No hot water from your boiler? What to look for and how to fix it.
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- Опубліковано 5 вер 2024
- Boiler on, but no hot water? The fix can be easier than you think. Al the plumber takes you through it step by step.
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I swear to god, everytime I have an issue with the heating or hot water, I have a Google search and everytime I see your face I already know I found the answer. You sir are one of the finest of educators and I salute you!
Thank you very much 😊
He is so brilliant isn't he, it's like having your Dad or Grandad there to ask, he explains in a calm and friendly manner .
Had loads of boiler problems recently and been able to fix them all myself without needing to call out a plumber, thanks to people like you taking the time to post useful and straight to the point videos about how to fault find and fix issues. Well done and thank you - yet another problem sorted due to info useful sharing ! :)
No problem Jonny.
How nice it is to have people like you posting easy to follow instructions 5 minutes and problem fixed . Thank you so much
No problem Shaun.
You sir, are a scholar and a gentleman. My hot water stopped working. It is now working. You enabled me to make the Mrs a very happy lady. Now subscribed to your channel. Your instructions are clear and simple. Many thanks.
You are very welcome. Thanks for subscribing.
From a old motor mecanic ( an OLD NO ALL) I UNDERSTOOD YOUR FULL EXPLANATION BUT AT MY AGE NOT PHYSICAL ABLE. THANK YOU .iT GOOD TO KNOW HOW IT ALL WORKS.
You are welcome!
A million thanks for this short and to the point video. My boiler was running with no problems with central heating but had absolutely no hot water. Tried exactly the 3 steps in the video and the last one fixed it! The loft tank very little water and had its controller ball stuck up not allowing water to fill in. I moved it a few times and got the water to fill in. Perhaps time to replace it entirely. Thanks again for your timely help! Best regards.
No problem.
Hot water wasn't heating but heating was working and radiators hot. We have had no hot water for 3 days can't afford a plumber especially at xmas. I can't thank you enough for your brilliant advice, saved me a fortune. It was the lever on one of the two valve boxes you mentioned, it must have been knocked shut accidently. Thanks to you I will have a very merry xmas. Your a genius!!! Thank you so much!!!
No problem Iain, have a good warm Christmas.
dereton33 hi there. we have a back boiler. this seams to be working but we have no hot water or heating. don't seam to have any air in the system. any ideas?
Brilliant turned miy thermo from 60 to 75. Worked a treat .
Thanks so much for taking the time to make this. Previous tenants had left the thermostat down low, problem solved.
Glad it helped
Thanks for taking the time out to make the videos. They're lifesavers!
No problem.
Thanks so much for this video, we have 2 levers on our system and I followed your advice, manually moving them and we now have hot water, thanks again..
No problem 😊
Hello Sir thank you so much, after 3 days with no hot water your video is the only one that has been helpful. I now have hot water because of you. Thank you so much.
You are most welcome
Nice one bud, had nearly given up after trying various things, this was the last ditch attempt and sorted jobs the missus was well happy she gets to have a warm shower 😂
That`s great.
Thankyou, this is so helpful for someone who just moved to the UK and has no idea how these boilers and heating systems work. For us , it was the opposite. We had hot water but the radiators were cold. I tried this method and the radiators heated up in no time
Also would you please advise if we need to switch on both hot water and central heating to get our rooms warm. Do they need to work together?
No they should work independently.
Thanks for you video, turned out small tank on top of cold water one was at fault. Not refilling. Now have hot water no clanging pipes👍
No problem.
About to clean some chicken when I realised my hot water wasn't working. Thanks to you for sorting it out for me. Saved me on some coins!!
No problem 👍
Was the motorized valve on mine.
Really helpful, got hot water now. You the man thanks
No problem Barry.
Fantastic boss. Got hotwater in my house going using your second tip. Thanks
Glad it helped
Lifesaver, you just saved me £60! Thanks so much
No problem.
Thanks very much for this, it helped me figure out it was the motorised valve.
You're welcome!
Thank you so much for the rapid fire. Precise,swift and to the point Thank you very much Sir .
No problem Pat.
Legend... I'd a dodgy switch.. thanks for the advice my friend.
No problem Bob.
Great video and you explained it so clearly. Thank you!!
No problem.
Thanks Al. You saved me 200.
MIne was FE TANK.
This must be a plumbers money machine.
Ha ha you have found us out.
Thanks so much for sharing your knowledge and expertise. Our system dual motorised valves and turning both to manual seems to have done the job thank you !
Glad to help
We had out bathroom remodelled and before that, because the hot water wasn't working for a while, we got a plumber (different one than the company that fitted our new bathroom) to fix it and he replaced the element up the loft. It was only done in March and now we've no hot water again this week (end of October). We have a plumber from the company that put in our bathroom coming tomorrow to fix it. Surely it should have lasted much longer. When I was growing up, we never had a problem with hot water failing.
Yes it should.
brilliant...flicked that switch and now all good
Great.
Thank you !! You just saved me lots of money :-) my automatic valve was the cause of the problem.
No problem Marcus.
It's great that you do this free to help people. Restores my faith in mankind. Heating but not a drop of water from hot tap. Systematically went through your procedures and wiggled the ball cock of the attic cistern. Water flowing now. Hopefully able to have a hot bath soon. Thank you!
No problem.
Have this exact problem with a vented system. Really helpful video. Thanks
No problem.
this worked for me.Many thanks and much appreciated.
You're welcome!
My Vaillant ecotec plus 637 ( 2012 onwards model), shows an egg timer (hour glass) waiting symbol and wont heat water . The hot water tap symbol is not showing on the display but the radiator symbol is. The central heating is working ok. Any idea what might be the problem. Love the video, keep making them. Life savers.
More than likely the 3 way valve or pressure sensor, either way you will need an engineer in to fix it.
@@dereton33 Thanks dereton33. Appreciate the feedback.
Hi I have found your videos very helpful, the way u explain and break it all down, is perfect. I have the problem with not getting any hot water in sny of the taps, but my central heating works. Iv tried everything u said, my thermostat the is in the bathroom was on 60 and I turned it to 70 but didn't hear no sound of it turning on.
Does that mean that the thermostat needs replacing. Pls I would be very great full if u can help me. I lov my boiler has never given us a problem.
It is more than likely the 3 way valve, try putting it into manual mode.
Hi thank u for getting back to me. Iv got 2 of the silver boxes so I tried that aswell by moving it to manual, and still didn't get no response.
@@dereton33 should I try the last thing u suggested on ur video abt the tanks in the attic iv got 2 one of them has cold water with a ball in it like u get in toilet tanks and the other small box is just above it abit higher up never checked that.
Thank you I would never have known about the F and E tank and that was the problem.
No problem Richard.
thanks all worked for me ,the little tank in the loft was empty
No problem.
Good simple advice, nice one Al
Hi, watch all your videos and thank you for all your excellent and clearly presented plumbing advice. Have a strange problem with my hot water indirect cylinder not fully heating up. I've a F&E system, oil boiler, single zone for rads & hot water, no motorised valves, rads all boiling hot, hot water in cylinder had been boiling hot like rads but suddenly only heating up to mid temperature (too cold to shower) and needing boosting by my immersion heater. Boiler flow pipe to cylinder is boiling hot, boiler return pipe from cylinder is cold just as it leaves the cylinder and hot again after (about 8 inches from cylinder exit). Had been working perfectly and now this. Any ideas? Cheers.
A possible blockage in the inner coil of the cylinder.
Good man, saved me from my Mrs tonight!
Ha ha well done Joe.
We have a boiler system and we just changed the aqua stat rely on it. When we went to fire up the system, all is good except that it stays in circulating mode but no heat.
Stat could be wired up wrong so that the pump is in continue mode.
Saved my bacon!!! Thanks pal
No problem.
bloody hell, this video should have more views!
I can't find that valve thing, that you pulled the catch out from... I live in a loft conversion, so it could be anywhere, right?
+zMELTEDz It is normally near the hot tank.
Hi again, I agree I have some form of blockage because when I undo the 28mm coil connection at the hot water tank the flow is very restricted. A friend of mine suggests the blockage cannot be cleared with cleaner, but says I should get a magnet and at the boiler end see if the magnet attaches to the copper pipe, he says a metalised build up and I will have to cut and remove/replace pipe, what are your thoughts on this, as the pipe at the boiler end are very restricted
Bren davies Yes if it is that bad then a renewal of the pipe work will be best.
Can I thank you for an excellent video. I reckon you've saved me about 200 quid 👍
No problem.
Hi again, many thanks for your assistance, I now have hot water intermittently, when I go up and loosen the bottom connection ( 28mm ) to the coil going into tank, hot water is ok , until turned off and I have had to go up and repeat this three times to get hot water, can you please advise, is this excessive air in the system or should I be releasing air from another source ??
I cannot see a 3 way valve any where in the system, I have checked the pipes at the boiler and they are hot, but as I move away they become Luke warm to cold near the tank, I agree some sort of blockage or air must be in the system your thoughts please. Is it possible to have a system with no 3 way valve as mine seems to not have one
Bren davies Yes Bren lots of systems have no 3 or 2 way valves, they rely on gravity to circulate. Fist thing to check is to go into the loft and check your small F and E tank is full, if not wiggle the ballvalve until water starts to flow into the tank, then clear all the air from the radiators, next if it is full, drain the system and add system cleaner run for a couple of days then drain out and add inhibitor, this should clear any blockage of sludge in the system. If after a week you still have no luck then you must have a blockage thats too severe even for the inhibitor to clear, thats when you start getting plumbers estimates.
Thanks for the video. I tried everything but still no hot water. Any other suggestions, or time to get someone in?
Time to call someone. Some times it is the only way if you have tried everything.
Hello, I just came across your video. My ravenheat boiler is working but it turn cold and hot at the same time even if I took the hotness to maximum
Check your pump.
Nice one thanks very much !!!!!
No problem.
Hi!
Great video, you helped me and a lot of more people,thank you!!
I only have one more question.
Is it there any problem if I leave the valve on manually all the time or I need to switch back on auto every time?
Not at all
@@dereton33 thanks!!!
Bit note info Al. I have two separate Honeywell two port valves. With everything off they sit in the middle. I have slowly pushed each forward and they slowly return back to the middle. M
Bit more info I meant. Fat fingers :-)
Hi Mike, sounds as if the motorised valve to the heating circuit is letting by when it is supposed to be off . Have a feel of the pipe just beyond the valve when the hot water is on to feel if it is getting hot, you will know then that the valve is defective. If not then you may heat convection where the upstairs rads grab some of the heat from the hot water circuit. This is a much more tricky problem to solve.Regards,Al.
Hello. Our Boiler is running but there is no hot water or heating working. Ive checked the circulate pump and I have bleed air from it also. It seems like the heat from the boiler to the tank and pump is not reaching. The boiler fire becomes red after a while its switched so we manually switch it off, is the boiler Air locked? Our boiler is fitted in the chimney and the tank and pumps are across the room.
+Samir Jam Hi, having the same issue. Do you have any information on what fixed your system? much appreciated
Thank you for your useful advice.
No problem.
Hi, I have tried all your suggestions, on my gravity fed boiler, cistern still no hot water, radiators are working ok, been up in loft and ensured ballcock is working and overfill tank has water in, I have just recently changed the hot water cistern, can you please advise
Bren davies Sounds as if you have a blockage of sludge on the flow or return from your 3 way valve, if you are sure the valve is working ok. Drain the system add cleaner then run for a week. Drain back down then add inhibitor.
Having issues with a crown boiler system. Water tested hot but keep having reports it stops working. Had 2 professionals go out. One opened valve to radiant heating that was shut off. Then hot water issue started. Replaced some wiring last time that had been ripped out and replaced the straps. $600 but still having issues.. any ideas?
Could be motorised valve to heating rads not working properly,
I have the same problem but the water heats up when the immersion switch is on. Would it still be the problems mentioned?
It wil get hot if the immersion is on, that uses an electric element.
Hello
My hot water is far too hot and I have the same water tank upstairs as this in your video. It's set to 60 but why is it so hot our water?
Try turning the cylinder stat down to 55%.
Hi did the value and got hot water do I need to switch it’s off ? At the value or leave open and get engineer? Thanks great video 👍
Leave it on and get it renewed when you can.
Al,
I have an indirect water heater, a low boy (Vaughn Top Performer). When the power goes out, even after the furnace comes back on the water heater doesn't work. This has happened several times. The plumber comes out and does something fairly quick, and then I have hot water again. I'm not sure if it's a fix with the furnace or the heater, though I suspect it's the furnace, since there's not much to the water heater. Any ideas?
+Jim Borghesani Have not come accross this one before, check for a hidden reset button.
Will this stop the boiler from firing up for the hot water ? Even when you put the water on constant ? I press heating constant hear the boiler fire up but when I do it for water nothing ? Thanks
Yes it will.
Morning sarks! I've got serious fringe issues this morning I'm gonna scream!!!
Hi. Thanks for the informative video Al.
Followed instructions and noticed that the F&E tank was very low so refilled this but still not got any hot water (have got a floor-standing conventional boiler, gravity fed system).
Is there anything else I should check that could cause the problem? Airlock? Can I check valves or ensuring the timer is kicking in the hot water?
Thanks in advance for any help!!
Hi Maverick , I should check the three way valve and switch it to manual and the same if you have two separate zone valves switch the one for hot water over to the manual position .If no luck then you may have a blockage in your flow or return pipe to the hot water tank.
Kind regards,
al.
dereton33 Hi Al. Thanks for the update. I don't seem to have a 3-way switch but managed to work out (thanks to this vid and another one of yours) that I had an airlock in the hot water cylinder. Managed to turn up the central stat on the tank to 80C which then cleared it - all working now.
Thanks for your help, much appreciated!
Can the valve get stuck open? I woke up this morning with my oil boiler locked out so I reset it and it fired up, but I can’t seem to turn the hot water down using the thermostat on the tank, we tend to turn it down at night due to the noise of the system waking us up at night with floor boards creaking. The boiler was serviced yesterday but I don’t think that should have anything to do with it?
The three way valve might be stuck in the hot water position.
It’s not a three one it’s just an inline one and we have another for heating, can they be freed up
Is there any way to check the valve? Would I know if I check to see what pipes are warm? My heating is working but no hot water and also my radiators are red hot even at the lowest setting
Pull the lever to manual if it works then you have a faulty valve.
@@dereton33 mine is not the same just a manual thermostat on it
thank you, really helpful
No problem.
I have traditonal system with boiler only and Emersion. Atleast I can turn emersion on temporarily. I have this probelm too frequently, 3rd body and syncro in 5 years!!, When I changed the 3 way valve body it has always worked again ok. I have changed the syncro motor prior to changing any body but this never resolved the problem with hot water, so as far as I can see the syncro appears always to be ok. I dont check with meters but.... Recently I changed my Thermostat on the side of the emersion heater as in this video thinking it could be a common fault, for a new one and still once again, no hot water. I have also changed again, the electric syncro and still only luke warm water. I am now about to change the 3 way Valve body (which is a much bigger job) again for the third time in 5 years, so hopefully this will do it. Cannot understand why, if it is the main problem, why these 3 ways bodies appear to fail so frequently. I dont have any problems with hot radiator central heating. Thanks for your great videos....perhaps you may have an opinion about my endless 3 way valve failures? One other question, Took Motorized valve off, checked it for turning with power on... it turns slowly but springs (clicks) back and starts again, is this correct?
Yes that sounds normal.
No hot water, heating on, expansion tank as water in, turned thermostat up, only thing I don’t seem to have is a motorised valve. Any ideas
It must be hidden some where. As it is not opening for hot water just heating.
Hi I changed my radiators yesterday I have the same system as you I have a tank in the loft though I have heating but no hot water today we did put a new pump on as well any ideas please
Really appreciate if you could help as it’s my grandparents house they are very old
Try bleeding the pump, then check for air on the flow pipe to the cylinder.
This applies for boiler + indirect water heater tank system too right? I have the same issue, hot water boiler going into water heater tank, but only cold water coming out. Earlier, a new heating zone was added ( added two copper pipes to the system), now only heating part is working.
Zone valves dont you just luv em.
I have the opposite problem i think i have two separate switches the water one is fine but the other im not sure if it working sould i switch it to manual?
Yes give it a try.
@@dereton33 the switch is not moving free when powered on so i put it to Manual and my upstairs radiators are now working. Should i put back to auto before i power off the boiler ? Thanks
Hi Al, I checked my dads tank in loft which has water in it up to ball cock, got heating but got no water coming out the hot taps! Could there be a blockage between tank up in loft and hot water pipes ? Thanks
It is more likely an airlock.
Hi , I’m looking for advice.
My oil Worcester 18-24 green star boiler is coming on to heat the water .
Then when I run the bath the boiler doesn’t come on until the tank is empty.
We’ve changed the flow switch and still the same and now change the electric box and still the same .
Can you please help ? Thanks
Can be a number of things without seeing your layout I cant help you. Best have someone come and have a look at it.
@@dereton33ok thanks for your reply. 👍
I have an unvented oil system and have hot radiators but water is only lukewarm and cannot see a thermostat on my tank at all. All pipework is ground floor nothing in loft
Do you have a motorised valve on the pipework into the cylinder? If so, put it into manual mode. If you do not have one, try turning the radiator valves down.
@@dereton33 I assume yes although don't know where or what it looks like. Also radiators are fine. It is only since I had a plumber in that drained the system that it now does not heat hot tap water properly
@@dereton33 I do and I tried to put it into manual mode but it moves itself back. I have a box near immersion that has high and low symbol on it. could that be a heat control for water?
Thank u i live in apartments & its been 3 time i am showering my 5 month & 4 yo & the hot water runs out ! I gave them a call & was told wait for the morning!
O dear.
Hello when I turn on boiler I get both heat and hot water but if I turn on for hot water only it doesn't heat,
3 way valve gone.
I have a combi boiler, turnd the hot tap on no water let alone hot water??? Any ideas what the problem is???
Faulty tap.
It looks for me that hot water is fully turned off .. where might the switch be?
On the programmer.
Hi thanks for the video, very informative.
I happen to have a Glowworm 40ff, starting this morning the heating comes on but no hot water. I have tried looking for the manual valve that you have suggested, however cannot find one.
Do you by any chance know if there is one with this and if not do you have any other suggestions
Thanks in advance
P
Here is the link for there manual. www.freeboilermanuals.com/assets/pdf/glowworm/micron-40ff.pdf
There will be a three way valve somewhere or two single port ones.
Hi greatly appreciate your video. I had a similar problem with the motorised valve being stuck open for heating. Could only get the boiler to turn off at the mains. No hot water. Replaced the valve and everything worked fine hot water and heating. But now for some reason the hot water won't always get hot / boiler doesn't kick in when I call for hot water even if I manually move the valve over. Can partially dry tanks or air locks prevent the boiler from even starting? Basically it works when it wants to. I've had it fixed a week and managed to get the hot water to work 2 days out of 7. Any help would be appreciated thanks
This could be air but more than likely black sludge, which was probably why your motorised valve burnt out in the first place.
Give your system a good clean out.
Very easy to understand videos! Excellent!.
I have a question though, I've got CH and no HW, the lever on the 3 way doesn't want t to go past half way, how forceful do you have to be to open it up or is this brand new valve dead!? Thankyou
It should not be that hard, you will feel the spring and motor turning as you push it back, if that is not possible then the valve is in need of replacement.
@@dereton33 yep I'm afraid it doesn't want to past half way. I'm a bit annoyed at a new valve becoming useless after just a week!!. Thankyou for your reply
It may be that the paddle in the valve is jammed and so burning the motor out.
@@dereton33 ok thankyou, I've got someone hopefully replace the bloody thing on Thursday, immersion tank it is for next couple of days!
Thank you 😅
No problem 😊
Any advice for this problem with a Combi boiler (Valient) please?
No, you are not allowed to touch them only gas safe engineers can repair them.
Awesome,Just watched this and it worked! Cheers
No problem.
Thank you!! You’re a saviour
No problem Michael.
Hi I have a ideal logic combi 30 heating is fine hot water is weird 1 min it's OK then it's freezing I've had an engineer out charged me 550 to put a diverter valve on and a new vessel oh and a flush worked fine for half a day any help would be appreciated thanks x
Call your engineer back, there is a problem with the new diverter or air stuck in system.
@@dereton33 hi I've finally fixed the problem it was actually in the end the flow turbine 12 quid fix 2 mins to fit so the boiler fixer guy slapped us on bum dragon solutions warrington stay very clear thanks for ur video though m8 helped alot.
Hi fuse box tripped 2 days ago hot water is not coming on, we have heating. Our hot water will come on with gas but not with electricity. We only have one leaver box and switched that on but no hot water via electricity. Any ideas?
If you have an immersion heater then it is blown and needs replacing.
Hi Al. I have a problem which may be related and hoped you could advise. I have a standard system with a copper tank. Heating is off and water comes on twice a day. When water comes on the rads upstairs get hot. This is a new issue. Can you advise on what I should check? Thank you. M
Basically I got a pre pay metre system when it doesn’t have money service light is off when it got money service light goes green I have money on my metre but no hot water and I live in a block of flats 5 floors and my boiler is a an old one what can I do
If it's a combination boiler check the pressure..
Thank you!
You're welcome!
i have a worcester greenstar boiler..heating working but gurgle noise for about 10 or 15 mins when first switched on..not heating the water now but radiators still hot
Air in the system, check the F and E tank in the loft to see if it is full.
dereton33 thank you xxx
Hello, I've drained my radiators for the first time and now my hot water isn't coming, there's no noise coming from the tank when I switch on the hot water, any ideas on what I need to check/do? Thank you so much.
You have air in the system, try bleeding the rads and the pump.
Thank you
Hi. I have a baxi 105. When I turn the tap on i get a flashy red light. Heating works OK. Had 2 GAS people look at it and can't help us!
More than likely the 3 way valve
Thanks Jan for help I really appreciate it. Still chasing air out here and there. Hot water tank not heating up and pipes all around it are stone cold so more than likely it's in there now but upstairs Rad's are heating up but downstairs isn't. I think it's just a matter of keep chasing it .
Any more help would be great. But thanks again Jan . William Belfast
See if you can loosen some pipe nuts around the tank to let the air out.
Hi, so I’m experiencing this problem right now. I have heating but no hot water. On investigating I have 2 motorised Valves. When I pull either of the manual switches over the boiler clicks as if it’s about to start, then straight away stops. I’ve checked the hot water tank thermostat, it was set at 50, I turned it up to 60 but can’t hear any noise from it. Ive also checked the cold water tank in the loft. The water was a little low so held down the ballcock to top it up. All in all I’ve had no luck and any advice you could pass my way would be extremely grateful. Thanks for reading. Hope to hear back..
Also I moved the switch over and locked it into place for manual use but still not getting any hot water
The motorised valve may be locked in the off position no matter what you do to the head motor switch. Renew the whole motor. body and valve.
dereton33 Thanks for replying, I’ve changed the whole motor and it’s working fine now..
Hi Al. Heating is fine. Hot water isn't being called. F&e fine. Thermostat on tank up high. Have taken off valve head to manually switch and no matter which way I turn, the hot water isn't being called. Surely this means it's not a faulty valve? If so, what else could it be? Thanks.
It is more than likely the small micro switch in the 3 way valve. Check by putting a spanner on the brass head of the valve and turning it.
@@dereton33 thanks for the quick reply. I can turn the knob on top of the valve (underneath the head unit when it's removed) quite easily with my fingers. What am I looking for?
Heat should pass into the flow pipe to the hot water cylinder when set in the right direction. Do this test with the hot water switched on. If nothing happens then the paddle inside the valve is broken and you will need a new valve.
@@dereton33 No heat passes to HW tank. In fact, when heating is on (working fine) and I manually call for HW then the whole water flow stops, including to heating. It seems clear then, from your reply, that the valve needs replacing. Many thanks for your help. And thanks for all the videos, I've done lots of repairs myself in the past because of them.
Very good videos sir, just a quick question about the lever on the 3 way, my valve was replaced just over a week ago, there's no HW but CH, the lever on the 3 way doesn't want to go past half way and I'm a bit concerned to force it down in case it breaks. Any further suggestions? Thankyou
I am in desperate need for advise, water is gushing out the vent pipe on my vented electric boiler, is this normal or what can I do? Thank you
Do you have a link to solve this problem or do you think I should get a plumber to look? I paid £250 last time after my tap was dripping, I fear it may cost much more to look at my problem
I would get a plumber straight away. The element thermostat has gone.
dereton33 I will do that, I panicked and was watching nearly all your videos searching for a solution, thank you I will call a plumber,
Thank you 🙏🏽
No problem 😊
Ok I'll try changing it. Thanks for swift response.
Thank you for your videos which really help however I’m struggling to diagnose the lack of hot water and wondered if you had any suggestions. It’s a Honeywell system and originally I had hot water but no heating. I changed the 3-port motorised valve head and after this I had heating but no hot water. Even if I put the valve in the manual position I still get no hot water. Since I’ve tried many things in the hope of sorting it out. I’ve replaced the cylinder thermostat, I’ve changed the wiring unit, I’ve checked the attic and the water tank is full. The only thing I’ve not tried is replacing the whole valve rather than just the head but I’m doubtful this is the actual issue. I’m also not sure power is actually getting to the motorised valve but as I say I’ve replaced both the valve head and the wiring unit. Any suggestions will be really appreciated. Thank you for taking the time to read this. Cheers, Dean
Hi Dean check the wiring is the correct way round in the junction box. If it is ok then change the whole valve.
@@dereton33 thank you for being so kind as to get back with suggestions. Wiring seems to be ok but the boiler doesn’t kick in when the hot water is turned on (in kicks in with the heating). That is with the cylinder thermostat turned up fully. Would you expect that to be a wiring issue as opposed to replacing the valve?
Hi. Wonder if you could help. I have central heating but no hot water. If I turn off the system the three way Drayton valve springs back to hot water position but when I turn it back on the boiler doesn't fire up. If I turn central heating up the valve moves to the central heating position. So you think it's a faulty tank stat? Thanks.
No a faulty 3 way valve.
we have a Gledhill StainlessLite cylinder, hot water is fine, heating is fine but that silver motorised pump is making an awful noise every 5-10 minutes... do you have any ideas whats going on here? Thanks for putting this video up, it helped me find out what that silver box thing was. It sounds like a weird squeal and its driving us nuts.
The 3 way valve motor is wearing out, you will need to replace it.
Ive looked at the black flex but it is only using the brown live, neutral and earth, the other 2 cables have been snipped back. Mine is the 2 way valve... ive had a look on amazon and there is a genuine replacement @£60 cost or there is a universal part @£30 cost, would you personally use the genuine part or are you comfortable going for the cheaper option? Thanks for the help and advice. Whilst waiting for the replacement part, should i continue using the valve or is it ok to switch it to manual and disconnect it for now?
Hi Chris continue using it for now, the genuine part is always best.
thankyou kindly for your help