That’s what I was told by an expert but I too didn’t know what it was so I didn’t replace the 1w fuse. I only replaced the 3 components listed. I found the removal of the old components the most difficult but I suppose my iron is only a cheap thing that’s pretty old. I snipped the 2 wires on the...
Some info for anyone interested,
If you trace the circuit from the live mains terminal there is a 1amp fuse next is a 27 ohm 2 watt wire wound resistor, this is the one that blows apart next is a 3 ohm resistor and finally connected to that is a mosfet
RS numbers 6476188 27 ohm 3 watt...
I have the same issue with my t2240. Replace the resistor that I thought was the problem but it blew straight away. So the problem lies else where. By the way I got the resistors (2w 27 ohm) from rs components part number smw227rjt for a couple of quid. Please if anyone else finds a solution...