38Servicing InstructionsOperating TroubleIn case of operating trouble it shouldbe checked whether the system is inproper working order.Make a check for the following:1.Availability of fuel. Availability of fueloil in the tank.2.Availability of electric power in theburner system.3.Proper functional order and setting ofall control and safety instruments suchas temperature controller, safetylimiter, water failure cut-out, electricallimit switches, etc. If the trouble is notfound to be due to any of the above-mentioned points it will be necessaryto test the burner functions verycarefully.Prevailing conditions:The burner will be found to be out ofoperation and in faulty and interlockedposition.Proceed with searching for the cause ofthe trouble and eliminate it. Unlock theautomatic furnace controller by pressingthe fault eliminate key and start the bur-ner.Do not press the fault eliminate keylonger than 10 seconds.The start-up program will be initiatedand should be carefully monitored.The possible cause of the fault may bequickly found by reference to the faultindicator of the automatic furnace con-troller and watching the start-up andoperating program.