No central heating? How to free a jammed central heating pump.

[@kryptonitefitness]

Mate I cant thank you enough. The heating in my flat has been so bad for the past couple of winters. That we bought electric heaters to put in the bedrooms . I bleed alll the radiators and noticed that the 2 radiators which I thought was nearest to the boiler downstairs were cold whilst upstairs were warm but still not hot. I just watched the combination of your videos on freeing the Pump after the summer and also balancing the Radiators and this is the hottest the flat has been in almost 5 years. Thank you so much . Absolute legend!!!

[@dereton33]

No problem pleased I have been of some help.

[@seanmullan6028]

8 years later your video is still helping people (me). Thank you!!

[@dereton33]

Glad I could help!

[@Peptunes79]

I have never left a comment on KZbin in my entire life, yet have seen hours upon hours of video here. This video has just kickstarted my heating after I had tried everything else and was seconds away from calling a repair guy out. Thank you so much for posting this - I owe you at least a pint mate!

[@dereton33]

No problem , mines a John Smiths , ha ha.

[@andrewclarke9467]

@@dereton33 Hi, Great video! I am getting 04 error on my Vokera Linea 24.. which is low pressure. So I followed your video and the pump is free so with the central screw removed on the pump I fired up the boiler and the pump spins but only slowly. Does this mean it's knackered .. I am guessing it should be spinning fast.

[@mrcorcelstar]

Guinness for me, John Smith is piss...

[@andrewleete8877]

As a lot of other comments, fantastic. You have just rescued us from a cold house. Really can't thank you enough. I was just about to message the landlord about yet another problem.

[@dereton33]

No problem Andrew.

[@seanosullivan4896]

Thank you. You just saved my heating system. Stove back boiler was nice and hot when I realised the pump wasn't working. Tried what you said and it's working now. Thanks.

[@dereton33]

Excellent!

[@derekstorey5889]

Stopped using heating for years walloped the pump several times with a rubber mallet it worked Thank you!subscribed my bills will go up!!!!!!!

[@dereton33]

Thanks for the sub!

[@samueldelange5193]

Just wanted to say, you're an absolute legend. I'm renovating my house and doing it all myself (almost all), teaching myself everything from KZbin. Your videos have been invaluable. You're a top bloke and I wish you all the best.

[@dereton33]

Thanks for your kind comments Samuel.

[@PaulandJackR52]

@@dereton33 what if the pump is completely jammed,could I try an free it with wd40? Thanks.

[@melvinshaw252]

you are a genius, you have saved me an engineers visit. i pray God bless u multiple times. i definitely will be donating to your channel

[@dereton33]

Wow, thanks. Have a nice Christmas.

[@ChristianCookWriter]

This is the second time one of your videos has helped me sort out a problem. Huge thanks once again. We have heating back working.

[@dereton33]

No problem

[@columjkelly]

Thank you for this video clip. I performed the steps and my heating came back to life. I saved myself money having to call out a professional for what only took 5 minutes to do.

[@Eddiedoherty22]

You Sir are a legend. My local plumber told me my pump was finished and i needed a new one.. 1 happy youtuber cheers pal.

[@dereton33]

Great you saved some money.

[@francisdrumm8472]

Thanks for the prefect video. Wood Stove recirculation pump had seized and buffer tank was getting mighty hot. Cheers

[@dereton33]

Right on

[@Me19172]

Thank you so very much. I had a Grundfos re-circulation pump and was looking at $229 plus removal, and installation and replacement. We recently had a hot water line burst pipe which we had to shut off water through the hot water line to the water heater to get it fixed. After it was fixed, it was taking a long time for the hot water to reach the shower, so I traced it down to the Re circulation pump and followed your directions and it worked like a charm. Thank you!

[@dereton33]

No problem D

[@nb987]

Every October my heating won't work, I've forgotten this tip, google it and find this video again. Thanks so much.

[@dereton33]

Glad it helped!

[@andrewm3961]

Excellent guide and saved me some money. One thing I noticed though was that there was a continuous dribble of water that didn't stop when I opened the nut. It filled at least a half a mug full before I screwed the nut back on.

[@dereton33]

That`s quite normal.

[@peterwade4337]

Absolute legend mate, few weeks before Christmas and payday and you got going

[@dereton33]

No problem.

[@RaymondUSantos]

Thanks so much for posting this video. Fired up the heat for the first time after coming back home from vacation. House was 58°. I could tell the heating system was calling for hot water on that hot water was making its way through the line but everything ended at the circulating pump. I spent about 20 minutes reading on the Internet and finally came across your video. Shut off all the power, opened the pump up, i'm un-jammed it, put it back together like you demonstrated and fired the heating system up. Within a couple of seconds hot water was flowing again and the house started heating up.

[@dereton33]

That`s great Ray.

[@MH-wn6vs]

Just want to say thank you for your video - so perfectly led through to free up my pump (inside combi boiler but exact same method). Even down to O-ring and cloths. A few rotations of the motor got me up and running from my F75 Vaillant error code and save a call-out. I’ll look you up next time I get any errors. I’m definitely back in business and room stat back to 21°C. Thanks again!

[@dereton33]

No problem MH pleased you are back up and running again.

[@catrionahassey3638]

Thank you so much, fixing the pump has completely stopped the knocking sounds from the back boiler on my stove and has saved me having to call out plumber!

[@dereton33]

No problem Catriona.

[@AWDCrazy]

Thank you so so much. Been racking my brain as we have an unconventional heating system and tried everything to get the required pump running, without much luck. Watched your video, followed the instructions and boom, sorted! Thanks again!!!

[@dereton33]

No problem.

[@sy1232008]

Thank you Ray, pump was jammed. Only had to give it a knock with my had and it came back to life.

[@JC-wx7pb]

It works now! Thank you sir. I would have never figured it out if i hadn’t seen this. (Jacob, Czech Republic)

[@dereton33]

No problem Jacob.

[@andytaylor6285]

Thought our narrowboat heating pump was broken. Tried this and it only went and worked! Thanks so much!

[@dereton33]

No problem Andy.

[@getthemusicout3212]

Awesome post. De-Mistifying the black-art of boiler trouble-shooting. Extremely helpful. Many thanks.

[@dereton33]

No problem.

[@bigdaddy8307]

Your advice saved me lots of money a very big think you for putting your video up .

[@dereton33]

No problem big daddy.

[@NattyBoyTV]

You my friend just saved me a lot of money! Thank you for this video!!!

[@dereton33]

Glad I could help!

[@jawad769]

I have a lots of respect for you sir. You are a legend. Thanks for all these tips

[@dereton33]

No Problem Faisal.

[@kyliematthews7805]

Thank you!!! This was exactly what I had to do to sort my heating. Lovely warm radiators now!

[@dereton33]

You're welcome!

[@rickscott858]

Hi Al, helped me out again! Thanks for all your useful information delivered in such a friendly way.

[@dereton33]

Glad to help

[@CasualTimes]

Great video - my central heating pump was jammed, after following these steps it's running fine. Thanks again 👍

[@alexhawkes5355]

Thank you for the video. The banging from my boiler was from the pump and your advise got the system going straight away! 😁

[@dereton33]

No problem Alex.

[@johnmahon759]

Thanks dereton33. 23:30 GMT and just got my heating going again with your good advice.

[@dereton33]

No problem.

[@bendavies1758]

Thanks so much for this! I knew there was something up with the pump on my boiler but had no idea to fix it! Did this and it worked right away. Definitely saved a fair bit of money on the plumber!

[@dereton33]

Have a beer on me, with the money you have saved

[@alanfromenglandcamino7149]

Just did what you said and it freed up my heating pump ,Thank you so much ! great easy simple to follow ,Keep going

[@dereton33]

Thank`s Al.

[@jeando_guitar]

Thanks a lot Doc!, I just bought a new house with a new boiler but it was without use for 10 years. The boiler did not work and I was sure the jammed pump was the problem, but did not known how to solve it.

[@dereton33]

No problem keep warm.

[@barbiesnemesis8841]

Thank you so much for this video. I tried this, and lo and behold, my heating is working again. 'Saved me a ton of squids! I'll be donating to your channel later x

[@dereton33]

Thanks Barbie`s nemesis.

[@robwilsonirl]

Your video just saved me a fortune 👍🏼

[@dereton33]

No problem Rob .

[@Spedley_2142]

Didn't expect it to work, especially given how easily the screw turned but super, thanks!

[@dereton33]

No problem.

[@pnjpjohnson]

Thanks for that - worked well. The Grundfos pump I have didn't have a simple screwdriver slot inside but just tapping the rotor freed it.

[@dereton33]

No problem.

[@tank618]

Nice one👍 - 2 minute fix and we’re indeed back in business. Saved a £100 odd call out fee. Many thanks🍻

[@dereton33]

No problem.

[@nettiebee735]

thank you from a female in her 50s! pump on powermax 155 seized after the summer - tweaked the internal screw with some tweezers and we have heat :)

[@dereton33]

No problem.

[@edwardsandancer]

Worked a treat.Thank you from the bottom of my cold feet.....

[@dereton33]

No problem.

[@elainajames6924]

Thank u x my pump is for under floor heating and floor doesn't seem to be getting hot but it is only on 1st flow, I thought the pump was broken, but thank you for this video I can feel it going round the pump is a bit hot but I have turned it up to next setting for flow, thank you for your help

[@dereton33]

No problem.

[@susano5748]

Thank you! You just saved me £99! Worked just like you said.

[@dereton33]

No problem.

[@heidzsoder199]

bless him! I want to adopt this man

[@dereton33]

Ha ha, I am all yours. Jan would be happy.

[@jbrennan9929]

Thanks very much for this advice. Got the radiators heating upstairs in an old house.

[@dereton33]

No problem.

[@V8BlowerUK]

thank you very much such a simple fix took me five mins to fix saved my mum a couple of hundred quid if she'd have got a plumber out he'd of probably charged her for a new pump knowing nothing wrong with it, your a gent cheers

[@dereton33]

No problem.

[@mrbachittarsingh9243]

chris halliwell not everyone is out there to smash your back doors in 🤓

[@davidwhite4874]

A lot of them are, though.......

[@kirkmonaghan06]

Absolutely brilliant man. Thanks for the tip what a star. Now my wee brass turn screw thing to stop the water flow is too worn to turn in order to stop the water if for when I might need to replace the pump at some. Any tips? 🙂

[@dereton33]

New valve.

[@kirkmonaghan06]

New valve, I honestly don't know what that means, is that what is worn? How can I stop the water if I can't to replace it if I can't turn the screw head to stop the flow. Some kind of plug?

[@lolorick5885]

Grundfos pump jammed up, moved the speed switch back and forth a few times then bang the pump with a small hammer with quick light short blows. Job done

[@dereton33]

The hammer always sorts things out.

[@jaywoods8393]

Thanks for this. I used to hit the pump with a wooden dough roller to get it working. I can do it properly now.

[@dereton33]

Just like hitting the old man over the head when he came home drunk. Ha ha.

[@paddyandrews6269]

Mate,you're a star! Worked a treat, cheers

[@dereton33]

No problem Paddy.

[@fenderashe]

thank you kind Sir,you saved me twice in 2 years first with the screwdriver method, and just now the hammer approach

[@dereton33]

No problem pleased you got it working ok.

[@englishdave9986]

thanks I'll try turning pump down as it's on high setting, I fitted a air pressure switch last week.

[@BigBadBalti]

You sir, are a legend! Thanks so much for sharing this.

[@dereton33]

No problem.

[@paulkane9863]

Thanks. Mine was jammed for some reason. Sounded rough for 10 seconds then back to normal. Cheers.

[@dereton33]

No problem Paul.

[@rosarinaldi1719]

Hi thank you for your prompt reply and also for all your excellent videos.They are an excellent source of info.Could I ask just,one more question please.My pump is connected to a mini max power source along with thermometers on pipes.so if I switch that on (cold no heat source)should there be any sort of noise humming or anything coming from the pump.Or does it need to get up to some sort of temperature before it all starts working.Sorry if this sounds like a silly question but I have no knowledge of this type of heating system and cannot get a heats engineer to come out before Christmas.thanks again in advance Best wishesrosa

[@dereton33]

Depends which way things are wired up if the pump is wired through the stat and only activates at a certain temperture.

[@rebeccafindlay9068]

Thanks for this video, I wonder if you can help, when I take the screw off of my pump, water continuously pours out of it, is there a potential reason for this? My pump is silent but boiling hot when I put my heating on at the moment.

[@dereton33]

No it is quite normal .

[@neilbright5346]

@@dereton33 I'm in same boat can't get to the point of opening the screw fully as its like a pressurised tap shooting water out constantly i.e filled 5 litre bucket and decided to stop. tried closing couple of valves both sides of the pump and still does the same so guessing they're not actually closing any supply off.

[@rosarinaldi1719]

Hi is there anyway to tell if the pump works before firing up heating system.why I'm asking is I have just moved to a place with a multi fuel heating hot water system,just want to check pumps working before firing it up Thanks in advance

[@dereton33]

Only by wiring it directly to the mains.

[@patrickgilmour9826]

Great video my combi boiler heats up really fast gets to temperature then shuts down makes a lot of noise goes cold then kicks in again the pump works for what little hot water there is goes to the radiators any ideas please

[@dereton33]

The three way valve.

[@worcesterexchange554]

Just for information, my pump started making some noise that I could tell was in the water rather than the motor. I opened it up - four allen screws - and found some small bits of rubber stuck in the impellor. Probably from a rubber seal that had got damaged somewhere in the system. I cleaned it all out nicely and replaced it being careful of the large rubber o ring. So far it is still working fine (touch wood).

[@dereton33]

Thanks for the info.

[@vicwilton9855]

Hi,I have a grundfos type ups 15 -50 x 18 central heating pump,what does the numbers mean that I have just quoted? My pump has died ,can I use a similar pump with a different number thanks 👍

[@dereton33]

Don`t worry about the numbers just get another pump the model numbers have changed now.

[@hcashmore11]

HI Alan, We've got a Kerosene Boiler (oil boiler) HRM Wallstar - it turns on and after about 3 mins turns back off again, it heats the water a small amount - radiators upstairs feel lukewarm and downstairs are still freezing cold, tried bleeding radiators, adjusting oil pressure, checking oil level (more than plenty) no lock out, every hour or so it turns on for between 2 and 5 mins - same with hot water, very lukewarm and not useable. Thanks

[@dereton33]

Have replied using e-mail.

[@troysfunm4744]

Hi Derek thanks for your helpful videos. I have the same problem with my kerosene boiler.

[@garston1972]

These videos are fantastic, this is the 2nd one i have used to try and fix my heating. Someone might be able to help, we are running radiators off a stove and the pump wasnt working at all. Got in and their is a green light on it now (it is a grundfos). However it only seems to let me set the thermostat that is attached to the pump at a very low temperature so in effect it is pumping cold or lukewarm water around the radiators. If i set it any higher than 25 degrees it never kicks in. It is an old dial thermostat btw

[@dereton33]

I would say it is the thermostat. If the pump was broken it would not work whether cold or hot.

[@garston1972]

@@dereton33 thank you very much, it is the old style copper backed one. Just as a follow up a pipe burst last night so fun and games lol. Happy Christmas, your videos are so useful.

[@denniscronin1112]

Hi do you have to ensure the heating is off before you undo the screw on the heating pump?

[@dereton33]

Yes.

[@kathywells3031]

My hot water comes on, but heating doesn’t. We have replaced Thermostat and receiver with Hive system. But we had the problem prior to this. We have also changed the 3 way valve. The original problem is still there. The hot water will come on via timer, the Thermostat is calling for the heating to start and light on receiver confirms this. We can manually put the valve to heating. Any suggestions, we have spoken to gas engineers, electricians and plumbers but can’t get any answers.

[@JohnMcGuinnessScotland]

Great video, just found the need to carry this out, thanks.

[@dereton33]

No problem.

[@gps1965]

You're a star! - I got my pump working again in minutes. Many thanks!

[@dereton33]

No problem.

[@robicelus]

Nice info right there. If I may ask a few questions - is it safe to lubricate the circulating pump motor once in a while for a longer life? And also, which is the area where we can add the lube and how often should we be doing it? And one last question, can I use regular oil for lubrication (like bicycle chain oil)? Thanks.

[@dereton33]

There is no way to lubricate the pump it is a sealed unit.

[@robicelus]

+dereton33 Oh, I didn't know that, thanks for clarifying. How about maintenance? Is trapped air the only thing that should be released once in a while or is there something else I can do to maximize the lifespan of the pump?

[@dereton33]

Releasing any trapped air and making sure your heating system is clean with no black sludge.

[@leedh123]

Thank you for this. Worked a treat.

[@dereton33]

You're welcome!

[@montasirnadiem2563]

Thanks a lot the heating of a sudden stopped, I have just followed what you have done, find the pump named, free it, close the system back and put it on it works more than lovely. You are brilliant thanks a lot. Monty

[@dereton33]

+Montasir Nadiem . No problem.

[@carolnugent7527]

Montasir Nadiem thermostats

[@kevinbeck6785]

hi dereton 33 we have problem with wall thermosat we have replaced old one because we have had it on at 30 but when we had it on at 20 it comes on but when rooms cool down it does not come back on having changed it to new one the problem still continues could the fault we have be on the water pump many thanks and keep up good videos

[@dereton33]

Check the pump, but it is more likely to be the 3 way or two way motorised valve

[@kevinbeck6785]

@@dereton33 thanks for your quick reply dereton 33 i will try that !!

[@mrc2021]

Can this approach be taken with an old SMC Commodore 130 pump - it is unclear if I can get access to free the jam?

[@susanmoore9391]

Amazing thank you. Your advice was spot on. Can’t thank you enough 😀

[@dereton33]

No problem Susan.

[@fablan3308]

Do you need to turn the power off to do that Just in case when you put the screwdriver and it starts to spin after you free it

[@dereton33]

Best to.

[@1yellowface]

Excellent video. Thank you 😊

[@dereton33]

You're very welcome!

[@tunnybilly]

Hi dereton what would cause a boiler to produce no hot water at the tap but continue to heat the radiators? Im guessing diverter valve? Its a baxi duo tec 28.

[@dereton33]

Yes the diverter valve.

[@andrewyoxall137]

Just unstuck my pump using this vid as a guide. Cheers !

[@dereton33]

No problem Andy.

[@alanporter2694]

Thanks for sharing your experience. regards. Alan

[@dereton33]

No problem Al.

[@billspectre2229]

Brilliant! Worked a treat thank you!

[@dereton33]

You're welcome!

[@turbomcg1021]

Sorted me right out! Thanks Al.

[@andrewbennett137]

Fantastic video 👍👍👍

[@dereton33]

Thank you 👍

[@HMVideofilms]

I'm freezing, winter is finally coming and I switched the heating on tonight and although I have hot water there is no heating??? I watched this and confident I can do this on my eco-tec plus 824 but need to know do I turn it off first at the wall switch? (seems the sensible thing to do.) is there anything else to watch out for? Thank you.

[@dereton33]

Yes turn of first then follow the video steps.

[@jbaillie01]

if i need drain due to unions buggerd do i have to drain from ground level or can i isalate it somewhere

[@gjmheating8857]

Hello deriton what would be the issue if water constantly comes out of the bleed screw when the screw is off? pump bearing

[@dereton33]

No, there is a small rubber washer on the bleed screw which must have perished. Just wrap some PTFE tape around the thread before replacing it.

[@marcelobravo3533]

Many thanks, it worked just like in the video!

[@dereton33]

You're welcome!

[@clivebraner4812]

Total long shot but I will ask anyway, my potterton precision boiler won't ignite, I have power to boiler and thermostat set at 30 for test purposes, the pump got hot after being on for 15mins. Could a stuck pump be a cause of boiler not working? Thank you.

[@dereton33]

Yes it can be, but also check the 3 way valve.

[@clivebraner4812]

@@dereton33 Thank you for that, gave it a go, but my British Gas Pump didn't have a screw head type thing to spin the pump itself inside, it is a square almost allen key type fitting inside that I'm not able to get anything into it to get it to spin! Thanks again though for your advice I never would have tried it otherwise.

[@1954BJohn]

Thanks Al - as always interesting and informative videos.

[@dereton33]

1954BJohn Thanks John. Al.

[@jamescampbell2835]

Would this work if the boiler was not heating up on schedule? My central will come on if I turn the thermostat (honeywell) to a particular temprature however after it reaches a temprature and switches itself off it will not come back on once the temprature drops. Same if on a timer it will not come back when the scheduled time arrives only if I move the thermostat manually? Water is heating up fine

[@dereton33]

No it would not do it. You have a programmer or thermostat fault.

[@jamescampbell2835]

Thanks... I'll get an engineer called

[@Okamiobidala]

Heating is the bane of my life!!! * *Shakes fist at machinery!* * I’m gonna save this little gem of information for future use 🤗 Thank you - Danielle xoxo

[@dereton33]

No problem.

[@rgershberg]

i have a grundfos ups15 58fc (older, pre flow adjust), with a check valve instead of the screw. Can that be unjammed? i'm guessing i'd have to remove it and take it apart. that also probably means shutting the boiler then bleeding it after reinstall. i want to make sure my pump is servicable before doing all that. much thanks. btw- the motor feels like its on. its vibrating. and i did try the hammer trick with no luck.

[@dereton33]

If it is vibrating, then it is working and not jammed. I would renew the pump as the one you have is a really old model. Don`t waste time messing around with an old worn out pump.

[@lumpyfishgravy]

Worked for me! Cheers - enjoy your pint!

[@dereton33]

Thanks Mike.

[@tlrweb]

Worked a treat - thanks

[@dereton33]

No problem Allen.

[@ernestsdabolins626]

Super ,Thank you very much.

[@dereton33]

Welcome 😊

[@rebeccashapland]

Thank you very much for your helpful video! Your instructions were perfect and our heating now works :D

[@dereton33]

No problem.

[@BenjaminMay-fp1zh]

Great video, worked!

[@dereton33]

No problem.

[@Rureal42]

I have a Baxi combi boiler and my central heating and hot water has gone. Called a plumber who just stared at it and scratched his head. Could a jammed pump cause the hot water to go too?

[@dereton33]

No it sounds more like the three way valve.

[@JasonDunlop247]

Can it still be a pump problem, if the heating is running but just not running as hot as it should?

[@dereton33]

No.

[@JasonDunlop247]

@@dereton33 My rads start off warm then cool down after about 20mins? They just cool way down? Stuck thermostat up high but makes no difference?

[@robinboardman2648]

How long should I wait after the heating has been on to try this? Waited half hour but just a constant stream of water so can't open it up?

[@dereton33]

Do it with the heating off.

[@wadsworth120]

I tried this before and yes it worked. Now my heating has stopped once again but this time the propeller inside the pump is totally stuck. Does this mean a new pump?

[@dereton33]

Yes afraid so.

[@itanamarko]

Can I please ask you something? I called someone to replace my central heating pump. It was grundfos 25-60, but he bought 25-40, a weaker one (I don't know why). My heating is not as it was, it takes more time to heat and one radiator is not working properly. He mixed the tubes also, first time nothing worked. Then he changed that, but still the heating is slow and not good. I fear the problem is the weaker pump, but he s telling me that cannot be a problem. It's a 80 m2 with five radiators. Is it the pump?

[@dereton33]

As you only have 5 rads I would say that pump is ok. The big one you had is for much larger systems. He was trying to save you some money on the pump price. The problem you have is air in the system. O by the way you can turn your pump up to number 3 if you are concerned about it.