Ariston NEXT SFT 14 Podręcznik użytkownika - Strona 22
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Drukuj stronę5. appliance protection devices
5. Appliance shut-off conditions
The appliance is protected from malfunctions by means of
internal checks performed by the electronic P.C.B., which
stops the appliance from operating if necessary.
In the event of the appliance being shut off in this manner, a
code appears on the control panel display which refers to the
type of shut-off and the reason behind it.
Switch off the appliance. Make sure the external electric
isolation switch is in the OFF position, shut off the gas isolation
valve and contact a qualifi ed technician.
5.1. Table summarising error codes
Error code
Description
Control board - no display, after pressing the ON button
A 1
A 1
No fl ame detected
A 2
A 2
Overheating
Air pressure switch error
A 3
A 3
The error is indicated by the symbol
the display shows the code
A 4
A 4
Flame lift
A 5
A 5
Fan speed error
A 6
A 6
Hot water temperature sensor error
A 7
A 7
Cold water temperature sensor error
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- There is no electrical supply
Verify the electrical connection to the main unit
- Problem detected on the electronic card or fuse
Replace the card or fuse.
- Gas isolation valve closed
Open the valve and follow the activation procedure
- Check the ignition electrode
- Check the detection electrode
- A temperature higher than 85°C has been
detected.
Check the water pressure
- Check the air pressure switch
to follow
- Check the fan
- Check the ignition electrode
- Check the detection electrode
- Check the supply voltage of the card
- Check the gas supply pressure
- Check the fl ue installation
- Check the Hot Water temperature sensor
- Check the Cold Water temperature sensor