8. Troubleshooting guide (error code)
Error code
The error codes display when errors occur
The last ten errors are saved in the appliance error memory
→ Press the “Timer” button for 5 seconds
→ Automatically the last errors history display 2 times by step on LCD panel.
You can exit the error memory display as follow;
→ Do not press any button return to the former times display
Code
E 01
Appliance does not start
Faults in the gas supply such as
Attempts to ignite during start failed
Gas meter or gas pressure detector defective
Air in gas
Gas flow pressure too low
Faults in the gas fitting, wrong gas setting, igniter (ignition
transformer, ignition cable, ignition plug) defective, photo r
sensor defective (cable, electrode), faulty earth in appliance,
electronics defective.
E 02
Flame detect before supplied gas
Electronics defective, Photo sensor defective
E 03
Flame goes off during the appliance
Gas supply pressure too low, flame detect device defective,
operating until less than 1 minute for
PCB defective
5 times repeat
E 04
Interruption in heating temperature sensor
Sensor connection defective, sensor faulty
E 14
Interruption in DHW outlet temperature sensor
Sensor connection defective, sensor faulty
E 34
Interruption in DHW inlet temperature sensor
Sensor connection defective, sensor faulty
E 05
Interruption safety high limit sensor wire
PCB defective, faulty connection on the electronics
E 06
Fan RPM signal doesn’t detect
Fan detective, RPM signal connection faulty, PCB defective,
plug not inserted correctly on fan, hall sensor defective
E 07
Fan RPM signal in the wrong range
Check the flue condition, PCB defective, electronic defective
E 08
No communication with the PCB
Communication faulty between the room controller and the
PCB. PCB faulty, Room controller faulty
E 95
Not enough water in the heating system
Filling the water into the heating system
E 96
High temperature limiter actuated
Flow probe not connected thermally correct of defective,
appliance does not shut down
E 97
Gas leakage detect
Change of air in boiler installing site, electronics defective
Meaning
Cause
8-1 Finding fault
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