Just spent £300 on a repair for a HW fault on my Performa 24HE combi. The problem still persists, although it seemed OK until the engineer left. Diaphragm and heat exch. replaced.
This is a follow-on from a post about this fault I made a few days ago. If I give the symptoms, can someone give me some idea of the fault?
The symptoms are;
With boiler control on hw only, I run the hw tap for approx 5 mins. The water is hot to start, then cools a bit, then starts running cold. When it runs cold, the flame failure flashes, and burner on light extinguishes. The flame failure light keeps flashing for a while, then the boiler tries to start, and the burner on light comes in for a few seconds, before going out again and the flame failure light starts flasing again.
This boiler keeps going like this then, flame failure flashing for a minute or two, boiler tries to start, then back to flame failure, whilst no hw during this.
I then turned the control to hw and ch, but the flame failure just keeps flashing. If I reset the boiler, then turn knob back to hw and ch, then the ch comes on and the hot taps work for a while.
This problem, which my engineer seems to be running out of ideas for is driving me nuts.
Any ideas gratefully received.
This is a follow-on from a post about this fault I made a few days ago. If I give the symptoms, can someone give me some idea of the fault?
The symptoms are;
With boiler control on hw only, I run the hw tap for approx 5 mins. The water is hot to start, then cools a bit, then starts running cold. When it runs cold, the flame failure flashes, and burner on light extinguishes. The flame failure light keeps flashing for a while, then the boiler tries to start, and the burner on light comes in for a few seconds, before going out again and the flame failure light starts flasing again.
This boiler keeps going like this then, flame failure flashing for a minute or two, boiler tries to start, then back to flame failure, whilst no hw during this.
I then turned the control to hw and ch, but the flame failure just keeps flashing. If I reset the boiler, then turn knob back to hw and ch, then the ch comes on and the hot taps work for a while.
This problem, which my engineer seems to be running out of ideas for is driving me nuts.
Any ideas gratefully received.