Jerry
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My 19 year old boiler had been getting very noisy over the last couple of years. This year it seemed to have eventually given up the ghost when the overheat stat stated to pop out regularly and I could only run the boiler on a very low thermostat setting. So I bit the bullet and had a new Worcester Bosch Grenstar 24Ri condensing boiler fitted by a Worcester approved installer.
The new boiler doesn't appear to be working properly (or perhaps it's something else). It runs for a couple of minutes then goes to lock-out (I think - flashing blue indicator light) for about three minutes and then goes through the whole sequence again. Nothing is getting very hot (water & heating) apart from the flow pipe from the boiler during the time the boiler is apparenetly firing.
In an effort to try and solve the problem myself during Christmas, I've installed a new 6M head (WILO Gold 60) pump, though I didn't think there was anything wrong with the WILO GOLD 50 I replaced. However, it's made no difference. I'll be getting the installer back in the new year, but in the meantime, any ideas anybody?
If it's of any help, I have an S-Plan system with 3 zones (hot water, upstairs heating and downstairs heating) and 11 rad's. During the 19 years since I originally installed the whole heating system, the house has been extended with additional rad's fitted on each occasion and the boiler has been relocated once. However, after all of that, the old one still worked until relatively recently.
Jerry
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