06/2014 - Art. Nr. 4200 1057 7400
61
en
Technical assistance
Potential setbacks
Anomaly causes and their removal
In case of anomalies, the following
essential prerequisites for the plant to
function properly must be checked:
1. Is the appliance powered?
2. Is there any light oil in the tank?
3. Are the stop valves all open?
4. Are the adjustment and safety
devices—e.g. boiler thermostat, safety
device in case of water shortages, limit
switches, etc.—all set?
If the anomaly persists even after the
above-mentioned points have been
checked, refer to the following table.
The safety components must not be
repaired, but replaced with components
bearing the same item code.
Exclusively use the manufacturer's
original spare parts.
NB: After each intervention, check
the following:
- The combustion values in operating
conditions (boiler room door closed,
cover mounted, etc.).
- Record the combustion values in the
heating plant booklet.
Error code table
Flashes «AL» Possible causes
(LED)) term. no.10
2 flashes on No flame at the end of the safety time at «TSA» ignition.
- defective solenoid valves - defective flame detector
- incorrect burner adjustment - defective electrodes
3 flashes on Not used
4 flashes on Extraneous lights during pre-ventilation phase
5 flashes on Not used
6 flashes on Not used
7 flashes on Flame lacking too many times during operation
(no. of cycle repetitions limit exceeded) - defective solenoid valves.
- defective flame detector - incorrect burner adjustment.
8 flashes on Fuel heating time check
- More than 5 change-overs of the pre-heater consent (during pre-ventilation)
9 flashes on Not used
10 flashes off Output contacts defective or failure of the internal device
on More than 3 temporary errors in the output contacts.
