T
V1
C
Fig. 6.a
6. MAINTENANCE AND SPARE PARTS
BEFORE ALL OPERATIONS:
• disconnect the appliance from the mains power supply;
• close the mains water and gas taps;
• drain the water circuit using the manual electric pump function, or drain.
IMPORTANT WARNINGS:
• do not use detergents or solvents to clean the plastic components.
• descaling can be performed using a 20% acetic acid solution, then rinsing with plenty of water.
6.1 Boiler maintenance
Access the boiler as described in "Removing and reassembling the front cover".
Remove panels A and B, as follows (Fig. 6.a):
• remove the boiler steam hose, T;
• undo screws V and V1;
• undo the inside and outside screws that secure panel B;
• remove panels A, B and C.
To remove the exchanger, proceed as follows (Figs. 6.a and 6.b):
• disconnect the cables from the burner electrodes (the detection electrode should be disconnected
from the burner control board, Fig. 6.c position "A");
• remove the fan manifold by undoing the screws B (Fig. 6.c) and remove the burner combustion head
(Fig. 6.d);
• disconnect the cables from the foam detection electrode F (Fig. 6.b);
• unscrew and remove the fastening knobs G;
• remove the boiler cover;
• undo the nuts E from the side of the burner;
• remove the heat exchanger H and clean it using a 20% acetic acid solution, removing any deposits
using implements that do not scratch the lining on the exchanger (e.g. wood or plastic material);
• disconnect the power cable and all the pipes connected to the electric pump and the panel O;
• undo the panel fastening nuts and remove the panel, making sure not to damage the gasket L;
• unscrew screws M to free the steel fi lter N and clean it using a 20% acetic acid solution;
• using a wooden or plastic scraper, scrape the inside of the vaporiser chamber and clean it using a 20%
acetic acid solution.
Part. V+V1
V
B
A
18
Fig. 6.b
gaSteam HARDWARE +030220538 - rel. 1.4 - 22.01.2008