worcester 28cdi cutting out

[blooperuk]

my boiler fires up when I turn the tap on ,as soon as I get hot water at the tap it cuts out,no flashing lights,if I turn on the heating only if fires up but then within 30 secs it cuts out again still no flashing lights,have changed the overheat thermostat but still not change any ideas plz

 

[Dan Robinson]

Why did you change the overheat thermostat?

 

[blooperuk]

the service engineer that come out said that's what was causing it to cut out

 

[Dan Robinson]

If the service engineer came out and diagnosed it why did you change it? Surely you should have got him to change it then have a guarantee?

 

[blooperuk]

he is a family friend (registered of course) he ordered the part and I picked it up as he said he would come back and fit it,but he forgot to tell me he was going away on holiday the next day so I fitted it,so now looks like I will have to call bosch Worcester for them to come fix it now

 

[blooperuk]

since I have changed this part I have hot water no problem,just I have no heating it fires up then 30 secs later turns off,there is no over pressure on the gauge anything else I cud check as really cant afford to get bosch out to repair it

 

[blooperuk]

right replaced the pcb as got it of a neighbour who has same boiler and his was being replaced by the council so night before I swapped out my board for his,everything worked fine hot water and heating now after a week I have no hot water or heating I have a green power light if I turn on hot water I get the red light but no flame light same happens when I turn heating on, no flashing lights any ideas thinking its the gas valve now

 

[mcmoby69]

has this boiler been serviced recently?

 

[blooperuk]

gets the annual service every yr

 

[boilerdoktor]

your a right little tinkerbell

not a clue but throw parts left right and centre at your boiler! if i was you i'd probably buy a really good quilt!

seriously your quasithermatink valve has probably gone, time to get a qualified engineer in !