I was trying to sort a F75 problem with Ecotec 831,drained all the system, took front cover off boiler switched off power supply to check the pressure valve.
Did nothing else as i had to rush out, tried to switch power back on and nothing! checked 13 amp fuse, it had blown, replaced it, still nothing.
Internal 2 amp fuse still ok.
Would be SO grateful for any advice, 75 yr old mother getting cold!
13 amp fuse to the boiler?
should be 3 amp
id be surprised if all the electrical components HADNT been fried from the excess current
obviously boiler has had a short circuit
problem is finding the cause
beyond skills of a diyer
you need professional help
manwithnoname
July 2011
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