Removing The Gas Valve; Access To The Water Circuit; Removing The Main Flow Switch; Removing The Pump Pressure Switch - Ariston GENUS 27 PLUS Installation Instructions Manual

1.4.3 Removing the gas valve

Important. ensure gas supply to boiler is turned off.
Removing the gas valve
1. Disconnect the cables from the solenoid and
modureg;
2. Remove the spark generator (see section 1.4.2);
3. Release the nuts "S" using a 30 mm open ended
spanner (see fig. 1.26 - 1.27);
4. Remove the gas valve (see fig. 1.28).
S
S
Fig. 1.26
Fig. 1.27
Fig. 1.28

1.5 Access to the Water Circuit

Important! Before any component is removed, the boil-
er must be drained of all water.
1.5.1 Removing the "main circuit flow switch"
1. Remove the cable of the main circuit flow switch "T"
(do not pull the wires);
2. Remove the screws "U" (see fig. 1.29);
3. Remove the main circuit flow switch.
U

1.5.2 Removing the pump pressure switch

1. Remove the cable of the pump pressure switch "V"
(see fig. 1.30)
2. Unscrew the pump pressure switch by using a
spanner on the nut "X"(see fig. 1.31);
3. Remove the pump pressure switch.
X
T
Fig. 1.29
V
V
Fig. 1.30
Fig. 1.31
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