Baxi LUNA HT 1.850 Installers And Users Instructions page 9

Fault code Fault description
E10 outdoor temperature probe sensor failure
E20 NTC output sensor failure
E40 NTC return heating probe faulty
E50 domestic hot water ntc sensor failure
Safety or fumes thermostat or heating return
E110
temperature probe tripped
E111 Delivery temperature higher than 95°C
Loss of flame during operation (the ionization current
E128
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 No circulation or reverse flow
E160 fan speed threshold not reached
E164
no hydraulic 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.
In case of electrical power supply faults when the boiler is in operation, no gas leakage will occurr, as the gas valve will turn off
leaving the gas duct closed. The boiler will not signal any failure (lockout error will not appear), and, in case the heating request
is still pending after the electrical power supply resumes, it restart to light on the burner starting a new heating cycle.
INSTRUCTIONS PERTAINING TO THE USER
3.9 FAULT WARNINGS TABLE
WARNING: POWER SUPPLY FAULTS
9
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)
If this fault persists, call the authorised service centre
Call an authorised service centre.
Call an 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 (
otherwise 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 17).
press the key again (about 2 seconds)
call the authorised service centre
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.
) symbol,
910.024.1 - EN (AUS)