Operating Instructions and Installation Instructions

Lockouts
28
Error
code
Description of error
128 Loss of flame during operation
129 Fan error or LP error
130 Flue gas temperature limit exceeded
131 Burner fault
132 GP or LP error
133 No flame during safety time
146 Configuration error collective message
151 Internal error
152 Parameterization error
153 Unit manually locked
160 Fan error
162 LP error, does not close
164 Error heating circuit flow switch
166 LP error, does not open
169 Sitherm Pro system error
170 Error water pressure sensor primary side
171 Alarm contact H1 or H4 active
172 Alarm contact H2 (EM1, EM2 or EM3) or H5 active
173 Alarm contact H6 active
174 Alarm contact H3 or H7 active
176 Upper pressure limit H2 (EM1, EM2 or EM3) (exceeded)
177 Critical lower pressure limit H2 (EM1, EM2 or EM3) (crossed)
178 Limit thermostat heating circuit 1
179 Limit thermostat heating circuit 2
183 Unit in parameterization mode
193 Pump supervision error after flame on
195 Maximum refill time per charging cycle exceeded
196 Maximum refill time per week exceeded
215 Fault fan air diverting valve
216 Fault boiler
217 Fault sensor
218 Pressure supervision
241 Flow sensor solar sensor error
242 Return sensor solar sensor error
243 Swimming pool temperature sensor error
270 Limit function
317 Mains frequency outside permissible range
320 DHW charging temperature sensor error
321 Instantaneous water heater outlet temperature sensor error
322 Upper pressure limit H3 (exceeded)
323 Critical lower pressure limit H3 (crossed)
324 BX same sensors
325 BX / extension module same sensors
326 BX / mixing group same sensors
327 Extension module same function
328 Mixing group same finction
329 Extension module / mixing group same function
330 Sensor BX1 no function