Baxi bahama 100 - Flame Failure.

[saedwards]

Got a problem with a Baxi Bahama 100.

In DWH mode or CH mode, boiler locks out and needs resetting. Quite random when the boiler does this, but this does happen often.

Also, once every few weeks the boiler will not fire-up. The burner neon is dimly lit and sounds like the fan is running, but no flame. This rights itself if you leave it for a few hours

Hope someone can help,
Cheers,
Scott

 

[baxpoti]

Gas valve needs setting up, or more likely replacing.

 

[saedwards]

Gas pressure setting are fine!

Note that the main problem is with the DHW. Flame failure will occur immediately after a tap is switched on. Tap needs to be switched off and boiler reset. The boiler will then give hot water, but flame failure will occur again at random.

So ----> 1. turn on tap, boiler fires up, hot water comes out of tap 2. turn off tap

Then at a random point in the day

3. turn on tap 4. boiler immediately locks out after switching on tap 5. no hot water 6. boiler needs to be reset

Puzzling me this one

Hope that is clear,

 

[baxpoti]

Gas pressure setting are fine!

So, what are they?

 

[saedwards]

max DHW 13.5
min DHW 3mb

CH max 8.5

 

[BingoBongo]

does the hw get "mad" hot?

 

[saedwards]

no, water reaches correct temp and gas is regulated when flowrate reduced.