Lock Out - REMEHA Quinta Pro Installation, User And Service Manual

Blocking code Description
Blocking input is active
Blocking input active or frost
protection active
Communication error with the
SCU PCB
Water pressure too low
Gas pressure too low
Configuration error or SU
(1)
PCB not recognised
Configuration error or default
(1)
parameter table incorrect
Configuration error or PSU
(1)
PCB not recognised
Configuration error or param­
(1)
eters
Configuration procedure ac­
(1)
tive
Communication error with the
SU PCB
No flame during operation
Internal error in SU PCB
(1) These blocks are not stored in the error memory
123157 - v.07 - 10082015
Possible cause
External cause
Parameter error
Bad connection
External cause
Parameter error
Bad connection
Poor connection with BUS
SCU PCB not present in
boiler
Water pressure too low
No flow or insufficient flow
Incorrect setting on gas
pressure switch (Gps) on
SCU PCB
Incorrect SU PCB for this boil­
er
Parameter error in the PCU
PCB
Incorrect PCU PCB for this
boiler
-
and unknown
Active for a short time after
switching on the boiler
Bad connection
No ionisation current
-

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 meaning of the error codes can be found in the error table. Note the
error code.
Check/solution
Replace SU PCB
Replace PCU PCB
Replace PCU PCB
Reset
No action
Check whether the PCU PCB has been cor­
rectly fitted in the connector on the SU PCB
Replace SU PCB
the symbol
the symbol
the error code, for example
Note
The error code is needed to find the cause of the error quickly and
correctly and for any support from Remeha.
Remove external cause
Check parameters
Check the wiring
Remove external cause
Check parameters
Check the wiring
Check the wiring
Carry out automatic detection
Check the water pressure
Fill the boiler and the installation with water
Check that the gas valve is fully opened
Check the gas supply pressure
Check whether the Gps has been correctly
fitted
Replace the Gps switch if necessary
and
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
11 Troubleshooting
67