Troubleshooting; Routine Maintenance Instructions - Baxi Nuvola 3+ BS40 Operating And Installation Instructions

Faults are shown on the display with an error code (e.g.: E01):
The faults that can be reset by the user are indicated on the display with the symbol
The faults that cannot be reset by the user are indicated on the display with the symbol
To RESET the boiler, press and hold down
Figure 4
CODE
TYPE OF FAULT
DISPLAYED
E01 Ignition failure
E02 Safety thermostat tripped
Flue thermostat/ flue pressure switch
E03
tripped
E04 Safety error due to frequent flame loss
E05 Delivery sensor fault
E06 DHW sensor fault
E10 Hydraulic pressure switch block
Safety thermostat for low temperature
E11
system cuts in (if connected)
E25
No water safety trip
Communication error between electro-
E31
nic board and remote control unit
E35
Parasite flame (flame error)
E98 Internal board error
E99 Internal board error

10. ROUTINE MAINTENANCE INSTRUCTIONS

To keep the boiler efficient and safe, have it checked by the authorised Service Centre at the end of every operating period.
Careful servicing ensures economical operation of the system.
Do not clean the outer casing of the appliance with abrasive, aggressive and/or easily flammable cleaners (i.e.: gasoline, alcohol,
and so on). Always isolate the electrical supply to the appliance before cleaning it (see section 6).
INSTRUCTIONS FOR USERS

9. TROUBLESHOOTING

for at least 2 seconds.
Figure 4.1
CORRECTIVE ACTION
Press . If this fault persists, call the Authorised Service
Centre.
Press . If this fault persists, call the Authorised Service
Centre.
Call an authorised Service centre.
Call an authorised Service centre.
Call an authorised Service centre.
Call an authorised Service centre.
Check that the pressure in the system is correct; See
section 5. If this fault persists, call the Authorised Service
Centre.
Call an authorised Service centre.
Call an authorised Service centre.
Press . If this fault persists, call the Authorised Service
Centre.
Press . If this fault persists, call the Authorised Service
Centre.
Call an authorised Service centre.
Call an authorised Service centre.
36
(figure 4).
(figure 4.1).
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