z Eura Technical 2003 Manuale

7/30/2019 z Eura Technical 2003 Manuale

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01 - 2004 rev 0


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EURA E ed SE FUNCTIONING CHECK AND FAULTS FINDING CHARTSThe following check must be executed with the help of the Instructions Manual

REMARK: The lasting check must be executed with a tester on the flow of the , after disconnecting the boiler and after

disconnecting the connector relevant to the component or circuit to be tested.

For the tests on the electrical components check the connections and the contacts of the connections even if not indicated

ABBREVIATIONS: PCB/M = Modulation PCB - PCB/I = Flame check PCB

NO Check the connection and insert the external switch

NO NOYES

Check the supplying cables and

the connections

Give the electrical supply

to the boiler with thebotton O/I

Does the green led flash?

Is the boilerelectrically

supplied?Are there 230v

between L.N. of

M11 of the

PCB/M? YES Replace the fuse and the PCB/MYES

Is the yellow led off? NO - The positioning of the Mixing valve is disabled (parameter 9 on 1)- The antifrost system is on

YES WAIT 80 SECONDS FOR THE POSITIONING OF THE MIXING VALVE

YES The display shows the error code. If the led is constantly on it is possible to reset

with the relevant button, if it is flashing read the following instructions

E01 Block of the ignition board Reset with the button RESETE02 Block for lack of burner ignition Reset with the button RESET

E05 Damaged flow sensor Replace the sensor

E12 Damaged Micro-storage sensor Replace the sensor

NO E18 Water filling in action (led off) Wait 4 minutesE19 Water filling not completed within 4 minutes Reset the el. network

E21 Lack of water. 3 tempts of filling already done Reset the el. network

E22 EPROM errors. Demand for programming Reset the el. network

E 29 Modulator coil in short circuit Replace the coil

E31 Eventual not compatible remote control Replace the eventual remote

Is the red led off?

E 68 Eventual not programmed remote Program it

YESMove the boiler on

Summer

Does the green led switch

on?

NOReplace the

PCB/M

YES NO Controllare il buon funzionamento del galleggiante

o sostituire il micro del flussostato

NO

Regulate the DHW at

maximum and open an

hot water tap.

Does the boiler switch

on?

Is the contact of

DHW micro switch

closed ?

( continuity between

26 and 29 of M5 of

PCB/M

YESReplace the PCB/M after checking that the wires of

the micro are connected and entire

YES NO

Replace the PCB/MNOIs the pump on? Are there 230vbetween the clampsof the pump? YES Replace the pump

YES NO Replace the pressure switch

NO

NO

With boiler off is the

contact between C

and NC of the Flue

press. switch closed? YES Does the fan turn?

( only SE models)

Are there

230v on the

clamps of

the fan?

YES Replace the fan

Switch on the boiler. If

there are not 230v between

41 and 48 of M4 replace the

PCB/I. If not, replace the

PCB/I

YES


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NO Replace the PCB/I

NODoes the sparkle appear

on the burner?

Are the ignition

electrode and its

cable dirty or

damaged?

YESClean or replace

electrodes and cable

For the SE models: check that

the contact between C and NO of

the flue press.switch is closed,

that the pipes are connected and

that the press.switch is efficient

YES Replace the damaged one

NO REMARK: for the flue therm.As first check the draughtNO Replace the damaged one

NO

Have the safety

thermostat and

the flue therm.(E model) the

contact closed?

YES Replace the PCB/I

Does the burner switchon?

During the

ignition, are

there 230 vbetween the

coils of the gas

valve?

(reset if the

boiler goes in

blockYES Replace the valve if gas arrives from the network (IN

plug)

YES NO

Check the regulation of power of slow ign. And of

minimum power of gas valve ( see the Manual )

Replace the PCB/M

Does the flame remain in

slow ignition for 8 secs? NO

Has the power

of slow ignition

been properly

regulated?

(see Manual)

YES Is the modulator

interrupted or in

short circuit ?

NO

YES Replace the modulatorYES

NO Does the flame

remain at minimum

or at slow power?

YESRegulate the maximum

power of the gas valve as

indicated in the Manual.

NO Replace the Iono board

After 8 seconds does the

flame move to the

maximum power?

NODoes the boiler

goes in block

after 10 secs?

YES

Is the ionization

electrode dirty,

wrong regulated or

damaged? YESClean, regulate or replace

the ionization elec.

YES NO

Does the water flow

remain low? YESClean the DHW

exchanger with specific

products

Does the water at the tap

get warm? NO

The water draw

off is superior to

that allowed by

the boiler?

( see the Manual YES Reduce the water draw off at the tapYES

Reduce the draw off at the

tap at 5 l/min

Does the flame modulate

after some seconds?

NOCheck the resistance of

the NTC sensor and

replace it if necessary

0C = 33 k20C = 12,5 k60C = 2,5 k80C = 1,3 k

YES END OF THE DHW TEST CHECK OF THE HEATING

NO Regulate the room thermostatNO

Move the selector on

WINTER with theregulation at maximum

Does the boiler switch on?

Does the Room

Therm. ask forheat?

YES Create a jumper between 5 and 7 of M10 of the PCB/M,

if the boiler doesnt switch on replace the PCB/M

YES NO Regulate the parameterDoes the pump start

working? NOIs the

parameter 5

regulated on the

value 0?YES Replace the PCB/M

YESDo the radiators get

warm?

NO Check that the taps or thermostatic valves are open

YES END OF THE TEST


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Documents

z Eura Technical 2003 Manuale