Significant Errors (Lifting Module A4) - Kärcher BR 100 R Service Manual

BR/BD 100/250 R BP / RI
6.3 Error memory

6.3.5 Significant errors (Lifting module A4)

x y
Description Error
of module number
0 Short circuit lifting
motor (M20, M30, M40)
Hardware has detected
dangerous
increase.
1 Power supply not
between 14V...50V /
Missing load circuit
supply.
2 Excess module tempe-
rature /
Temperature in load cir-
cuit stage has exceeded
approved value or ambi-
ent temperature is too
high.
3 Short circuit, side brush
motors
Hardware has detected
dangerous current increa-
se.
4 Missing load circuit
voltage at power-On /
Voltage of download elec-
tronic unit below 10V.
Service Manual 08.2007
Brief description/
Error description
current
Synonymous
Run time
error
H1/131 – Short circuit lifting motor.
H2/131
– Short circuit in motor cabling.
– Defect in power stage of lifting
motor.
H1/121 – Main relay coil (K1) open.
H2/121
– Fuse for module supply line is
burned through.
– Wire break of the +- module
supply.
– Defective downloading elec-
tronic unit at drive module.
Anwender- – Blocked lifting motors.
meldungen
– Blocked side brush motors.
– Defective cooling fan.
– Cooling vents are plugged.
– High load currents.
H1/132 – Short circuit, lifting motor.
H2/132
– Short circuit in motor cabling.
– Defect in power stage of side
brush motors.
H1/121 – Refer to y=1.
H2/121
– Short circuited load circuit
supply lines behind main relay
coil (K1).
Troubleshooting
Potential causes
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