Maintenance; Draining The Appliance; Routine Maintenance - Ariston 200 Mode D'emploi

Heat pump water heater - OPERATING AND MAINTENANCE INSTRUCTIONS FOR THE USER
H9 Active defrost fault
F1 PCB fault
Excessive number of ON/OFF
F2
(RESET)
Lack of communication between
F3
the PCB and interface
Empty tank (EMPTY), impressed
F4
current anode circuit open
Short-circuit on the impressed
F5
current anode circuit
8. MAINTENANCE (for authorized personnel)
WARNING! Observe the general warnings and safety instructions listed in the previous paragraphs
and strictly adhere to the indications therein contained.
All maintenance operations and interventions should be performed by qualified personnel (i.e. with the
necessary requirements as outlined in the applicable norms in force).
During maintenance it is advisable to wash the tank in order to remove any remaining impurities.

8.1 Draining the appliance

The appliance must be drained if left inactive in a room subject to frost and/or in the event of prolonged inactivity.
When necessary, empty the appliance as follows:
Permanently disconnect the appliance form the mains electricity.
-
Close the shut-off valve, if installed, or the central tap of the domestic water supply network.
-
Open the hot water tap (washbasin or bathtub).
-
open the cock on the safety device (in countries which acknowledge EN 1487) or the special cock installed on
-
the "T" fitting, as described in paragraph 4.4.

8.2 Routine maintenance

It is advisable to clean the evaporator on an annual basis in order to remove any dust or obstructions.
To access the evaporator, it is necessary to remove the fixing screws of the frontal and top cover. Verify that the external
terminal of the air exhaust duct, and the duct itself, are not obstructed or have not deteriorated.
Clean the evaporator with a flexible brush taking care not damage it. In the case you found some bended fins, straighten
them with a special comb, according to the fins spacing (1.6mm). Carry out the same check for the intake duct, if present.
Ensure that the condensate water runs out in a suitable drain and make sure the discharge is made without hindrance.
Check and clean canalizations and grills.
Use only original spare parts.
After each removal is advisable to replace the gasket flange.
During maintenance it is advisable to wash the tank in order to remove any remaining impurities.
Check that the fan is not broken and that the
evaporator is not obstructed. Check whether the 4-
OFF (if T
ON way valve functions properly and replace it if
air <5°C)
necessary. Check the perfect cleaning of grids and
Try turning the appliance off then on again and
OFF OFF
Temporarily disconnect the product and the
OFF OFF
Try turning the appliance off then on again and
OFF OFF verify the operation of the control boards or replace
Verify whether there is any water in the tank, check
OFF OFF
Check or replace the impressed current anode if
ON ON
78
ducts
verify the operation of the control boards, if
necessary
batteries
them, if necessary
or replace the impressed current anode, if
necessary
necessary