heating element or one shot gone ,its on the heater box 2 brass screws for heater and a long yellow wire for one shot but test which one is faulty ith a meter
a continuity tester is made up of them parts remember your schools lessons .it tests a curcuit like fuses and bulbs , bit like a meter ,place wire and the other end of the tester on the fuse and then the heater , it lights up it works , google or a tester in maplins ebay or rs etc.
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