Troubleshooting - PENSOTTI PNCC-32N Instruction Manual

6.8 Troubleshooting -

The errors number will appear in chronological order (-1- = first fault... -5- = last
seconds.
Heating Temperature setting, to scroll the list of saved errors. To reset the errors list press the'
' ' INFO button to exit the errors display mode.
ERROR
PROBLEM
CODE
E01 IONISATION
PROBLEM
SAFETY
THERMOSTAT
E02
TRIPPED
AIR PRESSURE
E03
SWITCH
NO WATER IN THE
E04
SYSTEM
E05 HEATING SENSOR
E06 D.H.W. SENSOR
E17 MODULATOR
INADEQUATE
E18
CIRCULATION
MAINTENANCE INSTRUCTIONS
To display the last 5 errors, keep pressed the '
POSSIBLE CAUSE
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 ).
WITH FLAME IGNITION
f. IONISATION ELECTRODE
MALFUNCTION.
g. IONISATION ELECTRODE CABLE
DISCONNECTED.
h. THERMOSTAT MALFUNCTION OR
OUT OF CALIBRATION.
i. THERMOSTAT CABLE
DISCONNECTED.
j. SWITCH OUT OF ORDER.
k. INLET OR OUTLET FLUE PIPES
OBSTRUCTED.
l. SWITCH CABLE NOT STABLE.
m. INSUFFICIENT WATER PRESSURE IN
THE SYSTEM (OPENS
ELECTRICALLY AT 7.2 psi).
n. WATER PRESSURE SWITCH CABLE
DISCONNECTED.
o. WATER PRESSURE SWITCH
MALFUNCTION.
p. SENSOR MALFUNCTION OR OUT OF
CALIBRATION (RESISTANCE VALUE
10 kOhms AT 77°F).
q. SENSOR CABLE DISCONNECTED OR
WET.
r. SENSOR MALFUNCTION OR
INCORRECT (RESISTANCE VALUE 10
kOhms AT 77°F).
s. SENSOR CABLE DISCONNECTED OR
WET.
t. GAS VALVE MODULATOR OUT OF
ORDER
u. PRIMARY OR SECONDARY HEAT
EXCHANGER OBSTRUCTED.
v. PUMP MALFUNCTION OR PUMP
IMPELLER DIRTY.
' INFO button, in OFF mode position, for 5
fault). Use '
REMEDY
a. CHECK GAS SUPPLY.
b. REPLACE PART.
c. REPLACE PART.
d. REGULATE
MECHANICAL MINIMUM
OR SLOW IGNITION.
e. CHECK THE MAXIMUM
PRESSURE SETTING.
f. REPLACE PART.
g. CONNECT THE
IONISATION
ELECTRODE CABLE.
h. REPLACE PART.
i. CHECK THE WIRING.
j. REPLACE PART.
k. CHECK FLUE PIPES
l. CHECK CABLE.
m. FILL THE SYSTEM.
n. CHECK THE WIRING.
o. REPLACE PART.
p. REPLACE PART.
q. CHECK THE POWER
SUPPLY CONNECTION;
r. REPLACE PART.
s. CHECK THE POWER
SUPPLY CONNECTION .
t. REPLACE PART.
u. CLEAN OR REPLACE
PART.
70
v. CLEAN OR REPLACE
PART.
' and ' ' buttons of
' RESET button. Press the
RESET
Manual Reset
(press the ' '
Reset button)
Manual Reset
(press the ' '
Reset button)
Manual Reset
(press the ' '
Reset button)
Automatic
Automatic
Automatic
Manual Reset
(Switch off the
power supply)
Manual Reset
(Switch off the
power supply)