ROBUA G Series, Installation, Use And Maintenance Manual

Page: 36 / 48

Normal operation
36
6
Error code Fault description Causes What to do
10 E Flue gas temperature probe fault Flue gas temperature probe fault Replace the probe
11 E Lock for minimum flue temperature Low flue gas temperature
Check that the air intake or flue exhaust
ducts are not obstructed or excessively
long
Check that the condensate drain pipe or
condensate drain siphon is not obstructed
or has an inadequate cross-section
Check that the flue gas probe is correctly
positioned in the flue gas collector
(1) WARNING: after four 01 E and/or 02 E resets within 1 hour, the error can no longer be reset manually; in order to reset the error, you must wait 1 hour or disconnect
and reconnect the appliance from the power supply.
Table 6.6 p. 36 shows the faults that may occur during
the operation of the gas unit heater but which are not
shown on the chronothermostat.
Table 6.6
Operating faults NOT shown on the chronothermostat
Fault description Causes What to do
The burner goes out and does not
restart even if the room tempera-
ture requires it
The position of the chronothermostat is affected by the influence
of heat sources or is affected by the flow of warm air Check the position of the chronothermo-
stat
The programming of the chronothermostat has turned off the
appliance
Check the programming setting
The chronothermostat is on and
the gas unit heater is not working
Power supply to the unit has failed Check power supply
Failure of the Interface card with the chronothermostat
Check the electrical connection of the
board and replace it if necessary
The electrical bridge on the electronic board is open Check that the electrical bridge is closed
6.3.12 Meaning chronothermostat display icons
Table 6.7
Meaning chronothermostat display icons
Icon Meaning
Gas unit heater is in standby mode
Winter operation enabled
Fault or request for maintenance (see Table 6.5
p. 35)
Communication between chronothermostat and gas unit
heater active
Comfort temperature in use
Reduced temperature (Econm) in use
Automatic operation in use
Manual operation in use
Forced automatic operation in use
Timed off operation in use
Timed manual operation in use
Icon Meaning
Current flame/power level
6.4 GAS UNIT HEATER OPERATING
MODES
The gas unit heater has the following usage options
(refer to the diagrams in Figure 6.11 p. 40 and Figure
6.10 p. 39).
The gas unit heater must be connected to the elec-
trical and gas networks, with the gas tap open and
the bipolar switch in the on position.
6.4.1 Operation with chronothermostat
6.4.1.1 Winter operation (heating)
The heating operation can be (Figure 6.11 p. 40):
▶
Modulating standard operation
„
automatic (unit operation automatically managed
by the chronothermostat according to the time
schedule)
„
manual (operation of the unit managed manually
by the user)
▶
Fixed standard operation
„
automatic (unit operation automatically managed
by the chronothermostat according to the time
schedule)
„
manual (operation of the unit managed manually
by the user)
By default, the gas unit heater leaves the factory
configured for the standard operating mode.