Diagnostics – Error codes:
This paragraph contains a list of error codes that the boiler may generate on the display 7 (see “Control panel”)
together with the relative indications and the operations that the user can carry out to reset the boiler.
If the problem re-occurs after the following actions have been taken, call an authorised Service
Centre.
_E01
E01E01
E01_ Ionisation block
Code E01 lit continuously on the display.
Check that the gas valve on the boiler and gas meter are open and that there is gas in the mains supply (or in
the tank).
Switch off then switch on the appliance using switch 1 (see “Control panel”) on the control panel.
When the error code on the display disappears, the boiler will restart.
If the problem persists, Call the Service Centre.
_E02
E02E02
E02_ Safety Thermostat tripped
Code E02 lit continuously on the display. Call the Service Centre.
_E03
E03E03
E03_ Flue Gas Thermostat tripped
Code E03 lit continuously on the display. Call the Service Centre.
_h2o
h2oh2o
h2o_ Low Water Pressure Alarm
Code H2O lit continuously on the display.
Fill the system until the pressure gauge reches 1.0 bar.
The boiler will restart automatically.
If the problem persists, Call the Service Centre.
_E05
E05E05
E05_ Heating Sensor malfunction
Code E05 lit continuously on the display. Call the Service Centre.
_E16
E16E16
E16_ Electric Fan Malfunction
Code E16 lit continuously on the display. Call the Service Centre.
_E22
E22E22
E22_ Parameter programming request
Code E22 lit continuously on the display. Call the Service Centre.
_E35
E35E35
E35_ Flame Detection Malfunction
Code E35 lit continuously on the display. Call the Service Centre.
N.B. If the boiler is to be left unused for a long period of time, the user must do one of the following:
Make the boiler safe by disconnecting all the power supplies (electricity and gas), and draining the heating
system and the condensate trap.
Leave the boiler in standby, leaving the electricity and gas supplies connected and, consequently the anti-freeze
function.
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