Troubleshooting; Maintenance & Service - Biddle CA Anleitung

4
. . Maintenance & service
4.1 Cleaning the BMS module
4.2

Troubleshooting

40
error code
n
c
Clean the outside of the BMS module with a damp cloth and a
solution of household detergent. Do not use solvents.
4.2.1 Error message on output port
If the output port O1-O1 of the BMS module shows that an
error has occurred, an error code will appear on the display.
The error message may include the word SERVICE.
Handling error messages works in the same way as with the
standard control panel. Also, the error codes have the same
meaning. See chapter Faults in the unit's manual.
Note:
The error F4 can indicate an faulty or missing bridge on
input port Ri-C. Check the presence and functionality of
this bridge.
4.2.2 The unit does no longer work satisfactorily
Follow the directions in chapter Faults of the unit's manual to
check whether or not the unit is defective.
Follow the directions below to check whether or not the BMS
module is defective. To this effect you need to open the BMS
module (see step 1 in paragraph 2.3).
Caution:
Work ESD safe: use an antistatic wrist strap. Non-compli-
ance may result in damage to electronic components of the
printed circuit board.
1. Check that the bridge on input port G-HE is in place.
The heating is switched off when the bridge is missing.
2. Check that the bridge on input port Ri-C is in place.
The thermostat in the BMS module is not working when
the bridge is missing. In this case the display of the module
will show an F4 error.
BMS M
ODULE