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BAXI 105E ISSUES ON FIRING UP DHW / CH?

My boiler is problematic - takes sometimes 30mins resetting and resetting because of fame failure light flashing also sometimes combined with fan / flue failure light flashing
ANYONE GOT ANY IDEA'S

PAUL, May 2008

home Fix label Heating label_important Home Heating Systems category Baxidone

I have a similar problem.
The pump runs.
The fan spins up and then down a few times and then i get the flame failure light and the fan/flue error lights.
Clicks from the circuit board.
Any help apreciated.
Thanks
Terry

Terry, November 2009

hate those intermittant faults..!

aps (air pressure switch) when the fan starts it need to make to allow the igniters to spark....

fan/flue faults would lead me in this direction

T, May 2008

T - answers to your questions

(A) Pump run YES
(B) Fan run - YES
(C) What is ASP
(D) I would presume so as boiler does fire up occasionally
(E) As above

Unit fired up 3 times last night without resetting at all when hot water tap turned on. This morning had to reset it again

Paul

PAUL, May 2008

when you keep resetting, does it acutally fire up before flame failure?

a) does the pump run
b) does the fan run
c) does the asp make (single click after fan starts)
d) does the electrode spark (fast clicking noise)
e) does the burner ignite

detail, detail, detail.........

T, May 2008

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