Saunier-Duval-Thema-Classic-F24e-Installation-manual
Saunier-Duval-Thema-Classic-F24e-Installation-manual
Saunier-Duval-Thema-Classic-F24e-Installation-manual
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16 Fault FindingFAULT: NO HEATINGAre the external heatingcontrols calling for heat?YESIs the polarity correct?YESConnect 1 and 2 on J10,does boiler fire in central heating?YESFaulty 230V controls board.NONONORectify fault on external controls.Rectify, check the 230Vcontrols board.Faulty main PCB.F24E ONLYFAULT: NO HOT WATER, BUT THE HEATING IS WORKINGIs the water flow rate greaterthan 1.7l/min. (threshold figure).YESIs flow detector operating ?YESNONOCheck the cold water inlet filterfor dirt. Is the cold water tap fully open ?Check the heat exchanger for scaling.Change or clean it.Check the connectors on theflow sensor and the control board (PCB).If the fault persists, fit a relplacementcontrol board (PCB).118004000124050-236