Kärcher BR 100 R Service Manual page 137

BR/BD 100/250 R BP / RI
6.2.3 Lifting module (A4) and Cleaning module (A3) error messages
Module Fault
classification
Error when
H
storing
setup parameters
in the lift module
Communications
error between
cleaning module
(A3) and head
CPU (A1)
K
Communications
error between lift
module (A4) and
head CPU (A1)
Lift module (A4)
does not receive
voltage at the
power electronic
unit
H
Lift module (A4)
does not receive
12-14V control
voltage
Service Manual 08.2007
Display code
Hy/101 1. Change menu in parameter setup.
2. Change to the setup of lift module (A4).
3. For example, attempt to change "max. speed M2/
D-S2" to another value.
4. Leave setup, save and acknowledge.
5. Perform key switch (S0) reset.
6. If the error remains, replace A4 clone in question.
Otherwise:
7. Produce the original parameters in the setup.
Cy/111 1. Check if bus plugs A3/X1 and A3/X2 are connec-
ted.
2. Check if bus lines A3/X2-2, A3/X1-2, A3/X2-5,
A3/X1-5 completely contact the head CPU (A1).
3. Search/repair error in bus cables.
4. If the error remains, replace A3 clone in question.
Hy/111 1. Check if bus plugs A4/X2 and A4/X3 are connec-
ted.
2. Check if bus lines A4/X2-2, A4/X3-2, A4/X2-5,
A4/X3-5 completely contact the head CPU (A1).
3. Search/repair error in bus cables.
4. If the error remains, replace A4 clone in question.
Hy/121 1. Check, if main relay (K1) is closed and if relay coil
lines are completely connected with head CPU
(A1).
2. Check fuse cut-out (F4) of lifting module and
replace, if necessary.
3. Check, if short circuit is between battery voltage
and GND behind the main relay (K1). Short circuit
must be located and repaired.
4. Check, if the battery voltage is between 14..50V.
If not, check the battery.
5. If the error remains, replace A4 clone in question.
Hy/122 1. Check if 13 – 14 V are present at A4/X2-1, in this
case replace A4 clone concerned.
2. Search for fault in bus line 1 or at A1/X4-1.
Troubleshooting
Action
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