Recent content by Papageno

Sorry ChrisR, didn't mean to ignore you on your last comment. When I had the pump out I gave it a good flushing out but no sign of the 'dreaded' sludge. I think the root cause was this verdigreed union which I replaced. It is still working fine, apart from this thermosat query but at least I can...

Thanks for that Martyc - have priced a replacement unit and they are about £50 so your suggestion is worth a try - Thanks, Brian

Hi Guys, Thanks for your suggestions and comments. Couldn't get back to you sooner as broadband went down on Sat morning. Now then, update - No blockage in feed pipe but did notice a lot of damp scale and build up on a union on one port of the diverting valve. Decided to drain system down and...

Thanks for that G4Y but am convinced pump is ok as I've had it out -visually it looks new with no signs of sludge or errosion etc - put mains to it for a few moments and impeller works fine. Will search threads for blocked feed as you suggest. thanks.

Hi All, need a bit of help on CH problem if possible. System is a Glow-Worm Space saver 30 boiler, a Grundfos 15/50 Pump, Honeywell room Thermostat (no model number shown) and a Honeywell Sundial Y Plan Mid Pos Diverting valve (V4073A). OK ? Now then, Water heating is fine but when switching on...