Blocking code
Description
No flame during operation:
No ionisation current:
Vent the gas supply to remove air
Check that the gas valve is fully opened
Check the gas supply pressure
Check the operation and setting of the gas valve unit
Check that the air supply inlet and flue gas outlet are not blocked
Check that there is no recirculation of flue gases
SU PCB internal fault: replace the SU PCB
(1) These blocks are not stored in the error memory
11.1.2 Lock out
If the blocking conditions still exist after various start attempts, the boiler
goes into lockout (also called error). The boiler will also lock out if an error
is signalled anywhere in the boiler. An error code will appear on the dis
play. The error code is displayed as follows:
In a red flashing display:
the symbol
the symbol
the error code, for example
The meaning of the error codes can be found in the error table. Note the
error code.
Important
The error code is needed to find the cause of the error quickly and
correctly and for any support from Remeha.
Press the
key for two seconds. If the error code continues to display,
search for the cause in the error table and apply the solution.
Important
If the display does not show
but rather , the boiler must be
switched off and then switched on again 10 seconds later before
the error can be reset.
Tab.37 Error codes
Error code
Description
Parameter storage unit PSU not found:
Bad connection: check the wiring
Safety parameters not OK:
Bad connection: check the wiring
Faulty PSU: replace PSU
Flow temperature sensor short circuited:
Bad connection: check the wiring
Sensor not connected or incorrectly connected:
Check that the sensor has been fitted properly
Check that the sensors are operating correctly
Faulty sensor: replace the sensor if necessary
Flow temperature sensor open:
Bad connection: check the wiring
Sensor not connected or incorrectly connected:
Check that the sensor has been fitted properly
Check that the sensors are operating correctly
Faulty sensor: replace the sensor if necessary
11 Troubleshooting
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