l remove the nuts E from the side of the burner;
l take out the heat exchanger H and wash it using a 20% acetic acid solution, removing scale using
implements that do not scratch the lining (e.g. wood or plastic). At the end of the process, rinse
thoroughly.
l disconnect the power supply cable and all the pipes/hoses connected to the electric pump and the
cover O;
l undo the panel fastening nuts and remove it, making sure not to damage the gasket L;
l unscrew and remove the screws M to release the filter N and wash it in a 20% acetic acid solution;
l using a wooden or plastic scraper, scrape the inside of the vaporiser chamber.
14.2
Cleaning the
burner
The burner must be checked by authorised and qualified personnel once or twice a year, according to
use.
Before performing any maintenance on the burner, check its general condition, carrying out the
operations listed below:
l remove the burner head as described previously;
l using a brush, clean the inside of the burner head; make sure not to crush the metal mesh (Fig. 14.e);
l detach all gas and electrical connections from the burner assembly;
l check for dust deposits on the fan and if necessary remove the parts required to clean it (Fig. 14.f).
l clean the fan using a brush (Fig. 14.g).
Important: to avoid damaging the fan, never use a jet of compressed air when cleaning it.
When reassembling the parts, check:
l the condition of the gaskets (replace if necessary);
l that the position of the electrodes corresponds to the figure.
Fig.14.e
Fig.14.f
102|14. Spare parts and maintenance
gaSteam - UG +0300090EN rel. 1.2– 09.10.2018
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