REMEHA Quinta Ace Installation, User And Service Manual page 69

Code Text display
E00.20 Flue gas temperature sensor is either removed or
measure a temperature below range
E00.21 Flue gas temperature sensor is either shorted or
measure a temperature above range
E00.40 Water pressure sensor is either removed or measure a
temperature below range
E00.41 Water pressure sensor is either shorted or measure a
temperature above range
E01.04 5x Error of unintended Flame Loss occurance
E01.12 Return tempearture has a higher temperature value
then the flow temperature
E02.04 Parameter Error
E02.13 Blocking Input of the Control Unit from device external
environment
E02.15 External CSU Timeout
E02.17 Gas Valve Control unit communication has exceeded
feedback time
E02.35 Safety critical device has been disconnected
7625116 - v.04 - 17012017
Possible cause/check
Open circuit in flue gas sensor:
Bad connection: check the wiring and connectors.
Incorrectly fitted sensor: check that the sensor has
been correctly fitted.
Faulty sensor: replace the sensor.
Flue gas sensor short-circuited:
Bad connection: check the wiring and connectors.
Incorrectly fitted sensor: check that the sensor has
been correctly fitted.
Faulty sensor: replace the sensor.
Hydraulic pressure sensor open:
Bad connection: check the wiring and connectors.
Incorrectly fitted sensor: check that the sensor has
been correctly fitted.
Faulty sensor: replace the sensor.
Hydraulic pressure sensor short-circuited:
Bad connection: check the wiring and connectors.
Incorrectly fitted sensor: check that the sensor has
been correctly fitted.
Faulty sensor: replace the sensor.
Flame loss occurs 5 times:
Purge the gas supply to remove air.
Check whether the gas tap is properly open.
Check the gas supply pressure.
Check the operation and setting of the gas valve
unit.
Check that the air inlet and flue gas discharge flues
are not blocked.
Check that there is no recirculation of flue gases.
Flow and return reversed:
Bad connection: check the wiring and connectors.
Water circulation in wrong direction: check the circu­
lation (direction, pump, valves).
Incorrectly fitted sensor: check that the sensor has
been correctly fitted.
Malfunctioning sensor: check the Ohmic value of the
sensor.
Faulty sensor: replace the sensor.
Configuration error or factory settings incorrect:
Parameters are not correct:
Restart boiler
Reset and
Replace the control panel if it is defective.
Blocking input is active:
External cause: remove external cause.
Wrong parameter set: check the parameters.
CSU time out:
Bad connection: check the wiring and connectors.
Faulty CSU: replace CSU.
Communication error with the safety PCB:
Bad connection: check the wiring and connectors.
Control unit failure: replace the control unit.
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12 Troubleshooting
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