Great video, although I like many others do installs as well as boiler repairs it is still beneficial especially for those who only do installs to set up the boiler to optimal efficiency.
I always think a good visual demonstration is worth a lot more than reading about it . If increasing the fan overrun time dries out the bearing plate why is it not set to this as a factory default?.keep up the good work .
After finishing the adjustments with the chimney sweep function button, do you press the service menu key once or hold for 10 seconds to get out of that menu? Thanks
We have a 30 CDI but we were told on installation that the right hand side rotary control is redundant! This video shows it in use? So, is there a component missing in my boiler?
@@stevelambert6689 So when I asked for the original quotation for this boiler, should I have been told at that stage that that component is not installed and is regarded as an extra and priced accordingly. If so, I would have had that component included within the quotation. So can that component be installed now?
Helpful video but no link to the manual. Searching the Worcester web site I can only find the service manual which doesn't cover the service menus. Can anyone point in the right direction?
Hi Allan, I have just purchased a house and it has a Greenstar 42CDi Combi, it does not have any sort of timers for the central heating to turn on/off. Do you/or anyone in the comments section know how to set this up? Thanks
Brilliant Allen, thank you very much. I checked my WB 30 CDi combi range and it was 98%!! When I calculated my rads in use it came to 12kW, so with heating being 24kW I changed it down to 50%, seem fine so far. I will check usage over coming days. What sort of % energy savings can I expect going from 98% down to 50%?Is there a way of calculating it. Thanks again Allen.
I’m still confused about having my heating on. If I would like my house to be set at 18°c how should I do that… I’m not really understanding 60 kW that makes any sense… 😢
We've just had a smart meter fitted and the engineer switched the boiler off. Now the boiler (34CDI Classic) is running pre heat. I've downloaded the manual and read the instructions to deactive it but it doesn't seem to work. It says hold holiday button down but there's no response. No faults showing, just non responsive holiday and eco button
@@AllenHart999 yes thanks, I couldn't see the green light on the eco button as it's very dim. The Mrs pressed it once and came on, she's shorter than me and could see the LED light that I couldn't 🤦🤦
Hi Allen Great Video - Any chance you know what the minimum flow rate for these boilers should be? Have a 40CDi Classic feeding one mains pressure hot water circuit off a two port valve and then two rad circuits (top and middle floor) each off their own 2port valves and then two underfloor manifolds, off another two 2port valves. All rads (except bathrooms) fitted with TRVS.... But i am struggling getting the boiler/circuit to manage all the pressure combinations and actually stay fired up when circuits are on/almost up to temp... Boiler keeps going up to 75 degrees (setpoint) and overshooting, turning off, pump continues and finally the boiler comes on again before repeating same. Effectively the boiler is not actually on that much :( I think it is related to flow issues so trying to decide what and how many auto bypass valves to fit (but need boiler flow rate to work this out)
Dear Allen I'm a very old commercial heating engineer but have fitted all brands and fuels of domestic postage stamp boilers as well as light commercials in Whitbread pubs 50 mile radius of and including Nottingham etc. I have been looking at and advising a very cleaver electricai designer and his wife our niece, a leak or two on their Worscester CDi 37 combi they have in their loft. It has good access but the system should have a few improvements done by someone qualified, who is very familiar with Worcester Combi's of this type. Please do you know if that boiler has a safety = water low pressure switch that should prevent the sequence , even the pump from rotating in addition to the overheat stat? The pressure gauge on an 8 year old boiler same as usual can stick as this one does so I've advised a new replacement. I said the pressure needs to be known! I managed to turn the plastic top to stop the auto air pressure switch as it was passing again a notorious regular possible fault. I advised due to him being electrical to fit a warning device re the water pressure if it looses pressure an easily seen light or sounder as the boiler is not visible from below. With not being able to see a low water pressure- switch within the boiler Installation instructions, I would think there is not one (shame on Worcester) but it would be most helpful that you may well confirm our thinking that indeed there is the lack of one. Best wishes ( I'm very please I don't now have to sort out these complex hard to work on nightmares of a boiler!) full of plastic components.
After 5b to 120, go to 9d on 2nd level diagnostics. It is the fan speed, turn from 50 to 55 and this also helps to dry the bearing plate. Also, 6d on level 1 diagnostics will show the dhw flow rate.
@@ci-ryder From the service manual: "To enter the second service level enter the first service level and then press the eco button and holiday button simultaneously for 3 seconds."
Hi Allen, I'm just a consumer. Can you tell me please, does the pilot light need to be on all the time (ours isnt) or is it self ignition? Thanks for your support.
@@AllenHart999 I had a watch of your electric check video the other day it was 100% spot on I was I senior break down engineer for scottishpower and they where drilled in to us and was the best learning point in my career 👍
I wonder if anyone can help...our reset button flashes and the number on the display gets very low, so we reset and everything gets back to normal -the number goes up to 60ish ,but then the number keeps dropping again... any ideas anyone?
Hi allen, Is there anyway I can contact Paul? I have a problem with my Bosch CDI Combi boiler. Many people have come and gone but cannot fix it. Thanks
Great tutorial, the only issue as service technician and as a customer it gets very frustrating waiting for parts on on all these new combinations and tankless systems are . Way too many moving parts IMO . Every manufacturer makes these units so it’s kind of a nuisance when you have to wait for tech support , as well .
Nice presentation of combi boiler. I need to put new Worcester 28cdi for 3 bed room and 1 bath room house.Can I have your contact number please. Fakrul from Sheffield thanks
If you use the range rate, does the boiler come down to the same ‘lowest’ rate? Essentially, the boiler will work between a closer band, ie, 6-16kw, rather than 6-30kw.
Great Video Allen. Could you advise so I could try and get maximum efficiency please? 1A = was set 100%, reduced to 70% to reduce max firing and cycling. Circa 17kw on DHW cylinder primary coil and estimated circa 20Kw heating required to house. Say allow 20Kw - 20/30 = 67% allow therefore 70%. 2B = Max CH temp currently set at 88C (factory default), could this be dropped to say 70C to allow cooler to touch rads, less cycling and slightly more efficient? Whilst also maintaining 70C to DHW coil (60C DHW set temp / 65C storage temp) I'm assuming the display temp on the boiler is the flow temp - therefore I'm thinking circa 70C out circa 50-60C return to allow maximum efficiency?
Brilliant video and Voiceover... Now that I understand my boiler I can now sort out what plumbers haven't managed to do. Huge thanks...
That was one of the best instructional videos Ive ever seen
Hi, you've just saved me from buying a new boiler, the overrun 120 seconds for bearing plate condensation has fixed the problem 👍
Really handy info about fan running time and sticking bearing plates, thanks Allen!
Great video once again Allen, i never get bored watching your channel. Thanks to both of you.
Thank you so much
Great video , very helpful to run your system efficiently. Thank You
Brilliant video. Love watching and learning from your videos Allan .
Adriatik qypi this one is thanks to Paul 👍
Great video. Any idea why fan and pump overrun would operate without any demand from hot water or heating. Eco mode on
Great video, although I like many others do installs as well as boiler repairs it is still beneficial especially for those who only do installs to set up the boiler to optimal efficiency.
Great point!
What stops the pump from constantly running
Useful video, thank you. Just wondering how to set the flow rate please?
Quality output from you Alan 👍
Thank you. VDI2035 coming soon
Not keen on Worcester I'm a Baxi man but this video was really helpful for servicing, thanks Allen
Thank You
I always think a good visual demonstration is worth a lot more than reading about it . If increasing the fan overrun time dries out the bearing plate why is it not set to this as a factory default?.keep up the good work .
Thank You
After finishing the adjustments with the chimney sweep function button, do you press the service menu key once or hold for 10 seconds to get out of that menu? Thanks
I would need to check instructions now, i haven’t t seen one for years.
@@AllenHart999 Its fine mate, found the info on another video. Regards.
Does it lower the minimum kw ?
We have a 30 CDI but we were told on installation that the right hand side rotary control is redundant! This video shows it in use? So, is there a component missing in my boiler?
That's because yours is not a combi if it's not in use (i.e. Classic)
@@stevelambert6689 So when I asked for the original quotation for this boiler, should I have been told at that stage that that component is not installed and is regarded as an extra and priced accordingly. If so, I would have had that component included within the quotation. So can that component be installed now?
Great vid, great tips on the Worcester
Keep them coming ALLEN
Thanks 👍
Helpful video but no link to the manual. Searching the Worcester web site I can only find the service manual which doesn't cover the service menus. Can anyone point in the right direction?
If you search for it in google it should come up. Thanks.
They've defo got into you as some of your vids you've hit them hard. Lovely vid al x.
tommy tanswell always honest in all my videos buddy. Thanks for watching 👍
It will help me a lot on Worcester breakdown! Thanks Paul and Allen.
Great to hear!
@@AllenHart999 can't see a link for Worcester Manual as mentioned in the video.
Hi Allan,
I have just purchased a house and it has a Greenstar 42CDi Combi, it does not have any sort of timers for the central heating to turn on/off. Do you/or anyone in the comments section know how to set this up?
Thanks
I’m having issues with a new green star Bosch 150. Showers run hot for 5 minutes then it goes Luke warm then gets hot again any ideas
i don,t know what that is.
Just made the suggested adjustments to my GREENSTAR 30CDi
Hello, I have just changed mine too. Did you see any cost savings? and if so how much % wise. Thanks.
Must you do another Telegan flue anaysis once you finished with the settings changes? I assume range rating is affecting the combustion?
Yes, Always check manufacturer instructions.
Thanks Alan and Paul
Thanks for watching.
Brilliant Allen, thank you very much. I checked my WB 30 CDi combi range and it was 98%!! When I calculated my rads in use it came to 12kW, so with heating being 24kW I changed it down to 50%, seem fine so far. I will check usage over coming days. What sort of % energy savings can I expect going from 98% down to 50%?Is there a way of calculating it. Thanks again Allen.
Thanks Allen and Paul, good info on what can get you perplexed with the codes!!👍👍🍻🥳
Thanks for watching.
Should the green burner light be lit up when the heating is turned on? My turns on when the hot water is running but not when the heating is on.
Where is the section on connecting to the weather compensation BB ports?
Does anyone know....How do I get the pilot light back on? Reset many times and still no pilot light..
They do not have a pilot light.
Hi Alan ive learnt a lot from the videos you post and this one is just as helpful but can i ask what should the setting be on code 1b
Thanks for doing these vids, really interesting and helpful, they are helping me improve my knowledge please keep doing them 👍
Thanks Paul very helpful
Very informative once again. Thank you.
I’m still confused about having my heating on. If I would like my house to be set at 18°c how should I do that… I’m not really understanding 60 kW that makes any sense… 😢
Do you have a room thermostat?
We've just had a smart meter fitted and the engineer switched the boiler off.
Now the boiler (34CDI Classic) is running pre heat. I've downloaded the manual and read the instructions to deactive it but it doesn't seem to work.
It says hold holiday button down but there's no response. No faults showing, just non responsive holiday and eco button
did you sort it? Thanks
@@AllenHart999 yes thanks, I couldn't see the green light on the eco button as it's very dim. The Mrs pressed it once and came on, she's shorter than me and could see the LED light that I couldn't 🤦🤦
Can you range rate a Worcester 24i system boiler ?
Hi Allen
Great Video - Any chance you know what the minimum flow rate for these boilers should be? Have a 40CDi Classic feeding one mains pressure hot water circuit off a two port valve and then two rad circuits (top and middle floor) each off their own 2port valves and then two underfloor manifolds, off another two 2port valves. All rads (except bathrooms) fitted with TRVS....
But i am struggling getting the boiler/circuit to manage all the pressure combinations and actually stay fired up when circuits are on/almost up to temp... Boiler keeps going up to 75 degrees (setpoint) and overshooting, turning off, pump continues and finally the boiler comes on again before repeating same. Effectively the boiler is not actually on that much :(
I think it is related to flow issues so trying to decide what and how many auto bypass valves to fit (but need boiler flow rate to work this out)
Well yet another great video
Thank You
Dear Allen I'm a very old commercial heating engineer but have fitted all brands and fuels of domestic postage stamp boilers as well as light commercials in Whitbread pubs 50 mile radius of and including Nottingham etc.
I have been looking at and advising a very cleaver electricai designer and his wife our niece, a leak or two on their Worscester CDi 37 combi they have in their loft. It has good access but the system should have a few improvements done by someone qualified, who is very familiar with Worcester Combi's of this type.
Please do you know if that boiler has a safety = water low pressure switch that should prevent the sequence , even the pump from rotating in addition to the overheat stat?
The pressure gauge on an 8 year old boiler same as usual can stick as this one does so I've advised a new replacement. I said the pressure needs to be known!
I managed to turn the plastic top to stop the auto air pressure switch as it was passing again a notorious regular possible fault.
I advised due to him being electrical to fit a warning device re the water pressure if it looses pressure an easily seen light or sounder as the boiler is not visible from below.
With not being able to see a low water pressure- switch within the boiler Installation instructions, I would think there is not one (shame on Worcester) but it would be most helpful that you may well confirm our thinking that indeed there is the lack of one. Best wishes
( I'm very please I don't now have to sort out these complex hard to work on nightmares of a boiler!) full of plastic components.
Very useful video, thanks for posting it.
Hi, what are all the other settings for?
Many thanks Allen,for a well informed video
Thank You
thanks a lot Allen
You are very welcome. Big thank you to Paul for doing these videos.
Great video Allen, any chance of paul doing a video of servicing a greenstar i boiler and sharing a few tips.
Check out Geoff Needs Training. Like Allen he does some good videos. But Geoff specifically covers WB
Thank You
Thank you for sharing... Very useful. 👍👍
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Nice one Allen
Thank You
Can you let me know which model of CDi boiler is this ?
i have a junker 30kw but i dont know how to adjustit the functions a1a2...can somone explain which is for what and should be standing on those?
Thank You
Nice one Allen useful video
Helpful mate✔️
Thanks very much for your comment, please consider subscribing to support the channel 🙂
Can I have the link please
Hi I've a Worcester 35cdi I've set the boiler control on no. 4 is that OK or should it be higher for a 3 bed house temp on thermostat is set to 20.5c
Thank You
Great video very helpful thanks.
Glad it was helpful!
After 5b to 120, go to 9d on 2nd level diagnostics. It is the fan speed, turn from 50 to 55 and this also helps to dry the bearing plate.
Also, 6d on level 1 diagnostics will show the dhw flow rate.
Thank You
How do you navigate to the 2nd level diagnostics menu?
@@ci-ryder From the service manual: "To enter the second service level enter the first service level and then press the eco button and holiday button simultaneously for 3 seconds."
Another great video! That info is really useful 😀
Thanks
Please give it a thumbs up if you can ❤️
@@AllenHart999 Done 👍
@@ryandow3954 Thank You
Top video keep them coming it well appreciated
Thanks.
Hi Allen, I'm just a consumer. Can you tell me please, does the pilot light need to be on all the time (ours isnt) or is it self ignition? Thanks for your support.
Brilliant video keep up good work 👍
Thank You.
@@AllenHart999 I had a watch of your electric check video the other day it was 100% spot on I was I senior break down engineer for scottishpower and they where drilled in to us and was the best learning point in my career 👍
I have this
My hot water is not running
How do i get the hot water running again
Thank You
Great videos ,very helpfull thank you
Glad you like them!
Great video how do I turn up water temperature on my worcester cdi classic
is it a combi?
@@AllenHart999 yes it is
@@michaelconstantinides1939 Turn the dial on the front? Thanks.
I have on full temp
@@michaelconstantinides1939 Maybe you have an issue with the boiler such as a blocked plate heat exchanger? Thanks.
Are boilers usually wired on a spurred fuse and is this usually fitted by the plumber?
Plumber normally connects to the spur. Thanks.
How do i setup to have hot water all the time?! It only works sometimes … not sure how was set
If its a combi it should work when you run the tap. Thanks.
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Got it sorted , many thanks !
@@mihaela12s That’s great news. Thanks.
my output for the central heating is 77, will not go above this, going above this well set to back to 29
Thank you. Very informative 👌
So nice of you
How do you turn the boiler on once you have switched it off
Thank You
Great video 👌
Thank You
Thanks Alan great vid, I’ll be downloading that manual
Thank You
Very useful information, thank you.
thankd as always very imformative
Another great video 👍
Thanks for watching.
How do you use the time dial?
Thank You
Thankyou very interesting
Glad you enjoyed it
Really detailed video, thanks again
Thank You
Great stuff.
Thanks it always useful
Thanks.
I wonder if anyone can help...our reset button flashes and the number on the display gets very low, so we reset and everything gets back to normal -the number goes up to 60ish ,but then the number keeps dropping again... any ideas anyone?
It's broke mate
Hi allen,
Is there anyway I can contact Paul? I have a problem with my Bosch CDI Combi boiler. Many people have come and gone but cannot fix it.
Thanks
Not really no. Sorry.
Thanks Paul
Thank you for the information
Thank You
Thanks for this
Great tutorial, the only issue as service technician and as a customer it gets very frustrating waiting for parts on on all these new combinations and tankless systems are . Way too many moving parts IMO . Every manufacturer makes these units so it’s kind of a nuisance when you have to wait for tech support , as well .
Thanks very much for your comment, please consider subscribing to support the channel 🙂
I sure will. Thank you for taking the time out to show us guys in the field .
@@MrJwinne If you are a plumber or gas engineer please consider sending me your videos. Thanks. Whatsapp 07725 692699
How can I join your group training
facebook.com/groups/Gas999
Thank you for information
Thank You
Thanks paul
Thank you
Thank You
Thanks very much for your comment, please consider subscribing to support the channel 🙂
Brilliant thanks
Very nice video.
Nice presentation of combi boiler. I need to put new Worcester 28cdi for 3 bed room and 1 bath room house.Can I have your contact number please.
Fakrul from Sheffield thanks
Thank You
If you use the range rate, does the boiler come down to the same ‘lowest’ rate? Essentially, the boiler will work between a closer band, ie, 6-16kw, rather than 6-30kw.
Allen Hart it will work down to 6kw minimum, the 1A function is your maximum central heating output, lowest range doesn’t change
Why Worcester is so complicated? Who agrees??
Thank You
Why is none of this information in the service manual?
Yes.
Great Video Allen. Could you advise so I could try and get maximum efficiency please?
1A = was set 100%, reduced to 70% to reduce max firing and cycling. Circa 17kw on DHW cylinder primary coil and estimated circa 20Kw heating required to house. Say allow 20Kw - 20/30 = 67% allow therefore 70%.
2B = Max CH temp currently set at 88C (factory default), could this be dropped to say 70C to allow cooler to touch rads, less cycling and slightly more efficient? Whilst also maintaining 70C to DHW coil (60C DHW set temp / 65C storage temp)
I'm assuming the display temp on the boiler is the flow temp - therefore I'm thinking circa 70C out circa 50-60C return to allow maximum efficiency?
Thank You
Top video
Why does Worcester not put a 4inch hole on their templates
That would be too easy.
The manuals are as clear as mud.
Tnx
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Brand new. Model ZWB 42-3A23 S3124.
Thank You
👍
Thank You
👍🏼
Thank You