CODES
WARNING codes
A0
-
A1
- Warning: approaching the lower limit of the allowed pressure (0.8 bar)
SHOULD BE DONE - Fill the system with water to the necessary pressure
A2
- Warning: approaching the upper limit of the allowed pressure (2.2 bara)
SHOULD BE DONE - Bring the system to the required pressure
A3
- Warning: approaching the lower limit of the allowed temperature (5 degrees) of the HEATING SYSTEM
SHOULD BE DONE - Switch on room thermostat and heaters or activate freezing protection regime
A4
- Warning: approaching the upper limit of the allowed temperature (80 degrees) of the HEATING SYSTEM
SHOULD BE DONE - Lower the power of the boiler, check whether the valves are open
ERROR codes
E0
- Error: the set parameters are not within limits (this is practically impossible
unless the eeprom is empty and the device is switched on for the first time) - all switched off
E1
- Error: reached lower limit of the allowed pressure (0.3 bar)
– all switched off
REMEDY
– Fill the system with water to the necessary pressure, check the sealing of all connections
E2
- Error: reached upper limit of the allowed pressure (2.6 bar) - all switched off
REMEDY - Bring the system to the required pressure by discharging air and water when needed
E3
- Error: reached lower limit of the allowed temperature (3
˚C) - all switched off
E4
- Error: reached upper limit of the allowed temperature (85
˚C) – the pump is switched on continuously
REMEDY - Switch off the main fuses for powering the boiler with electricity, call the service center
E5
- Error: reached lower limit of the allowed temperature of the BOILER (3
˚C) - INFORMATIVE
E6
- Error: sensor of temperature of the boiler in break or short circuit - all switched off
REMEDY - Switch off the main fuses for powering the boiler with electricity, call the service center
E7
- Error: sensor of temperature of the boiler in break or short circuit
– no sanitary water preparation
REMEDY - call the service center
E8
- Error: sensor of pressure in break or short circuit
– all switched off
REMEDY - Switch off the main fuses for powering the boiler with electricity, call the service center
Graphical overview of operation of the device
based on pressure and temperature