TECHNICAL ASSISTANCE SERVICE
51
Error
code via
QAA
Diagnostic
info
Description of error
Type of fault
System action
Procedure
92
293
Electronic device errors
Hardware error
Burner lockout
(permanent). Lockout
reset required
Contact Technical
Assistance Service
92
294
Electronic device errors
Hardware error
Burner lockout
(permanent). Lockout
reset required
Contact Technical
Assistance Service
92
484
Electronic device errors
Room thermostat input
faulty
Message
Contact Technical
Assistance Service
92
485
Electronic device errors Air pressure switch input
faulty
Message
Contact Technical
Assistance Service
92
486
Electronic device errors
Gas pressure switch
input faulty
Message
Contact Technical
Assistance Service
92
487
Electronic device errors
Safety relay output faulty
Message
Contact Technical
Assistance Service
92
488
Electronic device errors Safety valve output faulty
Message
Contact Technical
Assistance Service
92
489
Electronic device errors
DHW flow switch input
faulty
Message
Contact Technical
Assistance Service
92
490
Electronic device errors
CH flow switch input
faulty
Message
Contact Technical
Assistance Service
92
491
Electronic device errors
Dynamic ignition output
faulty
Message
Contact Technical
Assistance Service
95
538
Invalid date
Internal LMU clock
invalid
Message
Contact Technical
Assistance Service
100
520
Two master clocks found Two master clocks found
on LPB connection
Message
Contact Technical
Assistance Service
100
539
Two master clocks found Two master clocks found
(on Qaa)
Message
Contact Technical
Assistance Service
105
560
Maintenance message
The hours of functioning
exceed the number set
at the last service
Message
Service the boiler
105
561
Maintenance message
The burner ignitions
exceed the number set
at the last service
Message
Service the boiler
105
562
Maintenance message
The months of
functioning exceed the
number set at the last
service
Message
Service the boiler
105
563
Maintenance message
The flame ionisation
current has been
exceeded
Message
Service the boiler
110
17
Safety thermostat tripped
(SLT)
Circuit open
Burner lockout
(permanent). Lockout
reset required
Circuit open: check
connections
110
115
Safety thermostat tripped
(SLT)
Maximum temperature
exceeded
Safety shutdown
SLT thermostat tripped:
check system
110
129
Safety thermostat tripped
(SLT)
Thermostat tripped due
to residual heat
Burner lockout
(permanent). Lockout
reset required
SLT thermostat tripped
at wrong time: check
system
110
422
Safety thermostat tripped
(SLT)
Thermostat tripped due
to residual heat
Burner lockout
(permanent). Lockout
reset required
SLT thermostat tripped
at wrong time: check
system
110
470
Safety thermostat tripped
(SLT)
Circuit open
Safety shutdown
SLT thermostat tripped:
check system
111
141
Threshold thermostat
tripped
Threshold thermostat
tripped
Safety shutdown
Temperature too high:
check system
113
506
Flue gas thermostat
tripped
TaAbschal (flue gas
temperature threshold
for boiler shutdown)
parameter exceeded or
reading not plausible
Burner lockout
(permanent). Lockout
reset required
Check flue gas vent;
check temperature
reading; check/replace
temperature sensor
117
512
Water pressure too high
(inactive)
PH2Omax (maximum
water pressure in boiler)
parameter exceeded
Safety shutdown
Check the water
pressure; check the
system; check/replace
the temperature sensor
