4. Installation et montage - Kessel

9. Malfunctions and remedial measure faultsFaults Causes EliminationBattery voltage too highRelay errorThe display of the controldoes not show anything or showsthe message "Mains failure"The display shows themessage "Extraction"Other possible faultsThe water level in the preliminarysedimentation is exceptionallyhigh, while the aeration exhibits anormal water level- Battery not available- Battery contact error- Relay contact in control unit isstuck together- The plant is currentless- The display is defective- Maximum extraction time tooshort- Uncontrolled inflow to the plant(e.g. rain water, plant leaks)- Water cannot drain off (e.g.backup, compressed air syphonhose not in drain)- Floating switch too low (settingsee floating switch)- Excessive impact load on plant- Compressed air syphon for thefeeding is clogged- Insert a battery- Check battery polarity and seat- Replace the control unit- Check pre-fuse and / or earth leakagecircuit breaker- Call after-sales service, adaptmaximum extraction time- Ensure that there is no inflow ofexternal water into the plant- Provide free drainage.- Replace the floating switch- Control the impact load- If it is not possible to restore thefunction even during longer manualoperation, remove the compressedair syphon and rinseclean- Adapt the inflow quantities or expandthe plant- Connect the plant to the grid- External water may not penetrateinto sewage treatment plantsfor a longer period of time. If necessaryseal concrete tank oreliminate other causes.The water level in the preliminarysedimentation and in the aerationis exceptionally high- Plant undersized- Mains failure- Exceedingly high external waterinflow. In case of heavy rainfallsdue to surface water or on soakedsoils due to a leaky tank.- Compressor does not work- Compressed air syphon for clearwater extraction is clogged- Pressure hose leaky or no longerconnected.- Check function in manual mode.If it is not possible to start up thecompressor, call the after-salesservice.- If it is not possible to restore thefunction even during longer manualoperation, remove the compressedair syphon and rinseclean.- Check connections and pressurehose and if necessary restore126