ANDREWS COMBIfl o
73
GB
Code Fault Description
Sub
Code
Notes
335
Sensor input BX21 without func-
tion
Any
BX21 connected but not defi ned - check parameters
336
Sensor input BX22 without func-
tion
Any
BX22 connected but not defi ned - check parameters
353
Cascade fl ow sensor B10 miss-
ing
Any
Check connections and confi guration of sensor (B10)
384
Extraneous light
Any
Ionisation current detected before ignition. Check ionisation current
(“Diagnostics producer” parameter 8329). If there is a current present
whilst the burner is in standby, turn off gas supply to check gas valve
is closing completely. If current is still present, remove ionisation probe
and use a screwdriver to clear the opening before replacing the probe.
385
Mains under voltage
Any
Mains voltage below 185v - check electrical installation
386
Fan speed tolerance
Any
Fan outside allowed speed tolerance level. Check for possible air or
fl ue restriction. Replace fan if all ducting is clear.
432
Function earth not connected
Any
No Ignition earth, X1 / X17 not connected or earth fault. Check site wir-
ing to appliance includes a correctly wired earth
NA
Operating mode button locked -
Cannot operate in DHW or Heat-
ing mode (No fault displayed)
Any
Remote system enable operating. Check to see if link is still in place
or controls wired to these terminals are closing this circuit. When the
heater is operating via the volt free enable signal, it is not possible to
operate the heater manually via the GUI if the signal is not enabled
(circuit closed).
6.6 FAULT CODES LIST (CONTINUED)
Содержание COMBIflo 100/300
Страница 9: ...ANDREWS COMBIflo 7 GB 3 1 GENERAL DIMENSIONS CONNECTIONS 3 0 TECHNICAL DATA ...
Страница 12: ...ANDREWS COMBIflo 10 GB 3 4 APPLICATION EXAMPLES Single Heating Circuit Simple ...
Страница 13: ...ANDREWS COMBIflo 11 GB Single Heating Circuit Immersion DHW Circulation pump ...
Страница 16: ...ANDREWS COMBIflo 14 GB Heating Circuit External 0 10V control ...
Страница 17: ...ANDREWS COMBIflo 15 GB BMS INTERNET CONNECTIONS ...
Страница 18: ...ANDREWS COMBIflo 16 GB 3 5 WIRING DIAGRAMS PCB 1 ...
Страница 19: ...ANDREWS COMBIflo 17 GB PCB 2 3 ...
Страница 69: ...ANDREWS COMBIflo 67 GB 6 4 COMPONENT ILLUSTRATIONS CONTINUED 1 2 3 4 5 29 8 9 11 6 13 12 7 39 40 41 42 35 10 30 ...
Страница 70: ...ANDREWS COMBIflo 68 GB 32 24 24 24 26 25 23 27 6 4 COMPONENTS ILLUSTRATIONS CONTINUED 32 27 15 33 14 10 28 ...
Страница 76: ...M7889 Rev N Mar 2022 March 2022 ...