Baxi EcoBlue Advance Combi 28 Installation And Service Manual page 66

11 Troubleshooting
Turn on mains power
The display illuminates
YES
110, 125, 133, or 384
flashing
NO
20, 28, 40 or 321
flashing
NO
117 or 118 flashing
NO
Set Hot Water temperature to
Maximum & fully open hot tap.
symbol flashing, pump runs
YES
Fan runs at correct speed
NO
Spark at ignition electrodes
up to 5 seconds & for 4
attempts
YES
NO
Burner lights
YES
Flame Displayed
109 flashing
NO
110 or 111 flashing
NO
3 Way Valve open to
Domestic Hot Water circuit
YES
Burner modulates to
maintain set temperature
NO
130 flashing
NO
Burner goes out
66 EcoBlue Advance Combi
NO
Go to section 'A'
Press the reset button for 1
YES
to 3 seconds
YES
Go to section 'D'
YES
Go to section 'I'
NO
DHW flow rate greater
NO
than 2litres/min
160 flashing
NO
Go to section 'C'
NO
R
133 and flashing
Go to section 'E'
YES
Burner goes out after 5
seconds
NO
Check polarity
YES
125 flashing after 1 min
YES
Go to section 'H'
NO
Go to section 'K'
NO Check CH NTC sensor.
Go to section 'D'
YES
Go to section 'M'
Fan stops after 15
YES
seconds
Domestic Hot Water - Follow operational sequence
If
regularly, check all PCB connections. If this
If 110 is still flashing
go to section 'H'
Go to section 'L'
NO
YES
Burner lights
YES
Go to section 'F'. Press the
YES
reset button for 1 to 3
seconds
YES 133 flashing
Go to section 'G'
Go to section 'J'
YES
Boiler operation correct
110 or 384 is flashing or re-occurs
has no effect replace the PCB.
Go to section 'L'
Go to section 'B'
Comp No. 7212138 - 02 (06/14)