (alarm).(Remove the cause of problem,and reset display.)Take corrective measuresspecified for damper systemerror (alarm) and indoor andoutdoor air thermistor errors.Take corrective measuresspecified for damper systemerror (alarm) and outdoor airthermistor error.Take corrective measuresspecified for damper systemerror (alarm) and indoor andoutdoor air thermistor error.
