Ariston EURO COMBI A/23 MFFI Servicing Instructions - Page 7

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Removing the main heat

exchanger

B029

1. Drain the boiler of water;

2. Release the two connection nuts "I" connecting the exchanger to the flow

and return pipes (see fig. 1.18) ;

3. Pull it straight out (see fig. 1.19).

Fig. 1.18

1. Disconnect the electrical connections "K" and silicone pipes "L" from their

2. Remove screws "J" on the top of the sealed chamber (see fig. 1.21) ;

connection points (see fig. 1.20) ;

Use a No. 2 star tip screwdriver to remove the switch from the plate.

Fig. 1.20

Fig. 1.19

Fig. 1.21