Bedienungsanleitung Ariston CLAS HE 38 (Seite 6 von 8) (Englisch)

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user’ manual

Appliance shut-o conditions

The boiler is protected from malfunctions by means of internal

checks performed by the electronic P.C.B., which stops the boiler

from operating if necessary. In the event of the boiler being shut o

in this manner, a code appears on the control panel display which

refers to the type of shut-o and the reason behind it.

Two types of shut-o may occur:

Safety shut-o

This type of error is “volatile”, which means

that the boiler starts up again automatically

as soon as the problem which caused the

shut-o is removed. The display will ash

”Err” and the error code.

In fact, as soon as the cause of the shut-o disappears, the boiler

starts up again and continues to operate normally.

While the boiler is shut o for safety reasons, it is possible to attempt

to restore normal operation by switching the appliance o and on

again using the ON/OFF button on the control panel.

If the boiler still indicates a safety shut-o, switch it o. Make sure

the external electric switch is in the OFF position, close the gas tap

and contact a qualied technician.

Safety shut-o due to insucient water pressure

If the water pressure inside the heating circuit is insucient, the

boiler will perform a safety shut-o. (See table).

To re-pressurise the boiler, it will be necessary to connect

the silver exible hose supplied to the two isolating points

underneath the boiler, once the hose is connected, open up both

of the black quarter turn handles, once the pressure reads 1.5 bar

on the display, close both handles and disconnect the hose .

If the pressure drops very frequently, there may be a water leak

at some point in the system. If this is the case please contact your

installer and ask them to check it.

Operation shutdown

This type of error is “non volatile”, which means that it is not

removed automatically. The display will ash Err and the error

code and the red led lights up “3” .

In this case the boiler does not restart automatically, but it may

be reset by pressing the button. If the problem manifests

itself again after several attempts to reset the appliance, contact a

qualied technician.

IMPORTANT

IF THIS SHUTDOWN OCCURS FREQUENTLY, CONTACT AN

AUTHORISED SERVICE CENTRE FOR ASSISTANCE. FOR SAFETY

REASONS, THE BOILER WILL ALLOW A MAXIMUM OF 5 RESET

OPERATIONS TO TAKE PLACE IN 15 MINUTES (INDIVIDUAL

PRESSES OF THE BUTTON).

Operation shutdown error table

Anti-frost Device.

The anti-frost function acts on the central heating ow temperature probe,

independently from other settings, when the electrical supply is turned

on.

If the primary circuit temperature falls below 8°C the pump will run for 2

minutes.

After the two minutes of circulation (xed) the boiler will check the fol-

lowing:

a) if the central heating ow temperature is > 8°C, the pump stops;

b) if the central heating ow temperature is between 4 and 8°C, the pump

will run for another two minutes;

c) if the central heating ow temperature is < 4°C, the burner will re

(heating position) at minimum power until the temperature reaches

33°C, the burner will go

o and the pump will continue to run for two

minutes.

The anti-frost device activates only when (with the boiler operating cor-

rectly):

- the system pressure is correct,

- the boiler is electrically powered,

- there is a supply of gas.

Display Description

1 01 Overheating

5 01 No ame detection

1 03

Insucient circulation

1 04

1 05

1 06

1 07

3 05

P.C.B error

3 06

P.C.B error

3 07

P.C.B error

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