REMEHA CALORA TOWER GAS 15S EX, Инструкция по установке и обслуживанию

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Code Description Checking / solution
Su : 15
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
Checking the gas supply pressure
4
Check whether the gas pressure control system has been correctly
fitted
4
Replace the gas pressure control system if need be
Su : 16
The SU PCB is not recognised Wrong SU PCB for this boiler
4
Replace the SU PCB
Su : 17
The parameters saved on the PCU PCB
are impaired
Parameter error on the PCU PCB
4
Replace the PCU PCB
Su : 18
The PSU PCB is not recognised Wrong PSU PCB for this boiler
4
Replace the PSU PCB
Su : 19
The boiler has not been configured The PSU PCB has been changed
4
Revert to the factory settings: ¼ See chapter "Return to the factory
settings Reset Param", page 74
Su : 21
Communication error between the PCU
and SU PCBs
Bad connection
4
Check that the SU PCB has been correctly put in place on the PCU
PCB
4
Replace the SU PCB
Su : 22
No flame during operation No ionization current
4
Purge the gas supply to remove air
4
Check that the gas valve is fully opened
4
Check the 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
Su : 25
Internal error on the SU PCB
4
Replace the SU PCB
Su : 26
The DHW tank sensor is disconnected or
short circuited
Sensor error
4
Check that the sensors are operating correctly
4
Check that the sensor has been correctly fitted
Su : 27
The sensor on the plate exchanger outlet
is disconnected or short circuited
Sensor error
4
Check that the sensors are operating correctly
4
Check that the sensor has been correctly fitted
Su
:
28
An HL tank is detected whilst the boiler
cannot control it.
This message disappears after 10
seconds if the boiler can control the HL
tank
4
Wait for 10 seconds to see whether the error persists
Su : 29
Communication error between the PCU
and SCU-s191 PCBs
Bad connection
Su : 30
Communication error between the SCU-
s191 PCBs and the solar control system
Bad connection
Su : 31
The TAS is in open circuit
4
Bad connection
4
No water in the DHW tank
Remarks:
Domestic hot water production is stopped but may nevertheless be
restarted for 72 hours after the boiler is switched off.
The tank is no longer protected.
If a tank without Titan Active System® is connected to the boiler, check
that the TAS simulation connector is fitted to the SCU-s191 PCB.
CALORA TOWER GAS 15S EX CALORA TOWER GAS 25S EX
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9. Troubleshooting
22/04/2016 - 300026141-001-07 89