Our company have on occasion struggled to obtain parts. Had a few issues with flow switches, S1/S2 sensors, pressure sensors and an ignition lead.
Lots of boilers are European.
Yes chemical/power flush would aid with a clean system.
When I had my boiler replaced, I removed all my rads, took them outside and flushed them through with a hose. Half filling them, giving them a good shake, emptying and repeating until no more black stuff came out. Then I refitted them, added some cleaner to the system, ran it for a week or so with pump on max speed closing off all rads bar one at a time to ensure a good flush through and then drained system several times. Boiler was then replaced and inhibitor plus a magnetic filter was added. Might be worth testing with a magnet on some of the bends to see whether any magnetite has built up.
Yes, basically. It doesn’t always have to be a power flush, it depends on existing system water condition.
Many thanks for that, my rads are pretty sh1t so I was thinking of taking them off to clean them and repaint or buy new.
Many thanks for the advice, I will do all of that when I get the new boiler.Best advice I can give is;
Heating engineer recommended by friends, family or colleagues. Or poss some manufacturers have lists of accredited installers of their products - sometimes giving extended warranties.
Clean system - not just to protect your boiler/investment, but to stop manufacturers wriggling out of warranties due to contamination. (Proper power flush on an old system could take best part of a whole day, give or take - depending on system size.)
Magnetic system filter (Magnaclean).
Corrosion inhibitor additive in system.
Take care of these basics and you're giving yourself the best chance of a reliable boiler/ch system.
