34
–
FAN ERROR “ALL 15” (fig. 23/m)
The fan speed does not fall within the
rated speed range.
If the error conditions persists for two
minutes, the boiler activates a forced
stop for thirty minutes.
A new start attempt is repeated after
the expiry of this interval of time.
Fig. 23/m
–
EXTERNAL PROBE ERROR “
FLASHING” (fig. 23/p)
When fitted if the external probe (SE) is
short-circuited, the display the symbol
flashes
.
During such anomaly the boiler conti-
nues normal functioning.
Fig. 23/p
–
SAFETY THERMOSTAT INTERVEN-
TION FIRST MIXED ZONE “ALL 20”
(fig. 23/q)
When the mixed zone board is connec-
ted to the boiler, a safety thermostat
intervention switches on the mixed
zone pump, the mixed zone valve clo-
ses and the display indicates error ALL
20.
During this error the boiler continues
to function normally.
Fig. 23/q
–
DELIVERY PROBE BREAKDOWN ER-
ROR FIRST MIXED ZONE “ALL 21” (fig.
23/r)
When a mixed zone board is connected
to the boiler, if the delivery probe be-
comes open or short circuit the display
will indicate ALL21.
During this error, the boiler continues
to function normally.
Fig. 23/r
–
SAFETY THERMOSTAT INTERVEN-
TION SECOND MIXED ZONE “ALL 22”
(fig. 23/s)
When a mixed zone board is connec-
ted to the boiler, an intervention of the
safety thermostat switches on the mi-
xed zone pump, the mixed zone valve
closes and the display indicates ALL
22. During this anomaly the boiler con-
tinues to function normally.
Fig. 23/s
–
DELIVERY PROBE BREAKDOWN ER-
ROR SECOND MIXED ZONE “ALL 23”
(fig. 23/t)
When a mixed zone board is connec-
ted to the boiler, if the delivery probe
is open or short circuited, the display
will indicate ALL 23 appears. During
this anomaly the boiler continues to
function normally.
Fig. 23/t
–
SOLAR COLLECTOR SENSOR ERROR
(S1) “ALL 24” (fig. 23/18)
When the solar probe is open or short
circuited, on the display the anomaly
ALL 24 appears. During this anomaly
the boiler continues to function nor-
mally but loses the solar function that
is no longer available.
Fig. 23/18
–
SOLAR PROBE ERROR STORAGE TANK
(S2) “ALL 25” (fig. 23/19)
When the solar probe is open or short
circuited, on the display the anomaly
ALL 25 appears. During this anomaly
the boiler continues to function nor-
mally but loses the solar function that
is no longer available.
Fig. 23/19
–
AUXILIARY SENSOR ERROR (S3) “ALL
26” (fig. 23/20)
When the solar probe is open or short
circuited, on the display the anomaly
ALL 26 appears. During this anomaly
the boiler continues to function nor-
mally but loses the solar function that
is no longer available.
Fig. 23/20
–
ERROR SOLAR APPLICATION COMPA-
TIBILITY “ALL 27” (fig. 23/21)
When the hydraulic configuration PAR
2 is not consistent with the selection
solar application, on the display the
anomaly ALL 27 appears. During this
anomaly the boiler continues to fun-
ction normally but for the board is ac-
tive in the solar anomaly, the function
is only available antifreeze collector.
Fig. 23/21
–
COMPATIBILITY INPUT (S3) ERROR
ONLY FOR SYSTEM 7 “ALL 28” (fig.
23/22)
When a probe is connected instead of
a clean contact on entry S3 the board
on display shows the anomaly ALL 28.
During this anomaly the boiler conti-
nues to function normally but for the
board is active in the solar anomaly,
the function is only available antifreeze
collector.
Fig. 23/22
–
ERROR NUMBERS RELATED BOARD
“ALL 29” (fig. 23/23)
When there is no communication with
a fitted expansion board, the display
will indicate. ALL 29. The boiler will
continue to operate excluding the fun-
ction MIXED ZONE/INSOL.
Fig. 23/23
Summary of Contents for MURELLE GREEN PLANET 50 HE I
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