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8. Troubleshooting
8
Troubleshooting
8.1
Anti-hunting
8.2
Messages (Code type Bxx or Mxx)
Code Messages
B00
BL.CRC.PSU
B01
BL.MAX BOILER
B02
BL.HEATING SPEED
104
When the boiler is in Anti-short-cycle operating mode, the symbol ?
flashes.
1. Press the "?" key.
The message Operation assured when the restart temperature
will be reached is displayed.
In the case of failure, the control panel displays a message and a
corresponding code.
1. Make a note of the code displayed.
The code is important for the correct and rapid diagnosis of the
type of failure and for any technical assistance that may be
needed.
2. Switch the boiler off and switch back on.
The boiler starts up again automatically when the reason for the
blocking has been removed.
3. If the code is displayed again, correct the problem by following the
instructions in the table below:
Description
The PSU PCB is incorrectly
configured
Maximum flow temperature
exceeded
The increase in flow
temperature has exceeded its
maximum limit
This message is not an error message but an item of
information.
Checking / solution
Parameter error on the PSU PCB
Set the type of generator again in the menu
4
#CONFIGURATION (Refer to the original rating plate)
The water flow in the installation is insufficient
Check the circulation (direction, pump, valves)
4
The water flow in the installation is insufficient
Check the circulation (direction, pump, valves)
4
Check the water pressure
4
Check the cleanliness of the heat exchanger
4
Sensor error
Check that the sensors are operating correctly
4
Check whether the boiler sensor has been correctly fitted
4
MCA 35
15/06/12 - 300022160-001-01
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