Slowlycatchymonkey Posted February 15, 2021 Posted February 15, 2021 Replaced thermostat and no joy. About to replace timing programmer (same one a pretty basic ‘Iflo’ which has been rebranded as drayton) so if this fails what next? Im inclined to assume after these two things have been replaced it’s the the boiler and likely beyond me but you never know one of you lot might say “Ah check it’s not a sticky switch on the blah blah” Crikey this months been ridiculously expensive and now very bloody hot Quote
husoi Posted February 15, 2021 Posted February 15, 2021 Is that a room thermostat or the boiler one? Quote
Slowlycatchymonkey Posted February 15, 2021 Author Posted February 15, 2021 The room stat was definitely broken but replacing it has mad no difference. The boiler was on the lowest setting and is still chomping it’s way through enough LPG to heat a mansion. Quote
husoi Posted February 15, 2021 Posted February 15, 2021 Sounds like the 3 way valve. get a sledge hammer and start tapping 1 Quote
manxie49 Posted February 15, 2021 Posted February 15, 2021 Not sure how old your boiler is but we had a similar issue a couple of years ago, it was a dodgy diverter valve ..... Don't ask me what it does I'm not a plumber but it took him about twenty minutes to replace, wasn't a massive job, cost about £50 odd quid from what I remember? 1 Quote
Slowlycatchymonkey Posted February 15, 2021 Author Posted February 15, 2021 Hmm I feared the word valve would appear at some point! Quote
husoi Posted February 15, 2021 Posted February 15, 2021 The valve @manxie49 says is the 3 way valve. What it does is to manage the water flow for heating and/or hot water. It could be simply blocked with limescale and in need of a good clean up. Depending on the system age it could be filled with silt (black sludge) and blocked. Worth to drain the whole thing and refill adding a cleaning agent, you can get it from toolstation or screwfix. Then drain it again and fill with some corrosion prevention additive. There are some plumbers that will do a system clean but that will cost you around £500 and you will be at his/her mercy. Quote
Bender Posted February 15, 2021 Posted February 15, 2021 What boiler you got? Is it a boiler, a system boiler pump and valve built into boiler or is it a combi? , if it's just a boiler it may have one or 2 valves depending on how it's done. If valve motor is fooked you can get just the head, either 2 port or three. There is a lever you can shunt to manually move the valve. Do you have hot water? Quote
Slowlycatchymonkey Posted February 15, 2021 Author Posted February 15, 2021 It’s definitely not a combi. Is an oil fired Worcester Bosch boiler jobby. Have always used the immersion for hot water cos LPG not cheap. Quote
Bender Posted February 15, 2021 Posted February 15, 2021 It can't be an oil fired lpg It's oil I'm out although it looks just like a plain old boiler. Try triggering port valve manually, it's either that or the wiring to room stat is wrong could be faulty temp sensor on boiler. Top half of pic is layout for 3 port. Quote
Bender Posted February 15, 2021 Posted February 15, 2021 Usually though the way the wiring for the port valve works if it dosen't switch over it dosen't complete the circuit for the one it fails on, so if it don't switch to water you get no hot water, if it sticks on water you get no heating. Quote
Slowlycatchymonkey Posted February 15, 2021 Author Posted February 15, 2021 Oops getting mi fuels mixed up LPG was the old house Pretty certain the wirings good. Faulty temp sensor sounds like it’s a contender. The plumber just rang back he’s certain it’s the motorised valve?! 1 Quote
Bender Posted February 15, 2021 Posted February 15, 2021 6 minutes ago, Slowlycatchymonkey said: Oops getting mi fuels mixed up LPG was the old house Pretty certain the wirings good. Faulty temp sensor sounds like it’s a contender. The plumber just rang back he’s certain it’s the motorised valve?! It's the most common fail point Quote
Slowlycatchymonkey Posted February 15, 2021 Author Posted February 15, 2021 The motorised valve or the temp sensor? Not that it much matters, electrical stuff I don’t mind but anything with more explosive tendencies I’m happy to hand over to someone else. 1 Quote
Bender Posted February 15, 2021 Posted February 15, 2021 Oil is safe on the explosion front, if you want a big bang you need gas or a lightening strike to a water storage cylinder, that will take out half the house, don't use copper for overflow pipe Quote
Bender Posted February 15, 2021 Posted February 15, 2021 I'm sure your getting the idea These are just explosions caused by blocked off pressure relief valves. Lightening vaporises the entire tank in an instant, there was one in Blyth years ago, took the end of the house out. Quote
Mississippi Bullfrog Posted February 15, 2021 Posted February 15, 2021 15 minutes ago, Bender said: I'm sure your getting the idea These are just explosions caused by blocked off pressure relief valves. Lightening vaporises the entire tank in an instant, there was one in Blyth years ago, took the end of the house out. We had one of those in our last house. The guy who installed it showed me that video. It did work very well though. Quote
Bender Posted February 15, 2021 Posted February 15, 2021 1 minute ago, Mississippi Bullfrog said: We had one of those in our last house. The guy who installed it showed me that video. It did work very well though. They are great,it's when people blank off the pipe cause it keeps dripping Quote
Stu Posted February 15, 2021 Posted February 15, 2021 Something that seems to have been missed Have you wire the stat correctly? if not that can make it stay on! Quote
Slowlycatchymonkey Posted February 15, 2021 Author Posted February 15, 2021 21 minutes ago, Stu said: Something that seems to have been missed Have you wire the stat correctly? if not that can make it stay on! That bit I’m certain about. Electrics I can manage.. to an extent... if it’s obvious.. almost full proof.. which it was The downside- I’ve exhausted the things I’m confident doing and will have to pay the plumber to fix it but on the upside I got to go out in my bike in the sunshine to pick up first the thermostat and then back out for the heating programmer, bit of an expensive ride but I’m getting used to spending money on parts I don’t need 1 Quote
Stu Posted February 15, 2021 Posted February 15, 2021 12 minutes ago, Slowlycatchymonkey said: That bit I’m certain about. Electrics I can manage.. to an extent... if it’s obvious.. almost full proof.. which it was The downside- I’ve exhausted the things I’m confident doing and will have to pay the plumber to fix it but on the upside I got to go out in my bike in the sunshine to pick up first the thermostat and then back out for the heating programmer, bit of an expensive ride but I’m getting used to spending money on parts I don’t need Just thought I would check Quote
Slowlycatchymonkey Posted February 15, 2021 Author Posted February 15, 2021 2 minutes ago, Stu said: Just thought I would check Always best to check. So I did and it’s dandy. 1 Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.