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Worcester bosch high flow 400 lost pressure put up pressure

Now no heating cant find reset button [is there one]

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There are two small brown reset buttons under the control panel. Take off the white front cover and you will see them.

Posted on Dec 05, 2008

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I have a worcester highflow 400 i have pressure but cannot light it even after following lighting instructions can anyone help ! please !!

rob

Posted on Nov 30, 2009

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Thanks for that mike, it is a worcester bosch combi 24cdi heating and water can stay on for an hour then everything goes off and the red light flashes. it will come straight back on when reset, but then...


Check the pressure reading, should be about 1 bar when system is cold. Various models in the range of 24cdi. If you do not have a manual, go to,
http://www.centralheating.co.uk/Boiler-Manuals/worcester-bosch-boiler-manuals/worcester-bosch-discontinued-boiler-manuals.
Get the manual for your unit, to wards the end of install manual it has a fault finder, Also has a basic 1 in the user manual. Number of flashes how fast the light flashes which one flashing can all mean different, So get the manual and check, Some parts are easy to fix, as long as you do not touch the gas side the rest is plumbing. Come back if needed.

Mar 05, 2013 | Water Heaters

1 Answer

THERE IS NOT IGNITION. IT SPARKES BUT WONT LIGHT.


sounds like your not getting gas...maybe a vapor lock,,,,,,,make sure you are compressing the pilot button all the way.....try to listen and see if you hear gas flowing....

Jan 19, 2013 | Bosch Worcester Spark Electrode...

2 Answers

My worcester bosch 24i junior pressure keeps dropping if i have heating off for an hour i have to top up boiler and reset also when i have heating on the pressure jumps right up to over 4.0bar


When water is heated it expands. To deal with this all boilers are fitted with a small expansion vessel which is like a reservoir which holds the excess water.

This expansion vessel is like a balloon in a metal pot. When the water goes in the metal pot the baloon squashes a bit to make room for the extra volume of water. When it cools the balloon pushes the water back into the heating system.

What has happened is your expansion vessel no longer works. When the water heats up there is nowhere for it to go so the pressure jumps up to 4 bar. The Worcester boiler lets high pressure water escape (most boiler allow this to go through the safety valve at say 3.5 bar).

When the water cools the pressure drops very low as the volume of water contracts.

The problem is your expansion vessel - normally a little red painted metal cylinder inside the boiler.

Dec 22, 2010 | Bosch Water Heaters

1 Answer

Worcester Bosch Highflow 400 Boiler - no hot water or heating


Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Hi, this is Worcester, Bosch Group

Although we don't currently offer live technical support online, our Technical Support department will be able to help. Their number is 0844 892 3366 - they're open 6 days a week and on average answer calls within 20 second. If you want to know more about our Technical Support department visit our website

http://www.worcester-bosch.co.uk/homeowner/customer-service/customer-technical-support

We look forward to helping you

May 13, 2010 | Bosch Water Heaters

1 Answer

I have low pressure on my Worcester Bosch 30si but I can't remember how to fill it up, please can you help?


connect filling loop from cold main too heating flow or return you,ll find teed pressure system by short quick flicks at the valve on the cold supply best of luck

Nov 29, 2009 | Water Heaters

1 Answer

We have a Worcester Bosch Highflow 400 (10 year old) combi boiler. Over the last few weeks when we have put on the heating the boiler kicks in and fires up and the heating comes on (the water comes on fine...


The by pass pipe may be limed up. This apparently causes a reduced flow which will stop the heating side of the thing working. Call out Worcester Bosch engineer. It costs £210 including VAT and most parts and they almost guarantee to get it working.

Nov 06, 2009 | Ruud Matching Split Air Conditioner

1 Answer

Repressurizing my boiler


take your pick from video or text

How to Repressurise a Heating System with an Internal Filling Key ...

? 3:30
https://www.youtube.com/watch?v=zUsBw1ZpiKY
Oct 27, 2010 - Uploaded by Worcester, Bosch Group
This video shows you how to repressurise your heating system using your Greenstar gas boiler's internal ...

Repressurise Worcester boiler - YouTube

? 4:12
https://www.youtube.com/watch?v=K6fH4XfGgxo Nov 10, 2012 - Uploaded by Rory Macfarlane
This video demonstrates how to repressurise a Worcester combi boiler on the.

Product Troubleshooting Videos ' Worcester, Bosch Group

https://www.worcester-bosch.co.uk > Support > Troubleshooting > Videos How to repressurise a heating system with an internal filling key ... how to repressurise your heating system using your Greenstar gas boiler's internal filling key.

How to top your Worcester combi boiler up - Gas Care.

www.gascare-heating.co.uk/topping-pressure-worcester-bosch-combination-boiler/ Aug 4, 2014 - If the needle on the pressure gauge on your boiler has gone into the red or down to zero it means there is little or no pressure left in the heating system and it needs to be topped up ASAP. So here's Gas Care Swansea's guide to refilling your Worcester Bosch combination boiler through the internal filling link.

How do I re-pressurise my Worcester Bosch boiler? - My Plumber

www.my-plumber.co.uk/blog/how-do-i-re-pressurise-my-worcester-bosch-boiler/ Sep 1, 2015 - 6) Check the pressure on the pressure gauge. When it reaches between 1 and 1.5 bar, it is time to turn the white knob back to the right to close the valve. Be very careful not to over-tighten. 7) Turn the filling key to the left until the arrow lines up with the open padlock and remove the key.
Repressurise Worcester boiler

May 12, 2017 | Heating & Cooling

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