Husqvarna WS442HF Workshop Manual page 70

8 TECHNICAL INFORMATION AND TROUBLESHOOTING
Lower middle, boost transformer.
BFAULT
BRUN
Top right corner, boost transformer.
BLED1
BLED2
BLED1 & BLED2
BLED3
BLED1 & BLED3
BLED2 & BLED3
BLED1, BLED2 & BSF_OVERLOAD
BLED3
BLED4
BLED1 & BLED4
BLED2 & BLED4
BLED1, BLED2 & BSF_D2D I
LED4
BLED5
BLED6
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Lights up for a short while if over power is detected in the boost
transformer.
Lit when power is directed to the booster. Should follow PWREN.
BF_HW
BF_PHASE
BF_TEMP
BSF_PHASE
BSF_OVERVOLT
BSF_OVERCURR
BSF_OVERINPUT
BSF_AUTOCAL
BSF_TIMING
Not in use.
Indicates if booster tries to take more than 32 Amp (or 25 Amp or 16
Amp depending on setting) from the grid.
Hardware trip, same fault as BFAULT.
At least one phase missing, hardware.
Temperature too high in boost transformer.
At least one phase missing, software.
Over voltage internally in boost transformer.
Over current, software.
Overload, blade motor is taking too much
current.
Over voltage on incoming.
Unsuccessful automatic calibration.
Internal timer error. Software or MCU broken.
nternal communication error. Most likely
broken controller board.