Baxi Ecogen 24/1.0 Installation & Servicing Instructions Manual page 77

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