MAINTENANCE INSTRUCTIONS
50
6.8 Troubleshooting
To display the last 5 errors, keep pressed the ‘
’ INFO button, in OFF mode position, for 5 seconds.
The errors number
will appear in chronological order (-1- = first fault… -5- = last fault)
. Use ‘
’ and ‘
’ buttons of
Heating
Temperature setting, to scroll the list of saved errors. To reset the errors list press the‘
’ RESET button. Press the ‘
’
INFO button to exit the errors display mode.
ERROR
CODE
PROBLEM
POSSIBLE CAUSE
REMEDY
RESET
E01
IONISATION
PROBLEM
WITHOUT FLAME IGNITION
a.
NO GAS.
b.
IGNITION ELECTRODE BROKEN OR
EARTHED.
c.
GAS VALVE MALFUNCTION.
d.
MECHANICAL MINIMUM
ADJUSTMENT (ON GAS VALVE) SET
TOO LOW OR IGNITION SEQUENCE
SET TOO LOW.
e.
GAS VALVE INLET PRESSURE TOO
HIGH (FOR LPG BOILERS ONLY ).
f.
THE CONDENSATE DISPOSAL
SYSTEM IS BLOCKED.
WITH FLAME IGNITION
g.
IONISATION ELECTRODE
MALFUNCTION.
h.
IONISATION ELECTRODE CABLE
DISCONNECTED.
a.
CHECK MAINS
SUPPLY.
b.
REPLACE PART.
c.
REPLACE PART.
d.
REGULATE
MECHANICAL
MINIMUM OR SLOW
IGNITION.
e.
CHECK THE MAXIMUM
PRESSURE SETTING.
f.
CHECK THE
CONDENSATE
DISPOSAL SYSTEM
AND EMPTY THE
CONDENSATE TRAP.
g.
REPLACE PART.
h.
CONNECT THE
IONISATION
ELECTRODE CABLE.
Manual Reset
(press the ‘
’
Reset button)
E02
SAFETY
THERMOSTAT
TRIPPED
i.
THERMOSTAT MALFUNCTION OR
OUT OF CALIBRATION.
j.
THERMOSTAT CABLE
DISCONNECTED.
i.
REPLACE PART.
j.
CHECK THE WIRING.
Manual Reset
(press the ‘
’
Reset button)
E03
FLUE SAFETY
THERMOSTAT
k.
THERMOSTAT BROKEN;
l.
THERMOSTAT CABLE
DICONNECTED;
m.
THERMOSTAT LOCK OUT. (HIGH
FLUE TEMPERATURE)
k.
REPLACE PART;
l.
CHECK THE
ELECTRICAL
CONNECTION;
m.
RESTART AND CHECK
THE THERMOSTAT
Manual Reset
(push the flue
safety thermostat
reset button )
AIR PRESSURE
SWITCH
n.
SWITCH OUT OF ORDER.
o.
INLET OR OUTLET FLUE GAS
DUCTS OBSTRUCTED.
p.
SWITCH CABLE NOT STABLE.
n.
REPLACE PART.
o.
CHECK FLUE GAS
DUCTS.
p.
CHECK CABLE.
Manual Reset
(press the ‘
’
Reset button)
E04
NO WATER IN
THE SYSTEM
q.
INSUFFICIENT WATER PRESSURE
IN THE SYSTEM (STOPS AT 0.5
BAR).
r.
WATER PRESSURE SWITCH CABLE
DISCONNECTED.
s.
WATER PRESSURE SWITCH
MALFUNCTION.
q.
FILL THE SYSTEM.
r.
CHECK THE WIRING.
s.
REPLACE PART.
Automatic
E05
HEATING
SENSOR
t.
SENSOR MALFUNCTION OR OUT
OF CALIBRATION (RESISTANCE
VALUE 10 kOhms AT 25 °C).
u.
SENSOR CABLE DISCONNECTED
OR WET.
t.
REPLACE PART.
u.
CHECK THE POWER
SUPPLY CONNECTION;
Automatic
E06
D.H.W. SENSOR
v.
SENSOR MALFUNCTION OR
INCORRECT (RESISTANCE VALUE
10 kOhms AT 25 °C).
w.
SENSOR CABLE DISCONNECTED
OR WET.
v.
REPLACE PART.
w.
CHECK THE POWER
SUPPLY CONNECTION
.
Automatic