TECHNICAL ASSISTANCE SERVICE
53
Error
code via
QAA
Diagnostic
info
Description of error
Type of fault
System action
Procedure
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
117
537
Water pressure too high
(inactive)
dpH2OmaxPuOn
parameter (maximum
permissible pressure
differential after pump
start-up) exceeded
Safety shutdown
Check the water
pressure; check the
system; check the
pressure switch
118
513
Water pressure too low
(inactive)
Water pressure is
below the value set
in the PH2OAbschalt
parameter (minimum
pressure threshold for
deactivating the boiler
pump)
Safety shutdown
Check the water
pressure; check the
system; check the
pressure switch; check
the pump
118
514
Water pressure too low
(inactive)
Water pressure is below
the value set in the
PH2Omin parameter
(minimum pressure)
Message
Check the water
pressure; check the
system; check the
pressure switch; check
the pump
118
536
Water pressure too low
(inactive)
Water pressure is
below the value set in
the dpH2OminPuOn
parameter (minimum
pressure differential after
pump start-up)
Safety shutdown
Check the water
pressure; check the
system; check the
pressure switch; check
the pump
119
139
Flue gas thermostat
tripped
Flue gas thermostat
tripped
Burner lockout
(permanent). Lockout
reset required
Check the water
pressure; check the
system; check the
temperature sensor
119
140
Flue gas thermostat
tripped
Flue gas thermostat
tripped
Safety shutdown
Check the water
pressure; check the
system; check the
temperature sensor
128
98
No flame during
functioning
Flame failure during
functioning
Safety shutdown
Check the gas supply
and gas valve status;
check the burner
128
99
No flame during
functioning
Flame failure during
functioning
Safety shutdown
Check the gas supply
and gas valve status;
check the burner
128
100
No flame during
functioning
Flame failure during
functioning
Burner lockout
(permanent). Lockout
reset required
Check the gas supply
and gas valve status;
check the burner
128
570
No flame during
functioning
Ionisation current is
below the threshold set
in the IonLimitGrenz
parameter; count for
number of missing flame
readings started
Safety shutdown
Check the gas supply
and gas valve status;
check the burner
128
571
No flame during
functioning
Ionisation current is
below the threshold set
in the IonLimitGrenz
parameter; maximum
number of missing flame
readings reached
Burner lockout
(permanent). Lockout
reset required
Check the gas supply
and gas valve status;
check the burner