Search results

Just posting to say I installed the Myson pump and all is good! Rad heating is a bit all over the place but hopefully a bit of balancing will sort that out. Put a new valve in aswell so at least I won't have to drain down in future. Thanks again for everyone's advice and sorry for all the...

Ha ha! Just trying to answer all the questions before anyone asks!!! Pump will be changed tonight.

Sorry - one last thing! System had been cleaned with Sludge Remover and flushed (fill and empty, not a 'powerflush' or anything) about 4 times. All upstairs rads were removed and flushed with a hosepipe prior to CH going back on (but after the cleaning and flushing of whole system) So...

Just had a quick look through the plumbing faq and it seems like the cause could be the pump, or possibly an airlock, or possibly balancing? It's a twin pipe system (feed and return are on 2 different pipes) I am going to balance them, but just wanted to get the heating back on as it's...

Thanks for the advice but I forgot to mention that one of the valves is stuck fast on the pump (remembered from last time I removed it) so it'll have to be a drain down and new gate valve. I changed the other one last time the pump was removed. A bloke in work has given me a Myson Unit Five...

Christ those Grundfos pumps aren't cheap are they! Looking at two - there's only a 6 quid difference between them: Grundfos Alpha+ 15-50 Grundfos UPS15-50 I really can't afford anything better as I've just forked out for new rads downstairs. (Not to mention inhibitor and noise reducer -...

Thanks for the replies, When checking the specs of replacement pumps it says Max Head Delivery 4.5m/5m/6m etc. It does not mention pressure or pressure difference. House is a normal 2 storey semi yes, but boiler and pump are below ground floor in cellar. (So it's a 2.5 storey house at...

Hi, I'm going to replace the pump on my CH system as it's died. CH/HW has been off & drained down for over a month while I've replaced some of the rads. Refilled and fired everything up tonight but the pump isn't running. It went about a year ago but after removing it and beating the ****...

Well so far, so good. It's all fitted and the timers are set. They've both kicked in at the appropriate time and my rads are nice and warm so fingers crossed! Thanks again for your help Bster!

The way it's wired at the moment, there are two sets of wires going to L & N. One set is coming from a 13 Amp plug (haven't opened it up to double check) and the other is going down to the boiler along with the wires from 1 & 3. So do I need to make sure the plug has a 3 amp fuse in it or...

Cheers for that. It def says 4 is CH Off btw. So I'd just run 1 --> 4 and 3 --> 3 then, looking at that. And I can just leave 4 (2 on the C21/27) out then as it is now. One way to find out I suppose! Off to TLC tomorrow then. Thanks again

Ok cheers for that I'll give it a go and see how I get on then. As for terminal 4, I'm pretty sure it said CH Off on the panel and I checked the manual for the newer Switchmaster 400 on the net and that said CH Off too. Doesn't really matter I suppose, it isn't wired anyway. Boff

Hi I have a very old SWITCHMASTER 400 timer and I'm looking to replace it with an electronic programmer. It's a 24 hour mechanical timer with an Off/Timed/Constant switch and Water/Heating & Water switch. I want to change it for a 7 day electronic one and also to be able to control the...

Ok thanks - sorry for the big pic forgot to resize it! My mate's calling round later so hopefully he'll get it sorted before I start to smell! Was a bit worried there was some underlying problem that had caused this. Well whenever I'm messing about with wiring I always make sure they're...

I'd just come on here to say it was the switch but looks like you lot beat me to it! I pulled the fuse when I got home from work and opened the switch up, the live on the supply coming in to the switch had burnt bigtime, it had almost burned through to the neutral aswell and melted a bit of...

Thanks for the reply, no offence but I know how to work the shower! It's definitely not running too hot as I've had it running fine for the last 4-5 years. It went again this morning as it happens, but this time it was on Medium. I checked the switch in the airing cupboard and the light was...

Hi I have a Mira Zest 7.5/8.5 kW shower (going off the instruction manual - not sure which one it is sorry, it was already here when I moved in a few years ago.) It had been working fine up until a few months ago but now if I set it to High the water will go cold after about 5-10 mins of use...