3.4 Troubleshooting
Fault Diagnosis
The boiler is equipped with an advanced self-diagnosis system. In the event of trouble with the boiler, the 3 LEDs
will indicate the code of the fault.
There are faults that cause shutdown: in order to restore operation it suffices to turn the selector (ref. 3 - fig. 1)
onto RESET for 1 second and then back onto
(summer) or onto
(winter) or with the RESET on the optional
remote timer control if this is installed; if the boiler fails to start, it is necessary to resolve the fault indicated by the
operating LEDs.
Other faults cause temporary shutdowns that are automatically reset as soon as the value comes back within the
boiler’s normal working range.
Taura 32 MCS
33
• No circulation
of water in the system
• Air in the system
• Check the circulator
• Vent the system
No burner
ignition
Flame present with burner
off signal
Air pressure switch
(fails to close the contacts
within 60 sec. of turning on
the fan)
Low system
pressure
Delivery sensor fault
Tap water sensor fault
Fault
Possible cause
Cure
Green
Yellow
Red
• Heating sensor
damaged
• No circulation
of water in the system
• Air in the system
• Check the gas flow
to the boiler is regular
• Check the wiring of the electrode
and that it is correctly
positioned and free of any deposits
• Check and change the gas valve
• Adjust the ignition power
• Check the correct
positioning and operation
of the heating sensor
• Check the circulator
• Vent the system
• Electrode fault
• Card trouble
• Air pressure switch contact
open
• Incorrect wiring
to the air pressure switch
• Wrong diaphragm
• Flue not correctly
sized or obstructed
• System empty
• Water pressure switch not
connected or damaged
• Sensor damaged
• Wiring shorted
• Wiring broken
• Sensor damaged
• Wiring shorted
• Wiring broken
• Check the ionizing electrode
wiring
• Check the card
• Check the wiring
• Check the fan
• Check the pressure switch
• Change the diaphragm
• Fill the system
• Check the sensor
• Check the wiring or change
the
sensor
• Check the wiring or change
the
sensor
• No gas
• Detection/ignition
electrode
fault
• Defective gas valve
• Ignition power
too
low
LED key
On
Off
Blinking (fast)
Exchanger protection trips.
(The LEDs blink alternately)
Overheating protection
trips
Содержание Taura 32 MCS
Страница 92: ...92 Taura 32 MCS 1 93 2 94 3 99 4 a a 106 90 396 92 42 73 23 93 68 89 336 93 68...
Страница 94: ...94 Taura 32 MCS 1 3 3 led RESET 1 30 3 1 0 led 2 3 1 4 1 0 1 5 bar 7 74 2 2 1 2 2 90 396 LEJ LINE...
Страница 95: ...95 Taura 32 MCS 2 3 6 IV 25 Fr 6 C 2 4 7...
Страница 103: ...103 Taura 32 MCS 3 2 1 3 4 3 3 1 1 5 bar...
Страница 104: ...104 Taura 32 MCS A A B 4 1 2 3 4 10 15 5 5 1 A 2 3 B...
Страница 105: ...3 4 3 led 3 1 RESET 1 RESET led 105 Taura 32 MCS 60 sec led led...
Страница 110: ......
Страница 111: ......