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Sorted the problem - there was dust on the electrode and spark point. Had to clean both in the end. Should have thought of that... He turned the valve round also. The end (for a while... as I think the board is not producing the spark it once was)

Tony, Thanks. I am pretty sure that it is plumbed in the wrong way round because: a: The pump also has an arrow pointing up towards the boiler and now so is the valve whereas previously the valve arrow was pointing down. I doubt all the 22mm pipes head towards the boiler as they must fit...

Well it has been a good 18 months since this issue and I had a problem with my zone valve. I got a plumber in to have a look and he replaced the valve but put it in the opposite way round to previously. After a minute of operation he left and when I tested it again, it had stopped working. There...

Hi - I have an old baxi and it was running fine until I bled the radiators when a few days later it started squealing when switched on from cold. I suppose it is a scaling problem - lots of gas seems to accumulate so perhaps it needs more inhibitor in the tank? Regards, James

A theory: All these old Baxi boilers have this fault with an insufficient resistor that eventually wears out and many people pay for new or re-conditioned control boards that you see for sale on eBay etc. These recon control boards look the same except for this resistor which has been moved and...

Changed resistor for a slightly higher watt value ie 2 watt (probably). System has restarted and all seems fine. If it keeps going that is pretty good for a 25p resistor and a trip to town. Fingers Crossed but all seems well :lol:

If the resistor has blown then its because something else has failed and created an overload. Our thoughts also - the question is what... Thats a PCB we dont keep in stock so I cannot look and see the value and I dont have the interconnection chart to see what it does as a pointer to what...

My boiler has stopped working! The pump runs and the system clicks but no spark/ignition. The Light for cover number one is on and number two is flashing. I checked the PCB and there is a blown 3 watt resistor in the corner called R10. Unfortunately, it is all black and I can't see the...