Riello Condexa Pro3 Series - Page 35

35
ERROR LIST
Nr. No. on the PC Cause Troubleshooting
A10 10 Internal error Replace the Slave card.
A11 11 Internal software error Press the rest button.
A12 12 Internal error Replace the Slave card.
A16 16
The limit thermostat contact is open with
the burner off
Connector disconnected or defective.
Limit thermostat defective.
A17 17
Delivery sensor error due to exceeding the
limit temp.
Check that the ow rate in each unit’s water circuit is
sufcient.
A18 18
Return sensor error due to exceeding the
limit temp.
Check that the ow rate in each unit’s water circuit is
sufcient.
A19 19
Flue gas sensor tripped for overtemper-
ature > 80°C (fan operates at maximum
speed)
Heat exchange insufcient on the ue gas side in-
side the exchanger.
Clean the ue gas side exchanger.
A20 20
The ame goes out too late after the gas
valve closes
Check the proper operation of the gas valve.
Replace the gas valve.
A21 21 Internal error Replace the Slave card.
A22 22
The slave board has generated a type "E”
error for more than 24 hours
Check the history of "E" type errors
A23 23 Internal clock error
It is an error inside the clock.
Can be caused by a transient power failure.
Perform a manual reset to restore functioning.
A24 24 Fan error
The measured fan speed varies too much with the
read speed.
Check the fan.
Check the fan's electrical connection.
Replace the fan.
A25 21 Internal error Replace the Slave card
Nr. No. on the PC Cause Troubleshooting
E33 33 Line and neutral inverted Restore the correct line-neutral electrical connection
E34 34
Reset button error.
It was pressed more than 7 times in 30
min.
Wait for the error to disappear.
If the error did not disappear after max 40 min, re-
place the Slave card.
E35 35
Water differential pressure switch error
(contact open)
Check that the ow rate in each unit’s water circuit is
sufcient.
Replace the water pressure switch (tar.500 lt/h).
E36 36 Internal error Replace the Slave card.
E37 37 Flame detection error
Clean the electrodes.
Replace the electrode.
E38 38 Flue gas sensor short circuiting
Check the ue gas sensor connector.
Replace the ue gas sensor.
E39 39 Flue gas sensor with contact open
Check the ue gas sensor connector.
Replace the ue gas sensor.
E40 40 The frequency is not 50 Hz Check the frequency of the electrical network
E41 41 Internal error Replace the Slave card.
E42 42 Flow sensor in short circuit
Check the delivery sensor connector.
Replace the delivery sensor.
E43 43 Delivery sensor with contact open
Check the delivery sensor connector.
Replace the delivery sensor.
E44 44 Return sensor short circuiting
Check the return sensor connector.
Replace the return sensor.
E45 45 Return sensor with contact open
Check the return sensor connector.
Replace the return sensor.
E46 46
Delivery sensor error due to exceeding the
limit temp.
Check that the ow rate in each unit’s water circuit is
sufcient.
E47 47
Return sensor error due to exceeding the
limit temp.
Check that the ow rate in each unit’s water circuit is
sufcient.
E48 48
Flue gas sensor error due to exceeding
the limit temp. (fan turns at max with this
error).
Check that the ow rate in each unit’s water circuit is
sufcient.
Clean the water side and ue gas side exchanger.
E49 49 Insufcient or absent earth connection.
Check the earth connection.
Replace the Slave card.