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TM800_D00165_00_M_XXEN/06.2015
6. Troubleshooting
6.1 Error
messages
The following errors are recognised by the BM800 module and indicated on the display. The buzzer
emits a beep code corresponding to the error number every 10 seconds. If an optional input/output
module exists and if the function "device error" is set in the "Relay" settings menu, also the digital
output 1 will also switch.
No. Display
Description
Task
1
DISPLAY ERROR
Display defective
Replace BM800 module*
2
I
2
C-BUS ERROR(X)
Error code (X):
1 I²C bus error
2
Ack error when sending the
address
3
Ack error during data trans-
mission
4
Ack error while receiving the
address
5
Ack error while receiving
data
6
Communication problem
Interrupt supply voltage to
TM800 for ≥ 3 minutes. If the
error continues to exist,
BM800 module or I²Cbus cable is
defective -> replace*.
3
RTC ERROR
Clock chip defective
Replace BM800 module*
4
FLASH ERROR
Memory module D5 defective
Replace memory module D5
(socketed), replace BM800 mod-
ule*
5
Address internal
ERROR (XXX)
Address of the TM800 on the
internal BMS bus is already occu-
pied (XXX=current address)
Change the address of TM800 in
the menu
6
Overflow ERROR (03)
More than 80 alarm messages
are present.
Reduce the amount of messages
Overflow ERROR (05)
More than 1000 device failure
messages are present
Reduce the amount of messages
Overflow ERROR (07)
More than 99 text messages are
present
Reduce the amount of messages
Overflow ERROR (08)
Automatic correction of the his-
tory memory is carried out
because of voltage interruption.
None
Overflow ERROR (11)
Stack Error
Make a note of the error code.
Contact Bender Service.
7
Checksum ERROR
Program memory defective
Replace BM800 module*
