8. CODES
8.1
WARNING codes
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 bar)
SHOULD BE DONE - Bring the system to the required pressure
A3
- Warning: approaching the lower limit of the allowed temperature where there is risk of freezing (3
˚C degrees)
of the HEATING SYSTEM
SHOULD BE DONE - Raise set power and temperature setpoint until current temperature grow up.
If there are no results, switch off boiler and dry all water from the system.
A4
- Warning: approaching the upper limit of the allowed temperature (90
˚C) of the HEATING SYSTEM
SHOULD BE DONE - Lower the power of the boiler, check whether the valves are open
8.2
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
– Does not exist
E4
- Error: reached upper limit of the allowed temperature (9
5˚C) – the pump is switched on continuously
REMEDY - Switch off the main fuses for powering the boiler with electricity, call the service center
E5
- Does not exist
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
- Does not exist
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
E9
- Error: Max decay time exceeded
– Screed drying program is canceled - the device switches to ˝No frost˝ mode
8.3 Graphical overview of operation of the device
based on pressure and temperature
Codes
