This article covers maintenance and cleaning of the MLG96DMAT / MLG96DZW / MLG96DMATBE / MLG96DZWBE by Boretti.
Gas taps
If the gas taps don’t work well please contact the service department. Inside of oven The oven should always be cleaned after use when it has cooled down. The cavity should be cleaned using a mild detergent solution and warm water. Suitable proprietary chemical cleaners may be used after first consulting with the manufacturers recommendations and testing a small sample of the oven cavity. Abrasive cleaning agents or scouring pads/cloths should not be used on the cavity surface. Note The manufacturers of this appliance will accept no responsibility for damage caused by chemical or abrasive cleaning. Let the oven cool down and pay special attention no to touch the hot heating elements inside the oven cavity. Burners and pan supports These parts must be cleaned using a sponge and soapy water or other suitable non-abrasive products. Dry with a soft cloth. Check that the electrode “S” (figs. 7.1, 7.3) next to each burner is always clean to ensure trouble-free sparking. Check that the probe “T” (figs. 7.1, 7.3) next to each burner is always clean to ensure correct operation of the safety valves.
⚠ Warning! Not dishwasher safe. If left on the surface for a length of time, acidic substances such as lemon juice, tomato sauces and passata, vinegar and other similar products will damage the surface and dull its shine. After cleaning, the burners and their flame spreaders must be well dried and correctly replaced. It is very important to check that the burner flame spreader and the cap have been correctly positioned. Failure to do so can cause serious problems. Correct replacement of the auxiliary and semi-rapid and rapid burners It is very important to check that the burner flame distributor “F” and the cap “C” has been correctly positioned (see figs. 7.1 - 7.2) - failure to do so can cause serious problems. Correct position of the double-ring compact burner The burner must be correctly positioned (see fig. 7.5); the burner rib must enter in their logement as shown by the arrow (see fig. 7.3). Then position the cap “A” and the ring “B” (figs. 7.4 - 7.5). The burner correctly positioned must not rotate (fig. 7.4). Note Continuous use may cause a change in the glaze around the burners and grids, corresponding to the areas exposed to the heat. This is a natural phenomenon and does not prevent the parts from working properly. Note Both the probe and ignition plug must be very carefully cleaned. To avoid damage to the electric ignition do not use it when the burners are not in place. Gas maintenance Replacement of the injectors of the burners Select the injectors to be replaced according to the “Table for the choice of the injectors”. The nozzle diameters, expressed in hundredths of a millimetre, are marked on the body of each injector. If the injectors are not supplied they can be obtained from the “Service Centre”. Replacement of the injectors of the cooktop burners To replace the injectors proceed as follows: Remove pan supports and burners from the cooktop. Using a wrench, substitute the nozzle injectors “J” (figs. 9.10a, 9.10b) with those most suitable for the kind of gas for which it is to be used. The burners are conceived in such a way so as not to require the regulation of the primary air. Minimum burner setting adjustment Check whether the flame spreads to all burner ports when the burner is lit with the gas tap set to the minimum position. If some ports do not light, increase the minimum gas rate setting. Check whether the burner remains lit even when the gas tap is turned quickly from the maximum to the minimum position. If the burner does not remain lit, increase the minimum gas rate setting. The procedure for adjusting the minimum gas rate setting is described below. Light the burner. Set the gas valve to the “minimum rate” position. Remove the knob. Using a screwdriver turn the screw “A” until adjustment is correct (fig. 9.11). Normally for ULPG, the regulation screw is tightened up. TABLE FOR THE CHOICE OF THE INJECTORS - Cat: II 2EK3B/P G30/G31 30/30 mbar G20 20 mbar G25.3 25 mbar BURNERS Nominal Power [Hs - kW] Reduced Power [Hs - kW] Ø injector [1/100 mm] Ø injector [1/100 mm] Ø injector [1/100 mm] Auxiliary (A) 1,00 0,40 50 72 (X) 72 (F1) Semi-rapid (SR) 1,75 0,45 65 97 (Z) 94 (Y) Rapid (R) 3,00 0,75 85 128 (H3) 125 (F3) Double-ring compact (DCC) 4,00 1,50 100 150 (H3) 145 (F3) NL TABLE FOR THE CHOICE OF THE INJECTORS - Cat: II 2E+ 3+ G30/G31 28-30/37 mbar G20/G25 20/25 mbar BURNERS Nominal Power [Hs - kW] Reduced Power [Hs - kW] Ø injector [1/100 mm] Ø injector [1/100 mm] Auxiliary (A) 1,00 0,40 50 72 (X) Semi-rapid (SR) 1,75 0,45 65 97 (Z) Rapid (R) 3,00 0,75 85 128 (H3) Double-ring compact (DCC) 4,00 1,50 100 150 (H3) BEFR BE AIR VENT NECESSARY FOR GAS COMBUSTION = (2 m3 /h x kW) BURNERS Air necessary for combustion [m3 /h] Auxiliary (A) 2,00 Semi-rapid (SR) 3,50 Rapid (R) 6,00 Double-ring compact (DCC) 8,00 Lubrication of the gas taps In case of difficulty in the gas taps operation, call the Service department. Important All intervention regarding installation maintenance of the appliance must be fulfilled with original factory parts. The manufacturer declines any liability resulting from the non-compliance of this obligation.