baxi 105 he fault

[desrob]

flame failure, condensate blocked 30 fault light comes on,pump runs fan runs one click,then back to fault light,the hot water was working until i worked my magic and that stopped working aswell the hot water indication light does not even come on when taps running

 

[andyg0507]

did you check aps?

 

[desrob]

did you check aps?

yes,,,,,,!

 

[andyg0507]

yes,,,,,,!

only asking,,,,,,,!!!!!

 

[desrob]

only asking,,,,,,,!!!!!

yes was to short had to add some dots and dashes, try writing yes you'll understand, nothing in it,paronoid springs to mind

 

[gasmanrob]

check for pump proving swithch if the spindle is lifting just enough then dropping out might be worth removing the secondary heat exchanger and giving at clean had one about a week ago. no sludge in the system no scale but the ally in the secondary had collapsed and was causing a restriction. mind you before you go doing that may also be worth checking the digaphram first as this is alot easier and cheaper not to mention more common.
as for hot water light just check the pressure differential hasnt ruptured.

 

[andyg0507]

no mate just pulling your leg, only reason i asked was had the same fault the other day, new aps sorted it.

 

[desrob]

check for pump proving swithch if the spindle is lifting just enough then dropping out might be worth removing the secondary heat exchanger and giving at clean had one about a week ago. no sludge in the system no scale but the ally in the secondary had collapsed and was causing a restriction. mind you before you go doing that may also be worth checking the digaphram first as this is alot easier and cheaper not to mention more common.
as for hot water light just check the pressure differential hasnt ruptured.

were's pump proving switch

 

[gasmanrob]

there should be two switchs inside you want the switch mounted on top of the manifold just infront of the plate heat exchanger. gasman is who you should be asking he will know these like the back of his hand

 

[desrob]

there should be two switchs inside you want the switch mounted on top of the manifold just infront of the plate heat exchanger. gasman is who you should be asking he will know these like the back of his hand

the pressure diff on top of diverter valve are making contact with micro switch but not doing anything

 

[desrob]

no mate just pulling your leg, only reason i asked was had the same fault the other day, new aps sorted it.

aps is ok, got a feeling it.s the p.c.b

 

[gasmanrob]

there are 2 one for dhw and the other a pump proving have you checked both are holding on once made? and also dropping back when finished as i belive the if the pump proving dosent return after it wont work next time round

 

[gasmanrob]

you say condence blocked have you dried out the trap where the earth lead sits on top? tru removing the earth lead from the trap and see if it fires then, if it does the top of the trap needs fully drying or in some cases it will need a new trap

 

[desrob]

you say condence blocked have you dried out the trap where the earth lead sits on top? tru removing the earth lead from the trap and see if it fires then, if it does the top of the trap needs fully drying or in some cases it will need a new trap

i wired out trap to eliminate it but still got 30 flame failure fault

 

[Blake]

Sounds like the board has gone to baxi heaven

 

[gasmanrob]

then it seems i am teaching my granny to suck eggs lol. i shall ponder some more and if i come up with any ideas i will be back.

 

[desrob]

then it seems i am teaching my granny to suck eggs lol. i shall ponder some more and if i come up with any ideas i will be back.

not really mate, keep them coming ...