Baxi ECOGEN 24/1.0, Installation & Servicing Instructions Manual

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thermo
127: Legionella
temperature Legionella temperature not achieved within 48 hours C
157: Boiler
Flow
Thermostat Boiler flow overheat thermostat / safety chain open UR UR C
158:
Condensate Condensate switch of safety chain opened UR UR D
164: Flow
press switch
HC Low flow or air in system / faulty connection or water flow sensor AR AR I
253:
Ambiguous err
cause The controller is unable to identify the error cause UR/SR UR/SR F
257: Pack
sensor Fault pack temp sensor C
258: Pack
overtemp Internal ambient temperature to high AR AR C
259: CJC
sensor Fault cold junction compensation sensor AR C
261: Loss of
flame Eng bu No flame after five ignition tries in Engine UR E
262: Loss of fl'
Supp bu No flame after five ignition tries in Supplementary UR E
263: Engi bu
BCU failure Multiple communication request of Engine Burner Control Unit unsuccessful.
1) Failure caused by BCU
2) BCU Communication Timeout on Main Control Board
ARP
AR
F
264: Supp bu
BCU failure Multiple communication request of Supp. Burner Control Unit unsuccessful.
1) Failure caused by BCU
2) BCU Communication Timeout on Main Control Board
ARP
AR
F
265: BCU
failure Not supported in Main Control Board F
266: Fan fault Fan fault: The fan speed differs from its set point for more than 30 seconds. SR SR G
267: Fan
calibration Fan calibration error: After power­up the test threshold of 4,700 rpm was not attained. ARP ARP G
268: Spool
valve fault Feedback signal of spool valve did not reach required value within detection time ­
typically 60 sec. SR SR H
269: Spool
valve calib During start up the feedback signal of the spool valve did not register a correct
calibration SR SR H
page 78
Error code:
Display Description Lockout/reset
action
Fault
Section
Eng Sup
270: exc temp.
diff h'exch Excessive max temperature difference across the heat exchanger during 5 minutes or
excessive limit temperature difference. If temperature difference fell below (threshold ­
switching differential boiler): automatic reset
­ when the maximum setting was exceeded immediately
­ when the limit value was exceeded after 10 minutes
AR
AR
AR
AR 10'
I
274: Dry fire
prot Flow sensor did not detect at least 4 L/min within 4 mins UR UR I
278: Max Temp
Rise Maximum flow temperature rise exceeded, automatic reset after 10 minutes AR 10' I
280 : Inner iron
overtemp Engine dome overtemp has operated AR P
281: Dyn
absorber overtr Dynamic absorber over­travel switches have been activated SR P
282:
G83/ENS/G1M G83/ENS module has detected an unhealthy mains condition AR P
283: Altern'
overload Alternator overload protection thermostat has operated SR P
284: WCS over
temp Water cooled seal thermostat has operated SR SR J
285: Alternat SC Power monitor IC has detected a short­circuit condition AR P
286: Eng head
over temp Engine head temperature thermocouple measurement has exceeded 565 degrees C SR K
287: Eng head
under temp Engine head temperature thermocouple measurement below 103 degrees C when the
CX relay is energised AR N
288­297:
Various fault
messages Milligrid and water cooled thermostat continuity problems SR K / O
298: False
flame engine
burner Ionisation probe of engine burner detected false flame AR
299: False
flame
supplementary
burner Ionisation probe of supplementary burner detected false flame AR
300: Eng head
undert SW Engine head control temperature less than 150 degrees C when connected to the grid UR N