Display codes
35
Condens 5000W – 6720813952 (2019/02)
E 9 2 7 7 2 The safety temperature sensor has captured a
temperature in excess of 95 °C.
Check the water pressure of the wall mounted gas condensing boiler
and vent the heating system and wall mounted gas condensing
boiler.
Check whether it is possible to achieve a sufficient flow via the
heating system.
Check the cabling and function of the pump and safety temperature
sensor. Replace the component if necessary.
E 9 2 8 5 2 The boiler return temperature sensor has detected
a temperature higher than 95 °C.
Check the water pressure of the wall mounted gas condensing boiler
and vent the heating system and wall mounted gas condensing
boiler.
Check whether it is possible to achieve a sufficient flow via the
heating system.
Check the cabling and function of the pump and boiler return
temperature sensor. Replace the component if necessary.
E 9 3 1 8 3 The flue gas temperature sensor contacts have
been interrupted.
Check the function of the flue gas temperature sensor. Replace if
necessary.
E A 2 2 7 2 + 3 An insufficient ionisation current was measured
following ignition of the burner.
Check the wall mounted gas condensing boiler for soiling.
Check gas supply pressure.
Check gas/air ratio.
Check the plug of the ignition device.
Check ignition and ionisation current.
Check ignition device for damage. Replace the component if
necessary.
E A 2 2 9 2 The ionisation current detected by the system
during the burning phase was insufficient.
Check the dynamic gas supply pressure.
Check plug and cabling of the ionisation pin.
Check ignition device for damage and wear. Replace the component
if necessary.
E A 2 3 4 3 The contacts of the gas valve have been
interrupted.
Check 24V cabling for poor contacts, breaks and pinching.
If installed: check function of wall mounted gas condensing boiler by
connecting the appliance thermostats (e.g. maximum, flue gas or
burner thermostat) one by one. Remove the connections after
performing the check and replace the relevant appliance
thermostats if necessary.
Check cabling and plug of the gas valve.
Check function of the wall mounted gas condensing boiler by
replacing the gas valve.
Check plug and wiring of the burner control unit.
Check the operating characteristics of the wall mounted gas
condensing boiler by replacing the burner control unit.
E A 2 6 1 3 The burner control unit is faulty. Check plug and wiring of the burner control unit.
Check the operating characteristics of the wall mounted gas
condensing boiler by replacing the burner control unit.
E A 2 6 9 3 The ignition device has been activated for too long. Check plug and wiring of the burner control unit.
Check the operating characteristics of the wall mounted gas
condensing boiler by replacing the burner control unit.
F 0 2 3 7 3 The burner control unit or the HCM is faulty. Check plug and wiring of the burner control unit.
Check the operating characteristics of the wall mounted gas
condensing boiler by replacing the burner control unit.
F 0 2 3 8
F 0 2 3 9 3 The burner control unit or the HCM is faulty. Check 24V cabling for poor contacts, breaks and pinching. If
installed: check function of wall mounted gas condensing boiler by
connecting the appliance thermostats (e.g. maximum, flue gas or
burner thermostat) one by one. Remove the connections after
performing the check and replace the relevant appliance
thermostats if necessary.
Check plug and wiring of the burner control unit.
Check the operating characteristics of the wall mounted gas
condensing boiler by replacing the burner control unit.
Code Code
type
Designation Remedy
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