well.....i went to an icos on yesterday which had blown the fuse on the pcb and it did it twice more on me so disconnected all the wiring to bar the the 2 x four pin harnesess's as instructed by ideal tec just to check to see if pcb was at fault...switched it back on again and boom!! so off i trundled to the merchants to get a replacement pcb,returned and fitted it...up and running...loverly jubberly..or so i thought.
had a call this morning and same problem occurred but this time it had tripped the fuse on the board as well.....not another pcb i thought!!! so i repeated the same test and the same thing happened pointing to faulty pcb, checked fan and gas valve for resistance whilst on phone to ideal tech and all was fine with the readings so went and exchanged pcb and fitted it....switched it on and the display lit with the right code for placement of pins followed by error code "eh"
back on the phone i got and got advised to check harnesses's for continuity where i found a problem with buzzer sounding when i tested the neutral by fan....and on red,black and blue wire by pcb.
obviously this is where the fault was....went to remove the harness and out of curiosity i took the fan out and lifted the lid on the heat exchanger to find the back flange on the combustion chamber where it creates a seal with the lid looked like it had melted away there fore melting the wires in the fan harness together!!!
needless to say a new boiler is going in....was a great learning experience for me and something to look out for when yer out and about and come across a similar fault on the same ****ty boiler!!
just thought i'd share that and wondered if anyone else has had the same problem??
had a call this morning and same problem occurred but this time it had tripped the fuse on the board as well.....not another pcb i thought!!! so i repeated the same test and the same thing happened pointing to faulty pcb, checked fan and gas valve for resistance whilst on phone to ideal tech and all was fine with the readings so went and exchanged pcb and fitted it....switched it on and the display lit with the right code for placement of pins followed by error code "eh"
back on the phone i got and got advised to check harnesses's for continuity where i found a problem with buzzer sounding when i tested the neutral by fan....and on red,black and blue wire by pcb.
obviously this is where the fault was....went to remove the harness and out of curiosity i took the fan out and lifted the lid on the heat exchanger to find the back flange on the combustion chamber where it creates a seal with the lid looked like it had melted away there fore melting the wires in the fan harness together!!!
needless to say a new boiler is going in....was a great learning experience for me and something to look out for when yer out and about and come across a similar fault on the same ****ty boiler!!
just thought i'd share that and wondered if anyone else has had the same problem??