Husqvarna WS440HF Workshop Manual

Also see for PP440HF: Workshop manual Workshop manual

708 TECHNICAL INFORMATION AND TROUBLESHOOTINGLower middle, boost transformer.BFAULT Lights up for a short while if over power is detected in the boosttransformer.BRUN Lit when power is directed to the booster. Should follow PWREN.Top right corner, boost transformer.BLED1 BF_HW Hardware trip, same fault as BFAULT.BLED2 BF_PHASE At least one phase missing, hardware.BLED1 & BLED2 BF_TEMP Temperature too high in boost transformer.BLED3 BSF_PHASE At least one phase missing, software.BLED1 & BLED3 BSF_OVERVOLT Over voltage internally in boost transformer.BLED2 & BLED3 BSF_OVERCURR Over current, software.BLED1, BLED2 & BSF_OVERLOAD Overload, blade motor is taking too muchBLED3 current.BLED4 BSF_OVERINPUT Over voltage on incoming.BLED1 & BLED4 BSF_AUTOCAL Unsuccessful automatic calibration.BLED2 & BLED4 BSF_TIMING Internal timer error. Software or MCU broken.BLED1, BLED2 & BSF_D2D I nternal communication error. Most likelyLED4 broken controller board.BLED5 Not in use.BLED6 Indicates if booster tries to take more than 32 Amp (or 25 Amp or 16Amp depending on setting) from the grid.