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Mend ISAR H24 Boiler Changed Fuse

i have an ISAR H24 and the display on the boiler is blank ?

i have an ISAR H24 and over night the led on the boiler has gone blank ive changed the fuse and done all the trouble shooting but there is still no screen to be seen please help thanks nat xx

natalie
June 2010
ISARISAR H24Heating, Home Heating SystemsBoiler Changed Fuse
Check for another fuse, we had the same problem and found an extra fuse in the old airing cupboard.

Allan
June 2010
is the boiler still working? if not it may need a new main pcb, but i'd suspect the wiring harness coneecting the main board to the display board before anything else as they are notorious for breaking and also the cheapest part to replace.

Ian
June 2010

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