Baxi LUNA3 SYSTEM HT 1.180 MP Installers And Users Instructions page 44

Fault
code Fault description
e10 outdoor temperature probe sensor failure
e20
ntc output sensor failure
e40
NTC central heating return sensor failure
e50
domestic hot water ntc sensor failure
e110
safety or flue gas thermostat tripped
e128 loss of flame during operation (the ionization current
has fallen below the limit)
e129 minimum fan speed limit is hurt
e132 floor thermostat tripped
e133 no gas
e151 boiler circuit board error
e153
the reset key has been pressed inappropriately
e154
internal error on boiler circuit module
e160
fan speed threshold not reached
e164 no hydraulic differential pressure switch enabling
signal
All the faults are displayed in order of importance; if several faults occur simultaneously, the first to be displayed is the one
with highest priority. After the cause of the first fault has been removed, the second one will be displayed, and so on.
If any given fault occurs frequently, contact the authorised Service Centre.
InstructIons pertaInInG to the user
3.9 fault warnIngs table
action required
call the authorised service centre.
call the authorised service centre.
call the authorised service centre.
call the authorised service centre.
press the reset key (for about 2 seconds: if this device is triggered
repeatedly, call the authorised service centre)
call the authorised service centre.
call the authorised service centre.
call the authorised service centre.
press the reset key (for about 2 seconds); if the fault persists, call the
authorised service centre)
Press the reset button if the display presents the
switch off the boiler at the mains and switch it on again after 10 seconds.
If the fault persists, call an authorised service centre. Check the position
of the ignition electrodes (chapter 19).
press the key again (about 2 seconds)
Press and hold reset button (2 seconds approx.) then press again when
warning E153 appears
call the authorised service centre.
check that the system is at the rated pressure. (refer to the section
on filling the system). if the fault persists, call the authorised service
centre.
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, symbol, otherwise
925.916.2 - GB