Westen Pulsar E - Page 39

39
I N S TA L L E R S e c t i o n ( e n )
7113126.02 (3-08/13)
CODE
DISPLAYED
FAULT POSSIBLE REASON SERVICE ACTION
E25 No water safety trip. • No water in the CH circuit
(pump blocked or exchanger
obstructed).
• CH ow NTC probe faulty.
• Electronic board faulty.
• Check pump operation (unscrew the front cap and
release the rotor with a screwdriver).
• Check the pump power input wiring.
• Check the CH ow NTC probe (*).
• Check whether the exchanger is clogged.
E26 CH delivery NTC probe
overheating safety trip.
• See the reasons indicated in E25. • See the actions indicated in E25.
E35 Parasite ame (ame
error).
• The electronic board is not
earthed.
• Flame sensing electrode faulty or
incorrectly positioned.
• Electronic board faulty.
• Check the continuity of the earth connections between
the electronic board (X4 connector) and the power
supply terminal block.
• Check the ame sensing electrode is in good
condition and correctly positioned (see the
POSITIONING THE IGNITION AND FLAME-
SENSING ELECTRODE section).
E36 Fumes NTC probe fault. • Fumes NTC probe faulty
(shorted).
• Fumes probe wiring shorted.
• Check the fumes NTC probe (**).
• Make sure the fumes probe wiring has not shorted.
E40 - E41 Shutdown due to probable
obstruction of air-ue duct
or insufcient gas inlet
pressure.
• No inlet gas pressure.
• Gas valve modulator wires not
connected.
• Flame sensing electrode faulty or
incorrectly positioned.
• Fumes NTC probe faulty or
incorrectly positioned
• Air-ue duct obstructed.
• Gas valve faulty.
• Electronic board faulty.
• Check the gas supply pressure (for natural gas
Palim.>9mbar).
• Check the connection of the gas valve modulator
wiring to the electronic board.
• Check that the pressure at the burner has been
correctly calibrated (see the GAS VALVE section).
• Check the ame sensing electrode is in good
condition and correctly positioned (see the
POSITIONING THE IGNITION AND FLAME-
SENSING ELECTRODE section).
• Check the fumes NTC probe (**).
• Make sure the air and ue ducts are not obstructed
and have been correctly installed (they must not
exceed the prescribed maximum lengths and must
be tted with the correct diaphragm – see the
INSTALLING THE DUCTS section).
E42 No ame. • Fan not working (fault or no
power).
• Air-ue duct completely
obstructed.
• Electronic board faulty.
• Check that the fan power supply wiring is connected
to the electronic board.
• Make sure the air and ue ducts are not obstructed
and have been correctly installed (they must not
exceed the prescribed maximum lengths and must
be tted with the correct diaphragm – see the
INSTALLING THE DUCTS section).
E43 Shutdown due to probable
obstruction of air-ue duct
or insufcient gas inlet
pressure.
• See the causes indicated in E40
- E41
• Input voltage V<180V
(automatically resets at V>185V
or by pressing “R”).
• Electronic board faulty.
• See the actions indicated in E40 - E41.
• Check whether the power supply reductions are due
to reasons other than the boiler. If so, contact the
electricity provider
E50 Shutdown due to fumes
NTC probe tripping for
overheating.
• Fumes temperature>180°C.
• Insufcient heat exchange on the
water/fumes exchanger.
• Fumes NTC probe faulty.
• Electronic board faulty.
• Check the heat exchange of the water/ fumes
exchanger: insufcient circulation or presence of
scale.
• Check the fumes NTC probe (**).
E55 Gas valve not
electronically calibrated
• The electronic board has not
been replaced and the gas valve
has not yet been electronically
calibrated.
• Electronically calibrate the gas valve (parameters F45
and F48) as described in the GAS VALVE section
E62 Safety shutdown if the
ame signal or fumes
temperature fail to
stabilise
• Flame sensing electrode faulty or
incorrectly positioned.
• Fumes NTC probe faulty.
• Electronic board faulty.
• Check the wire is uninterrupted and makes good
contact with the ame sensing electrode and the
ignition switch.
• Check the ame sensing electrode is in good
condition and correctly positioned (see the
POSITIONING THE IGNITION AND FLAME-
SENSING ELECTRODE section).
• Check the fumes NTC probe (**).
E65 Safety shutdown if the air-
ue duct obstruction test
fails frequently.
• See the causes indicated in E40
- E41.
• See the actions indicated in E40 - E41.