Maintenance; Draining The Appliance - CHAFFOTEAUX AQUANEXT PLUS 200 Instructions D'utilisation

Pressure transducer:
171
decalibration
Electronic expansion valve:
181
KO
High NTC sensor (hot water):
210
short circuit or open circuit
Medium NTC sensor: short
220
circuit or open circuit
Low NTC sensor (heating
230 element zone): short circuit or
open circuit
Low NTC sensor (heating
231 element zone): safety
intervention (1st level)
Low NTC sensor (heating
232 element zone): safety
intervention (2nd level)
Impressed current anode:
240
short circuit
Impressed current anode:
241
open circuit
310 ON/OFF repeated
321 Mainboard: internal fault
Mainboard-display wiring: no
331
communication
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).
After routine or extraordinary maintenance, we recommend filling the appliance's tank with water and draining it
completely to remove any residual impurities.

8.1 Draining the appliance

The appliance must be drained if left inactive in a room subject to frost.
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.
Replace the component
If the error persists, recover the residual gas, find the
ON OFF
leak in the cooling circuit and repair it, empty the cooling
circuit and recharge with 1300 grams of coolant
Replace the coil of the component
If the error persists, recover the residual gas and replace
ON OFF
the component; empty the cooling circuit and recharge
with 1300 grams of coolant
Encoding of domestic water circuit codes
ON OFF Replace the component
ON ON Replace the component
OFF OFF Replace the component
OFF OFF Replace the mainboard
OFF OFF Replace the mainboard
OFF OFF Replace the component
Check the presence of water inside the product
OFF OFF
If the error persists, replace the component
Encoding of electronic circuit codes
Wait 15 minutes before unblocking the product with the
OFF OFF
ON/OFF button
OFF OFF Replace the component
Replace the mainboard-display communication wiring
OFF OFF
If the error persists, replace the mainboard and display.
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