Ariston AQUABRAVO ITSI 255 Instructions For Installation, Servicing And Use - Page 26

Browse online or download pdf Instructions For Installation, Servicing And Use for Water Heater Ariston AQUABRAVO ITSI 255. Ariston AQUABRAVO ITSI 255 36 pages. Unvented hot water storage cylinders

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MAINTENANCE

5.1

ecH

nti

corrosion

5.2

HerMAl

5.3

MMersion

eAter

5.4

nventeD

ontrols

To ensure efficient and safe operation, and to maintain the warranty, it is

necessary to ensure the appliance is serviced annually by a competent

person.

Before servicing, preliminary electrical system checks must be carried out to

ensure electrical safety (i.e. polarity, earth continuity, resistance to earth and

short circuit).

wArninG: SWITCH OFF THE POWER SUPPLY BEFORE WORKING ON

THE APPLIANCE.

ysteM

trouble-shooting:

1) The green L.E.D. is NOT on:

- Check to see that the circuits electric plug is connected (if not,

- Check to see that the P.C.B, is supplied with electricity (if not, replace

- Check to see that 230 V electricity is supplied (if not, ensure that 230 V

- If all these checks fail to locate the problem, replace the electronic

2) The red L.E.D. is on:

- Check to see that the tank is filled with water (if not, fill it before

- Check to see that the clip-on circuit connector is in the proper position

- Check to see that the electrodes connection lead is property connected

- Check to see that the connection lead to the tank is properly connected

- Check to see that the two leads from the clip-on circuit connector are

- If all these checks fail to locate the problem, replace the electronic

ote

1) Disconnect the two supply cables from the P.C.B. to the supply terminal;

2) Disconnect the clip-on circuit connector and polarising slot which

connects the circuit to the tank and the electrode;

3) Disconnect the P.C.B. from its supporting plate (plastic clips in the 4

corners) and;

4) Replace the defective circuit with a new one, then re-install in reverse

order to the above.

If the thermal cut-out has operated the cause must be found before resetting

(

)

out

(see section 6).

(

)

Should the immersion heater(s) become scaled, we would recommend that

the immersion heaters be replaced, a scale reducer be fitted on the cold

water supply to the cylinder and that the thermostat is set below 60

prevent further scale formation.

Check controls as per the following:

1) Line strainer - with the water supply turned off remove screen from

strainer and clean off any debris;

2) Expansion vessel - with the water supply turned off and taps open, check

expansion vessel pressure and top up as necessary;

3) Temperature & pressure relief valve - with the water supply turned on,

check manually by lifting the test lever/turning the test knob (ensure valve

connect);

the supply cable);

is supplied);

circuit (installer).

carrying out the following checks);

(if not, position correctly);

(to check this, gently pull on it) (if not, replace the electrode);

to the tank (if not, connect properly); .

not damaged, stripped, etc. (if so, replace the electrode);

circuit.

: To replace the P.C.B, there is no need to drain the cylinder;

C to