Ariston Combi A 24 MFFi - Removing the Pump; Removing the Secondary Heat Exchanger

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18.3.5 Removing the pump
1. Carry out step 18.1.1;
2. Lower the electrical box cover as in step 18.1.2;
3. Remove the PCB cover as in step 18.4.1;
4. Remove the pump plug from the control board and
earth plug from earth socket (see F
ig. 92);
Fig. 92
Fig. 93
Fig. 94
Fig. 95
18.3.4 Removing the secondary heat exchanger
1. Carry out step 18.1.1 and 18.1.2;
2. Remove the 3 way valve motor as in step 18.3.2;
3. Disconnect the expansion vessel pipe.
4. Unscrew the two fixing screws R (see Figs. 90);
S2
S3
Fig. 90
R
Fig. 91
5. Unscrew the two fixing screws R and pull the heat
exchanger toward you (see Figs. 90 &91);
6. Reassemble in reverse order;
The heat exchanger is so designed that it cannot be
remounted incorrectly;
5. Unscrew the pump nut (see Fig. 93);
6. Remove the clip S2 on the pump volute (see Fig. 94);
7. Pull the pump toward you and remove the clip S3
securing the pressure gauge (see Fig. 95);
8. Reassemble in reverse order.