REMEHA Quinta Ace 30 Installation And User Manual page 60

10 Troubleshooting
Code Display text
E01.24 Combustion Error
E02.13 Blocking Input
E02.15 Ext CSU Timeout
E02.17 GVC CommTimeout
E02.35 Safety device lost
E02.47 Failed Conn Funct Gr
E04.00 Parameter error
E04.01 TFlow Closed
E04.02 TFlow Open
E04.03 Max Flow temp
E04.07 TFlow Sensor
60
Description
Several combustion errors occurs
with 24 hours
Blocking Input of the Control Unit
from device external environment
External CSU Timeout
Gas Valve Control unit
communication has exceeded
feedback time
Safety critical device has been
disconnected
Failed Connecting Function Groups
Safety parameters Level 5 are not
correct or missing
Flow temperature sensor is either
shorted or measuring a temperature
above range
Flow temperature sensor is either
removed or measuring a
temperature below range
Measured flow temperature above
savety limit
Deviation in flow sensor 1 and flow
sensor 2 detected
Solution
Low 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 out­
let are not blocked.
Check that there is no recirculation of flue
gases.
Blocking input is active:
External cause: remove external cause
Wrong parameter set: check the parameters
CSU time out:
Bad connection: check the wiring and connec­
tors
Faulty CSU: Replace CSU
Communication error with the security kernel:
Restart the boiler
Replace the CU-GH
Communication fault
Carry out an auto-detect
Function group not found:
Carry out an auto-detect
Restart the boiler
Replace the CU-GH
Replace the CU-GH.
Flow temperature sensor short circuited:
Bad connection: check the wiring and connec­
tors
Incorrectly fitted sensor: check that the sensor
has been correctly fitted
Faulty sensor: replace the sensor
Flow temperature sensor open:
Bad connection: check the wiring and connec­
tors
Faulty sensor: replace the sensor
No flow or insufficient flow:
Check the circulation (direction, pump, valves)
Check the water pressure
Check the cleanliness of the heat exchanger
Flow temperature sensor deviation:
Bad connection: check the connection
Faulty sensor: replace the sensor
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