DE DIETRICH INNOVENS PRO MCA 45 - 65 - 90 - 115 - Manual (Page 44)

Code Messages Description Checking / solution
B00 BL.CRC.PSU The PSU PCB is incorrectly
configured
Parameter error on the PSU PCB
4 Contact the professional who takes care of maintenance of
the appliance
B01 BL.MAX BOILER Maximum flow temperature
exceeded
The water flow in the installation is insufficient
4
Check the circulation (direction, pump, valves)
B02 BL.HEATING
SPEED The increase in flow temperature
has exceeded its maximum limit
The water flow in the installation is insufficient
4
Check the circulation (direction, pump, valves)
4 Check the water pressure
Sensor error
4
Contact the professional who takes care of maintenance of
the appliance
B07 BL.DT OUTL RET. Maximum difference between the
flow and return temperature
exceeded
The water flow in the installation is insufficient
4
Check the circulation (direction, pump, valves)
4 Check the water pressure
Sensor error
4
Contact the professional who takes care of maintenance of
the appliance
B08 BL.RL OPEN The RL inlet on the PCU PCB
terminal block is open
Parameter error
4
Contact the professional who takes care of maintenance of
the appliance
Bad connection
4
Contact the professional who takes care of maintenance of
the appliance
B09 BL.INV. L/N
4
Contact the professional who takes care of maintenance of the appliance
B10
B11 BL.BL INPUT
OPEN The BL inlet on the PCU PCB
terminal block is open
The contact connected to the BL inlet is open
4 Contact the professional who takes care of maintenance of
the appliance
Parameter error
4 Contact the professional who takes care of maintenance of
the appliance
Bad connection
4 Contact the professional who takes care of maintenance of
the appliance
B13 BL. PCU COM
BL.COM PCU-D4 Communication error with the
SCU PCB
Bad connection
4 Contact the professional who takes care of maintenance of
the appliance
SCU PCB not installed in the boiler
4
Contact the professional who takes care of maintenance of
the appliance
B14 BL.WATER MIS. The water pressure is lower than
0,8 bar
Not enough water in the circuit
4
Top up the installation with water
B15 BL.GAS PRESS Gas pressure too low Incorrect setting of the gas pressure switch on the SCU PCB
4
Check that the gas valve is fully opened
4 Contact the professional who takes care of maintenance of
the appliance
B16 BL.BAD SU The SU PCB is not recognised Wrong SU PCB for this boiler
4 Contact the professional who takes care of maintenance of
the appliance
B17 BL.PCU ERROR The parameters saved on the
PCU PCB are impaired
Parameter error on the PCU PCB
4 Contact the professional who takes care of maintenance of
the appliance
7. Troubleshooting MCA 45 - 65 - 90 - 115
43 28/08/12 - 300024828-001-01