Riello Condexa Pro3 Series - Error List; Master Board Error Codes; Slave Board Error Codes

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ERROR LIST
11 ERROR LIST
A and E type errors possibly encountered with Condexa Pro3 IN-EXT are given in the tables below.
In this sense it should be specied that an E-type error (volatile error) is a fault which automatically disappears as soon as the fault
is resolved; whilst A type (non-volatile error) is a fault that will only disappear after resetting manually when the problem has been
resolved.
11.1 Master board errors
Nr. No. on the PC Cause Troubleshooting
A16 10 Internal error Replace the Master card
A18 12 Internal error Replace the Master card
A20 14 Internal error Replace the Master card
Nr. No. on the PC Cause Troubleshooting
E02 51 NTC1 open (NTC1: delivery sensor)
Primary delivery sensor not connected or interrupt-
ed.
E04 53 NTC3 open (NTC3: boiler sensor) DHW sensor not connected or interrupted.
E18 67 NTC1 short circuiting (NTC1: delivery sensor) Primary circuit delivery sensor short circuit.
E20 69 NTC3 short circuiting (NTC3: boiler sensor) DHW sensor short circuiting.
E23 28 Internal error Replace the Master card
E24 29 Internal error Replace the Master card
E25 0/30 Internal error Replace the Master card
E26 31 Internal error Replace the Master card
E32 33 Slaves not present
Check that the bipolar switches of the individual
units are “ON”.
Check the addresses on the slave.
Check the slave BUS connection.
Replace the Master card.
Replace the Slave card.
E34 42 Internal 50HZ error The main frequency is not 50Hz
11.2 Slave board errors
Nr. No. on the PC Cause Troubleshooting
A01 1 5 failed ignition attempts
Check that the gas tap is open.
Check for the presence of electric discharge between
the two ignition electrodes.
Check the ignition cable.
Do not open the gas valve.
Replace the electronic card (Slave).
A02 2
Multiple unsuccessful attempts due to
ame ionisation problems
Clean the electrodes.
Replace the igniter plug.
Replace the ignition cable.
A04 4
Water side limit thermostat (> 90°C) trip-
ping, version SCHEDA43
Poor circulation in the primary circuit.
Limit thermostat defective.
A05 5
Gas valve coil interrupted. Replace the gas valve.
False gas valve connector contact. Check the gas valve connector.
Defective gas valve connector. Replace the gas valve connector.
Maximum temperature thermostat tripped
(> 90°C) while burner was on.
Poor circulation in the primary circuit.
Limit thermostat defective.
A06 6
No or bad ground connection.
BOARD 43 only
Check the earth connection.
Replace the Slave card.
A07 7 Internal error Replace the Slave card.
A08 8 Internal error Replace the Slave card.
A09 9 50Hz The main frequency is not 50Hz