Troubleshooting - Ariston A/23 MFFI User Manual

Notes on storing switching times:
If you end your entry of the switching times by pressing the "Prog" key, the
switching time you have entered will be stored and the next memory loca-
tion displayed. Entry of further switching times is also carried out as descri-
bed in "Entering the switching times".
In addition, a complete switching command is stored automatically after
around 90 seconds provided no other key is pressed.
The time switch then enters the automatic operating mode and displays the
current time again.
DELETING INDIVIDUAL SWITCHING TIMES
Press the "Prog" key repeatedly until the switching time you wish to dele-
te is shown in the display.
Then set to "--" using the "h" or "m" key and keep the "
down for around 3 seconds.
The switching time is now erased and the current time is displayed.
TECHNICAL DATA
Ambient temperature: - 10°C to + 55°C
Running reserve: 5 h (not for 1.5 V DC)
Memory locations: 20
Shortest switching time: 1 minute
Programmable: Every minute
14
Supplied By www.heating spares.co Tel. 0161 620 6677
The boiler unit is equipped with safety devices which intervene in certain
situations to shutdown the boiler.
Some of these situations are signalled by the unit and can be corrected by
the user.
SHUTDOWN DUE TO THE FAILURE OF THE
BURNER TO LIGHT AUTOMATICALLY
" key pressed
This anomaly is indicated by the red "B" L.E.D.
To reset the unit, press and then release the "A" button.
At this point, the electronic ignition system will attempt
to light the burner again.
Repeat this procedure as needed. If lighting failure
occurs repeatedly, it is recommended that you contact
one of our Authorised Service Centres.
USEFUL INFORMATION AND

TROUBLESHOOTING

BOILER SHUTDOWN
B
A
B022