Prolonged Standstill Of The System. Frost Protection; Safety Device Indicators - Activation; Servicing Instructions - Baxi ECO 3 Instructions Manual

9. pROlOnGEd StandStIll Of tHE SyStEM. fROSt pROtECtIOn

We recommend you avoid draining the whole system as water replacements engender purposeless and harmful limestone
deposits inside the boiler and on the heating elements. In case the boiler is not operated during wintertime and is therefore
exposed to danger of frost we suggest you add some specific-purpose anti-freeze to the water contained in the system
(e.g.: propylene glycole coupled with corrosion and scaling inhibitors).
The electronic management of boilers includes a "frost protection" function in the central heating system which operates
the burner to reach a heating flow temperature of 30° C when the system heating flow temperature drops below 5°C.
The frost protection function is enabled if:
* electrical supply to the boiler is on;
* the gas service cock is open;
* the system pressure is as required;
* the boiler is not blocked.

10. SafEty dEvICE IndICatORS - aCtIvatIOn

If a fault occurs, the display reads out an error message identifying it (es. E 01):
Figure 4
error code Description of FauLts
e01 Gas supply fault
e02 Safety thermostat sensor tripped
Flue thermostat sensor tripped / Flue
e03
pressure switch tripped
e05
Central heating NTC sensor fault
e06
Domestic Hot Water NTC sensor fault
e10 Water pressure LOW
Boiler max temperature
e25
exceeded(probable pump jammed)
e35 Fault flame (parasitic flame)
note: if a fault occurs, the display reads out an error code flashing together with background light.
To maintain efficient and safe operation of your boiler have it checked by a Qualified Service Engineer at the end of every
operating period.
Careful servicing will ensure 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 7 "Turning off the
boiler").
instructions pertaininG to the user
resettinG
errors

11. SERvICInG InStRUCtIOnS

To RESET the gas boiler, turn selector (Figure 2) to
"R" for at least 2 seconds. If the fault persists, call an
authorised service centre.
note: It is possible to carry out n° 5 relighting
attempts in a row, after which the RESET
function is disabled and the gas boiler still
blocked.
To carry out a new RESET attempt, turn the
selector (figure 2) in OFF position for at least 2
seconds.
corrective action
Turn selector (figure 2) to "R" for at least 2 seconds. If this
fault persists, call an authorised service centre.
Turn selector (figure 2) to "R" for at least 2 seconds. If this
fault persists, 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 as specified.
See section 6. If this fault persists, call an authorised
service centre.
Call an authorised service centre.
Turn selector (figure 2) to "R" for at least 2 seconds. If this
fault persists, call an authorised service centre.
6
924.674.3 - GB