Ariston Type C Installation Instructions Manual page 38

B
IS THE
AIR PRESSURE SWITCH
ACTIVATED?
YES
DOES
THE SPARK
SEQUENCE
START?
YES
IS THE BURNER
ALIGHT?
YES
HAS THE
BOILER SAFETY
SHUTDOWN BEEN
ACTIVATED?
NO
IS
THERE STILL
A PROBLEM?
NO
NORMAL
OPERATION
18
CHECK
∆
NO
P ON PRESSURE
TEST POINT
1 - C
HECK
ELECTRODES
2 - C
HECK THE CABLES
NO
3 - C
HECK SPARK GENERATOR
4 - C
HECK IGNITION ELECTRODE
CABLES
1 - C
HECK POWER SUPPLY TO
THE GAS VALVE
NO
2 - C
HECK OPERATION OF THE
GAS VALVE
3 - R
EPLACE THE GAS VALVE
YES
P
RESS THE RESET
BUTTON
BOILER
NO
WORKING?
YES
NORMAL
OPERATION
FAULT LIST
1
N N
OISEY OPERATION OISEY OPERATION
YES
2
D D / /
ECREASE ECREASE INCREASE OF HEATING CIRCUIT INCREASE OF HEATING CIRCUIT
PRESSURE PRESSURE
3 R R
EPEATED SHUTDOWNS EPEATED SHUTDOWNS
4
R R
EPEATED OPERATION OF SAFETY THERMOSTAT EPEATED OPERATION OF SAFETY THERMOSTAT
5
I I
NSUFFICIENT RADIATOR TEMPERATURE NSUFFICIENT RADIATOR TEMPERATURE
∆
P 0.5 mbar
∆ ≤
P 0.5 mbar
/R
EPLACE IGNITION
1 - C
HECK IF THE FLAME
STRIKES THE DETECTION
ELECTRODE
2 - C -
HECK THE SOFT LIGHT
GAS PRESSURE
3 - C /R
HECK EPLACE DETECTION
ELECTRODE
- M - M
AIN HEAT EXCHANGER FAULTY OR BLOCKED AIN HEAT EXCHANGER FAULTY OR BLOCKED
WITH LIME WITH LIME
- L - L
OW HEATING SYSTEM WATER PRESSURE OW HEATING SYSTEM WATER PRESSURE
- C - C
HECK GAS PRESSURES HECK GAS PRESSURES
- C - C
HECK HEATING THERMOSTAT HECK HEATING THERMOSTAT
- C - C
HECK FAN HECK FAN
- C - C
HECK PUMP HECK PUMP
- C - C
HECK FOR LEAKS ON THE HEATING CIRCUIT HECK FOR LEAKS ON THE HEATING CIRCUIT
- F - F
AULTY FILLING LOOP AULTY FILLING LOOP
- F - F
AULTY EXPANSION VESSEL AULTY EXPANSION VESSEL
- F - F
AULTY DETECTION ELECTRODES AULTY DETECTION ELECTRODES
- C - C
HECK GAS PRESSURES HECK GAS PRESSURES
- C - C
HECK FLAME DETECTION ELECTRICAL CIRCUIT HECK FLAME DETECTION ELECTRICAL CIRCUIT
- F - F
AULTY HEATING THERMOSTAT AULTY HEATING THERMOSTAT
- F - F
AULTY OVERHEAT THERMOSTAT AULTY OVERHEAT THERMOSTAT
- P - P
RESENCE OF AIR IN THE HEATING CIRCUIT RESENCE OF AIR IN THE HEATING CIRCUIT
- C - C
HECK BURNER PRESSURES HECK BURNER PRESSURES
- C - C
HECK EXCHANGER FLUEWAY HECK EXCHANGER FLUEWAY
- C - C
HECK HEATING THERMOSTAT HECK HEATING THERMOSTAT
- C - C
HECK BY HECK BY
- C - C
HECK GAS PRESSURE HECK GAS PRESSURE
1 - C
HECK AIR PRESSURE
SWITCH CABLE
2 - C /R
HECK EPLACE AIR
PRESSURE SWITCH
3 - C /R P.C.B.
HECK EPLACE
(CBM2)
1 - C
HECK EXHAUST DISCHARGE
2 - C
HECK VENTURI AND TUBES
3 - C
HECK THE FAN EFFICIENCY
4 - R
EPLACE FAN
5 - C /R P.C.B. (CBM2)
HECK EPLACE
4 - C /R P.C.B. (CBM2)
HECK EPLACE
4 - C /R
HECK EPLACE
P.C.B. (CBM2)
POSSIBLE CAUSES
- -
SCALE DEPOSITS SCALE DEPOSITS
- -
PASS PASS
B063