Section 1: Descaling the E tank
1 Switch off the tank with the Q-shaped button on top. Do not unplug it or switch off the power yet.
2 Dispense boiling and cold water together. Leave it to run until the water is completely cold and
the hose between the tap and the tank has cooled down.
3 Close the stop valve (small grey knob) on the inlet combination.
4 Open the boiling-water tap. If it is depressurised, no water will flow out of it.
5 Unplug the tank and disconnect the LED cable from the back of the tank.
6 Disconnect the flexible hose between the tap and the tank by turning the nut anti-clockwise
(use spanners 10 and 14).
7 In case of a PRO3-VAQ E tank, disconnect the hose from the inlet combination by turning the
nut anti-clockwise (use spanner 24). In case of a COMBI E tank, disconnect the two hoses from
the mixing valve (use spanner 17 and 24). Remove the tank from the kitchen cabinet.
COLD
Cold
Hot
2
3
4
5
1
6
6
7
Gasket, big and small washer
Pipe wrench and allen key
Limescale scraper
8 ×
10
14
O-ring and Scotchbrite
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