Carimali CENTO50, Инструкция по установке и эксплуатации, Страница: 22 / 25

LB-05053-03-GB Pag. 22 03-04-13
SECURITY - ALARMS
1. Boiler filling alarm
Causes: the stage of boiler fillings has exceeded the maximum time of 120 seconds; the level of the probe (SLC) has not been reached.
Result: the machine is OFF, and all the keypad leds flash simultaneously:
Solution: carry out the following controls.
•
Level probe (SLC) is dirty, so isolated from the water (the complete filling of the boiler is checked)
•
no water from mains
•
low water pressure
•
faulty motor pump
•
faulty filler solenoid valve
•
incorrect electrical connections (level probe (SLC) cord stopped.
2. Heating time out
Cause: the programmed temperature has not been reached in the maximum limit of 30 minutes.
Result: the heating is stopped. The LEDs of the keys scroll from left to right and from right to left.
Solution:
•
Check the electrical connections to the heating element
•
Faulty heating element
3. Turbine alarm.
Cause: the volume meter is not sending signals to the control unit within a time-out of 5 seconds.
Result: delivery continues up to a time-out of 120 seconds or until the selected key is pressed, the leds of the key pressed flash and the
display shows:
Solution: carry out the following controls.
•
No water from mains (coffee is not dispensed)
•
clogged group piston filters (coffee is not dispensed)
•
faulty group solenoid valve (coffee is not dispensed)
•
clogged entrance filters (coffee is not dispensed)
•
blocked or faulty volume meter (coffee dispensed continuously)
•
faulty electrical connection (coffee dispensed continuously).
Note:
If the coffee is dispensed continuously, use the machine as if it were manual: press the required key to start up the dose, then press the
same key to stop the dose being dispensed, after checking the amount in the cup.
The machine will stop automatically the delivery if the turbine will have counted 500 ml (function anti-flood).
4. Safety thermoswitch operation.
Cause:
The temperature of the boiler has reached the limit of 160°C. on a 1 or 2 groups machine
The temperature of the boiler has reached the limit of 169°C. on a 3 groups machine
Result: the heating is interrupted.
Solution: carry out the following controls.
•
Level probe (SLC) earthed
•
Faulty temperature probe
•
Faulty Triac
•
Defective inlet solenoid valve
WARNING:
To activate the safety Klicson, it is necessary to press the button placed at the centre of the thermostat itself.