Burner won't stay lit for more than 10 seconds.
Have changed the thermostat but no difference.
Note this is the Myson model with no thermocouple.
Any ideas.
Steve
My Myson / Potterton Homewarmer 55 back boiler has gone potty! (or is it me!!)
The burner only lights for 5-6 seconds stops for 5-6 seconds then burns again.
Some times it will burn for up to 1 minute with a break of about 30 seconds - this I think is normal.
Rads and Hot water tank...