Baxi LUNA HT 1.280, Installation, Operation And Maintenance Manual

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Fault
code
Fault description Explanations/causes
110 Safety temperature limiter lockout No heat removal, STB/interruption, possibly short in gas
valve
2)
, internal fuse defective; let device cool down and
reset; if this fault occurs several times, inform heating
specialist
3)
111 Temperature monitor switching off
No heat removal; pump defect,radiator valves closed
1)
119 Fault pressure switch
Check or refill water pressure 1)
121 Flow temperature 1 (Heating circuit 1) monito-
ring
122 Flow temperature 2 (Heating circuit 2) monito-
ring
126 DHW charging monitoring
127 Legionnaire>'s disease germs temperature not re-
ached
128 Flame failure during operation
130
132
Gas pressure monitor- or air pressure switch fault Lack of gas, contact GW opened, external temperature
monitor
133 No flame during the safety time Reset, if the fault re-occurs several times, contact heating
specialist, lack of gas, polarity of mains connection, safe-
ty period, check ignition electrode and ionisation current
1) 3)
146 Configuration fault Common message
151 Internal fault Check parameter (see Adjustment Table Heating Expert
and/or Call-up Values), reset LMS, change LMS, heating
expert
1) 3)
152 Parameterization fault
160 Fan fault
Fan possible defective, speed threshold set wrongly
3)
162 Air pressure monitor dosn`t closed.
171 Alarm contact H1 or H4 activated.
172 Alarm contact H2 (EM1, EM2 or EM3) or H5 acti-
vated
178 Temperature monitor heating circuit 1
179 Temperature monitor heating circuit 2
183 The device is in Parameter setting mode
217 Sensor fault
218 Pressure supervision
241 Flow sensor solar sensor fault
242 Return sensor solar sensor fault
243 Swimming pool sensor fault
260 Flow temperature 3 Sensor fault
270 Monitoring function
317 Ned frequency outside of valid range
320 DHW Charging temp sensor fault
321
324 BX same sensors
Maintenance
358 436 08.10 137