Saunier-Duval-Thema-Classic-F24e-Installation-manual

16 Fault FindingF1 FAULT DISPLAYEDFAULT: THE BURNER DOES NOT LIGHT AT ALL, BUT THERE IS AN IGNITION SPARK.Are the gas taps on?YESIs there 24Vdc at the gas control valve?for testing see component testing data.YESTest the gas control valve.Check resistance of safety valve coil.NONOTurn on the gas taps.Check the wiring.If the problem persists, change thecontrol board (PCB).FAULT: THE ROOM TEMPERATURE IS INADEQUATE AND RADIATORS ARE LUKE-WARM.Is the room thermostat and or radiatorset high enough and calling for duty?NOYESIs the heating temperature on the boilerset high enough?YESTurn up settingsIs the heating power adequate?- Check set point P3. (Refer to Commissioning)- Check dip switch setting. (Refer to Commissioning)- Check the adjustment of the by-pass internal andexternal (If fitted). - F24E Only Check the 3-way valveis not passing into the domestic hot water heat exchanger.4000124050-238