End user
22
MAXXfl o EVO
Error
Code
Error Code Description
Diag.
Code
Notes
317
Mains frequency outside per-
mitted range
Any
Check electrical supply to appliance.
322
Water press 3 too high
Any
Water pressure inside the appliance is too high for safe opera-
tion. Operation will automatically resume once water pressure
is at or below maximum levels. Check that the appliance fl ow is
not restricted or blocked, or the water isolator valves are shut
off .
323
Water press 3 too low
Any
Water pressure inside appliance is too low for safe operation.
Operation will automatically resume once water pressure is at or
above 0.1 bar.
324
Input BX, same sensors
Any
BX sensor duplicated - check parameters
325
Input BX/extension module,
same sensors
Any
BX extension module sensor duplicated - check parameters
327
Extension module, same
function
Any
AGU2.5 extension module function duplicated - check param-
eter setup for the AGU2.5 extension module (“Confi guration”
menu)
335
Sensor input BX21 without
function
Any
BX21 connected but not defi ned - defi ne parameters for this
sensor connected to the AGU2.5 extension module
336
Sensor input BX22 without
function
Any
BX22 connected but not defi ned - defi ne parameters for this
sensor connected to the AGU2.5 extension module
353
Cascade fl ow sensor B10
missing
Any
Check connections and confi guration of common fl ow tempera-
ture sensor (B10), which is located at the feed into the tank on
the front, left, mid section of the appliance
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 of gas sup-
ply to check gas valve is closing completely. If current is still
present, remove ionisation probe and use a screwdriver to clear
the opening through the heat engine door before replacing the
probe.
385
Mains under voltage
Any
Mains voltage below 185v - check electrical supply to the appli-
ance.
386
Fan speed tolerance
Any
Fan outside allowed speed tolerance level. Check all wiring.
Check for possible air or fl ue restriction. Replace fan if all air-
ways are clear and wiring is good.
432
Function earth not connected
Any
No Ignition earth, X1 / X17 not connected or earth fault.
NA
Operating mode button locked
- Cannot operate in DHW
mode (No fault displayed)
Any
Remote system enable operating. Check to see if link wire is
still in place or controls wired to these terminals are closing this
circuit. When the appliance is operating via the volt free enable
signal, it is not possible to operate the appliance manually via
the GUI if the signal is not enabled (circuit closed).
2.10 ERROR CODES (CONTINUED)
Содержание CWH 30/201
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