
64
BOILER STATUS
MALFUNCTION
PROBABLE CAUSE
SOLUTION
E01*
Burner does not ignite.
Gas supply failure.
Check gas supply.
Check gas supply cock or gas network
safety valve intervention.
Gas valve is disconnected.
Reconnect it.
Gas valve is faulty.
Replace it.
The board is faulty.
Replace it.
Burner does not ignite:
there is no spark.
Ignition relay is faulty.
Replace the electrode.
Electronic board does not ignite. It is faulty. Replace electronic board.
Burner ignites for a few seconds and
goes off.
Electronic board does not detect flame:
inverted phase and neutral.
Check the correct phase-neutral
connection to the power supply.
Detection electrode cable is interrupted.
Reconnect or replace wire.
Detection electrode is faulty.
Replace the electrode.
Electronic board does not detect flame:
it is faulty.
Replace electronic board.
Ignition heat input setting is too low.
Increase it.
Minimum heat input is not set correctly.
Check burner setting.
E02*
Flow temperature exceeded the max.
allowed value.
Circulation pump is blocked or faulty.
Check the circulation pump.
The system is leaking.
Check system.
E03*
Flue thermostat triggering.
Poor flue draught.
Check the chimney and ambient air
suction openings.
Flue vent / air intake duct is obstructed.
Check for any duct obstruction, and
eliminate.
Flue gas thermostat is faulty.
Replace it.
E04**
CH system water pressure is low.
The system is leaking.
Check system.
Pressure transducer is disconnected.
Reconnect it.
Pressure transducer is faulty.
Replace it.
E05**
CH probe failure.
Flow probe is electrically disconnected.
Reconnect it.
Flow probe faulty.
Replace it.
E07**
Flue gas probe failure.
Flue gas probe is electrically disconnected. Reconnect it.
Flue gas probe is faulty.
Replace it.
E09
System pressure is too close to the max.
limit.
During manual filling, a system pressure
too close to the safety valve drain value has
been restored.
Progressively drain the system until the
error symbol disappears.
E12**
Water heater probe failure.
Probe is disconnected.
Reconnect it.
Probe is faulty.
Replace it.
E15**
Return probe failure.
Probe is disconnected.
Reconnect it.
Probe is faulty.
Replace it.
E31**
Remote Control connection failure (only
shown on Remote Control display).
The Remote Control is not connected to
boiler board.
Reconnect it.
Remote control faulty.
Replace it.
Boiler board is faulty.
Replace it.
E35**
Safety thermostat triggering to protect the
mixed "zone 2" (on versions V and Z, only).
Mixer valve is faulty.
Replace it.
Thermostat is disconnected.
Reconnect it.
Thermostat is faulty.
Replace it.
E36**
Flow probe failure on one of the installed
zones.
Probe is disconnected.
Reconnect it.
Probe is faulty.
Replace it.
E40*
Fan failure.
Fan disconnected.
Reconnect it.
Fan faulty.
Replace it.
6.
TROUBLESHOOTING
Содержание GIAVA KRB 12
Страница 1: ...IST 03 C 629 03 INSTALLATION USE AND MAINTENANCE GIAVA KRB 12 24 28 32 EN...
Страница 30: ...30 fig 8 21 20 Ref no Description 20 CH system filler cock 21 Hydraulic separator...
Страница 66: ...66...
Страница 67: ...67...