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restarting. The cause of the alarm situation should be clarified and precaution
measures should be taken before restarting the burner (performed by switching
OFF and back ON the main power supply of the burner);
o
Reversible liquid crystal thermo sticker, which shows the operating
temperature in the zone around the sticker, considered as characteristic for the
condition of the burner and the heating system in total. In indirectly indicates
the need for ash deposition cleaning of the heating appliance as well as the
chimney;
