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Andrew Smith
Andrew Smith, HVAC Technician
Category: HVAC
Satisfied Customers: 3609
Experience:  Heating and Controls engineer
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My Baxi Bermuda with a back boiler has recently developed

Resolved Question:

My Baxi Bermuda with a back boiler has recently developed a fault.After it has been off for a few hours and has cooled down it will fire up immediately when switched on but after one and a half to two minutes it seems to struggle to re-fire and there is a roaring sound like the oldfashioned blowlamp.
I then switch off for a couple of seconds and switch on again and it will refire immediately, but after another two minutes the same thing happens when I have to repeat the same procedure after which it will work perfectly for the rest of the day.
Two days ago this appliance was serviced by a gas engineer but he was unable to diagnose the fault.
Can you help please.
Submitted: 2 years ago.
Category: HVAC
Expert:  Andrew Smith replied 2 years ago.

XXXXX XXXXX :

The roaring is a blow back in the burner

XXXXX XXXXX :

This means there is a small gas leak around the burner and it gets pushed into the burner with the gas/air mixture and lights at the injector

XXXXX XXXXX :

You should get the burner stripped out and resealed to prevent this happening again

Customer: Thank you for your reply.Can you explain why this only happens when the appliance is first switched on, but works ok when it has warmed up
Andrew Smith, HVAC Technician
Category: HVAC
Satisfied Customers: 3609
Experience: Heating and Controls engineer
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