boiler flame keeps dying

[ljgarrett]

i have a gloworm 24ci ,about 9 year old,the problem being is that when you run the hot water it keeps fireing up then 30 secounds later its dies down then goes out,10 secounds later it fires up again ,then just keeps repeating the process time and time again.ive put a new flue on.so is it the flame sensor,pcb board or ? anyhelp would be much appreciate.

 

[Puddle]

why did you put a new flue in?was it ok before

 

[ljgarrett]

ive never seen the boiler running before,so at first i thought it was a flue problem because it didnt look in good shape.

 

[migoplumber]

dont be messing with flue if you shouldnt be!
sounds like the control heat stat on the dhws is faulty, if when you run a bath you can here the water inside the boiler bubble and boil turn down the heat input. might help

 

[ljgarrett]

heat imput is already low,ive checked the gas pressure,and the flue needed changing not fitted correct an incomplete

 

[migoplumber]

didnt mean gas pressure input. the control knob on front of boiler for setting temp of hot water, place that at minimum and see what happens
are you gas safe registered?

 

[Billy Bob Bob]

i have a gloworm 24ci ,about 9 year old,the problem being is that when you run the hot water it keeps fireing up then 30 secounds later its dies down then goes out,10 secounds later it fires up again ,then just keeps repeating the process time and time again.ive put a new flue on.so is it the flame sensor,pcb board or ? anyhelp would be much appreciate.

god you would save a lot of peoples time if you give better information try dealing with tenants all day i think i can read minds!!!!!!!!!!!

 

[newbie1]

either not gas safe registered or you havnt a clue my guess is the first one

 

[stevetheplumber]

sounds like a blocked plate heat exchanger to me

 

[oldplumber]

had one of these recently and it was a hole in the aps pipe, allowing enough suction to fire up the burner then loose presure and shut down the burner only to fire up again shortly thereafter, look for a split or hole in the aps pipes, if you know what an aps is?

 

[newbie1]

ime with steve sounds like blocked /scaled heat exchanger