Troubleshooting
BR/BD 100/250 R BP / RI
Page 136 / 171
Service Manual 08.2007
6.2.3 Lifting module (A4) and Cleaning module (A3) error messages
Module involved:
A3, A4
Module clone:
Currently up to 2 lift modules and up to 2 cleaning modules are
optionally possible.
Display code:
Hy/xxx for errors/warnings xxx of lift module y=(1, 2) Cy/xxx for errors/
warnings xxx of cleaning module y=(1, 2)
C1 = Cleaning module clone A3 for scrubbing and vacuuming
C2 = cleaning module clone A3/1 for pre-sweeping
H1 = lift module clone A4 for scrubbing and vacuuming
H2 = lift module clone A4/1 or A4/2 for pre-sweeping
Module
Fault
classification
Display code
Action
C
Irreparable me-
mory error
Cy/001
1. Replace A3 clone concerned.
Hy/001
1. Replace A4 clone concerned.
Supply of printed
circuit board is
incorrect
Hy/011
1. Check if 13 – 14 V are present at A4/X3-1, in this
case replace A4 clone concerned.
2. Search for fault in bus line 1 or at A1/X4-1.
H
Fault detected in
jumpers of lifting
motors
Hy/022
1. Disconnect lifting motor (M20) A4/X5-2,6.
2. Perform key switch (S0) reset. If the error
remains,
3. Disconnect lifting motor (M30) A4/X4-2,6.
4. Perform key switch (S0) reset. If the error
remains,
5. Replace A4 clone concerned, otherwise 6. search
where the chassis erroneously has a connection
to the battery ground. Eliminate this connection.
7. Remove coal dust from lifting motors (M20,M30)
A4/X5,X4.
8. If necessary, replace motors.
Fault detected in
jumper of side
brush
Hy/023
Refer to Hy/022, steps 3-8, however, for A4/DR3.
Temperature
sensor is
defective
Hy/031
1. Betreffenden A4-Klon tauschen.
C
Error when
storing setup
parameters in
cleaning module
Cy/101
1. Change menu in parameter setup.
2. Change the setup of cleaning module (A3).
3. Attempt to change M4” to another motor type
value.
4. Leave setup, save and acknowledge.
5. Perform key switch (S0) reset.
6. If the error remains, replace A3 clone in question.
Otherwise:
7. Produce the original parameters in the setup
menu.
