Baxi HT 1.850 Installation, Operation And Maintenance Manual page 10

3.9 TABLE OF FAULTS AND ERROR MESSAGES
Error code Description of fault
E10
Outdoor temperature sensor fault
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 ame during operation (the ionization
E128
current has fallen below the limit)
E129 Minimum fan speed limit is hurt
E132
oor thermostat tripped
E133
no gas
E151 boiler circuit board error
E153 the reset key has been pressed inappropriately press the key again (about 2 seconds)
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 rst to be displa-
yed is the one with highest priority. After the cause of the rst 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.
ISTRUCTIONS PERTAINING TO THE USER
hydroheat.com.au
Corrective action
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)
If
otherwise switch off the electricity supply to the boiler
for at least 10 seconds; if the fault persists, call the
authorised service centre.
Check the positioning of the ignition and ame sensing
electrode (see section 16).
call the authorised service centre
call the authorised service centre.
check that the system is at the rated pressure. (refer to
the section on lling the system). if the fault persists, call
the authorised service centre.
WARNING: POWER SUPPLY FAULTS
10
symbol is displayed, press the reset button
910.026.1 - EN (AUS)