35
–
SAFETY/LIMIT THERMOSTAT ERROR
ALARM
07
(fig. 23/f)
If either the 95 degree stat or the heat
exchanger safety stat opens, the bur-
ner will turn off and ALL 07 will be
displayed. If the thermostat connec-
tion is restored within the minute, the
boiler will start up working normally
again, otherwise it will stop and the
display will show the alarm “ALL 07”.
Press the key
of the controls (2)
to start up the boiler again.
–
FLAME DETECTION ERROR
ALARM
08
(fig. 23/g)
If the flame control section recogni-
ses the presence of a flames in pha-
ses when they should not be present,
it means there is a breakdown in the
flame detection circuit; the boiler will
stop and the display will show error
“ALL 08”.
–
WATER CIRCULATION ERROR
ALARM
09
(fig. 23/h)
1, Water circulation has not been de-
tected in the primary(boiler) circuit.
If this error is detected the boiler will
make two further attempts. If circu-
lation is not detected it will stop and
display ALL09.
Note, circulation is detected by a small
rise in system pressure at the boiler
transducer when the pump is energi-
sed. In large systems this may not be
detected, and can be disabled by alte-
ration of PAR 4.
2, The flow temperature sensor has
detected a temperature rise in excess
of 5 degrees per second.
–
AUXILIARY SENSOR ANOMALY
ALARM
10
(fig. 23/i)
SB sensor (if fitted), shorted or open
circuit. Confirm correct setting of
PAR2.
On BOX version shorted or open circuit
of SA sensor.
–
ACTIVATION OF THE EXHAUST
TEMPERATURE
SENSOR
“ALL 13” (fig. 23/l)
The activation of this probe causes the
boiler to stop and error message “ALL
13” to display.
Press the key
of the controls (2)
to start up the boiler again.
–
EXHAUST FUMES TEMPERATURE
SENSOR ERROR
“ALL 14” (fig. 23/m)
If the exhaust fumes probes is open or
short-circuited, the boiler stops and
error message “ALL 14” displays.
Fig. 23/g
Fig. 23/h
Fig. 23/f
2
Fig. 23/i
2
Fig. 23/l
Fig. 23/m
