Riello ALUDOMUS SOLAR KV/200 20 ISC SOLAR Installation And Maintenance Manual page 74

THECNICAL ASSISTANCE SERVICE
Error
Diagnostic
code via
info
QAA
154 426
154 427
154 433
154 434
154 435
154 474
154 475
154 476
154 477
154 478
154 479
154 498
160 83
160 281
Description of
Type of fault
error
Boiler temperature has
risen more quickly than
Generic error
permitted by parameter
TempGradMax
The reset criterion for
error 426 has not been
reached (criterion: boiler
Generic error
temperature < boi-
ler setpoint and dT <
dTkTrSTB)
Generic error dT is > dTkTrSTB + 16K
The reset criterion for
error 433 has not been
Generic error
reached (criterion: dT <
½ dTkTrSTB)
Error 433 has occurred
more times than per-
Generic error
mitted by the burner
parameter GrenzeDeltaT
The DHW setpoint for HMI
Generic error
is < TbwSmin
The DHW setpoint for HMI
Generic error
is > TbwSmax
HMI flow temperature is
Generic error
< TkSmin
HMI flow temperature is
Generic error
> TkSnorm
HMI room temperature
Generic error
setpoint is < TrSim
HMI room temperature
Generic error
setpoint is > TrSim
Water schematic with CH
Generic error circuit 2 and room unit
unavailable
The acceptable speed
Fan speed range for starting the
threshold not ignition sequence was
reached not reached during start-
Fan speed is below re-
Fan speed quired threshold, phase
threshold not Ph_TLO: (N_TL-N_TH_Del-
reached ta), phase Ph_TNN: NoG_
System action
Safety shutdown
Safety shutdown
Safety shutdown
Safety shutdown
Burner lockout
(permanent).
Lockout reset re-
quired
Message
Message
Message
Message
Message
Message
Message
Burner lockout
(permanent).
Lockout reset re-
quired
up
Burner lockout
(permanent).
Lockout reset re-
quired
Null.
74
Procedure
OEM parameter not
editable via QAA.
Generic error. Check
the system. Boiler
temperature rises too
quickly
OEM parameter not
editable via QAA.
Generic error. Check
the system. Boiler
temperature rises too
quickly
OEM parameter not
editable via QAA. Ge-
neric error. Check the
system. The tempe-
rature differential in
the boiler is excessive
OEM parameter not
editable via QAA. Ge-
neric error. Check the
system. The tempe-
rature differential in
the boiler is excessive
OEM parameter not
editable via QAA. Ge-
neric error. Check the
system. The tempe-
rature differential in
the boiler is excessive
OEM parameter 508,
editable via pas-
sword. Check the
DHW system; tempe-
rature too low
OEM parameter 508,
editable via pas-
sword. Check the
DHW system; tempe-
rature too low
Installer parameter
503. Check system,
boiler setpoint
Installer parameter
505. Check system,
boiler setpoint
Installer parameter
501. Check system,
zone setpoint
Installer parameter
501. Check system,
zone setpoint
Check HMI program-
ming
Contact Technical
Assistance Service
OEM parameter not
editable via QAA. Fan
differentials excee-
ded. Contact Techni-
cal Assistance Service