DE DIETRICH C 230 Eco - Manual (Page 18)

18
C 230 ECO 20/02/09 - 300015144-001-C
CS OPEN FAIL 39 The contact inlet CS is open
- Check the cause of the open contact CS
- Reset the box
FAIL. UNKNOWN 254 Fault unknown
- Switch the boiler off and switch back on
- SU: Change them
PCU COM. FAIL
Communication breakdown between
DIEMATIC-m3 and PCU
- Reset the box
- Check the link and the connectors
- Switch the boiler off and switch back on
5 RESET:ON/OFF 5 resets done in less than an hour
- Switch the boiler off and switch back on. The current
error is displayed and can be reset
MC COM.FAIL
Communication error between DIEMATIC
M3 and the boiler module for the CDI radio
(CDR) - Check the link between the DIEMATIC M3 and the boiler
module
Faults Code no. Probable causes Action