
Error
code
Description
Probable causes
Checking / solution
e[17
Problem on the gas valve
Bad connection
4
Check the wiring between the PCU PCB and the
gas valve
4
Check that the SU PCB is correctly in place
SU PCB faulty
4
Inspect the SU PCB and replace it if need be
e[32
The boiler flow sensor has short-
circuited
Bad connection
4
Check the wiring between the PCU PCB and the
sensor
4
Check that the SU PCB is correctly in place
4
Check that the sensor has been correctly fitted
Sensor fault
4
Check the Ohmic value of the sensor
4
Replace the sensor if necessary
e[33
The boiler flow sensor is on an
open circuit
Bad connection
4
Check the wiring between the PCU PCB and the
sensor
4
Check that the SU PCB is correctly in place
4
Check that the sensor has been correctly fitted
Sensor fault
4
Check the Ohmic value of the sensor
4
Replace the sensor if necessary
e[34
The fan is not running at the right
speed
Bad connection
4
Check the wiring between the PCU PCB and the
fan
Fan defective
4
Check for adequate draw on the chimney
connection
4
Replace the fan if need be
e[35
Flow and return reversed
Bad connection
4
Check that the sensor has been correctly fitted
Sensor fault
4
Check the Ohmic value of the sensors
4
Replace the sensor if necessary
Water circulation
direction reversed
4
Check the circulation (direction, pump, valves)
e[36
The flame went out more than 5
times in 24 hours while the burner
was operating
No ionization current
4
Purge the gas supply to remove air
4
Check that the gas valve is fully opened
4
Checking the gas supply pressure
4
Check the operation and setting of the gas valve
unit
4
Check that the air inlet and flue gas discharge flues
are not blocked
4
Check that there is no recirculation of flue gases
e[37
Communication failure with the
SU PCB
Bad connection
4
Check whether the SU PCB has been correctly
fitted into the connector on the PCU PCB
4
Change the SU PCB
e[38
Communication error with the
SCU PCB
Bad connection
4
Check the wiring between the PCU and SCU PCBs
4
Reset
df
and
dV
4
Restore parameters with Recom
SCU PCB not
connected or faulty
4
Replace the SCU PCB
e[39
Shutdown input in locked-out
mode
Bad connection
4
Check the wiring
External cause
4
Check the device connected to the
BL
contact
Parameter incorrectly
set
4
Check the parameter
IN.BL
IniControl For C 330 / C 630 ECO
6. Troubleshooting
260216 - 7600717-001-06
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