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20 November 2022

Vaillant Eco Tec Plus system boiler hot water priority diagrams

This are diagrams for domestic hot hot water priority set up using: – Vaillant system boilers – Vaillant SensoComfort controls with VR 71 wiring ceters – System with hot water cylinder, radiators and UFH  

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08 April 2018

Worcester Bosch Greenstar Junior 28i – blue light flashing, no heating or hot water

Worcester Bosch Greenstar Junior 28i repair. Boiler not working in both hot water and central heating modes. You can hear fan starting but boiler does not ignite. After short while boiler goes into lockout mode and has blue light flashing (mostly off and then on for a short while) – please see video below to […]

19 November 2017

Vaillant Eco Tec Plus 825 no hot water, heating working fine

Vaillant Eco Tec Plus 825 combi boiler, installed around one year ago developed a fault where it would not fire up for hot water. Boiler worked fine in heating mode but would not react to turning hot water on. Below video show the boiler under fault conditions followed by short video of boiler after repair […]

22 August 2017

Worcester Greenstar Classic CDi error code EA

If your Worcester Bosch boiler is showing error code EA in very cold weather it is most likely that your condensation pipe is frozen outside. Pour hot water over the pipe and reset the boiler (Or turn it off and on at the spur switch). If possible put some pipe insulation on condensate pipework. Condensate […]

29 May 2017

Full bathroom renovation step by step with pictures

I have just completed this lovely bathroom renovation in Herne Hill, London, SE24. Scope of work included: demolitions of existing bathroom leveling to walls for tiling plastering and drylining to walls for tiling and decorating repairs and plastering to ceiling leveling to the floor. New sub floor – 21mm moisture resistant chipboard self leveling renovation […]

19 March 2017

Worcester Bosch Greenstar Junior 24i poor hot water pressure

Owner of this Worcester Greenstar Junior 24i complained about very poor hot water flow from taps in his kitchen and bathroom. When I got to site and tested existing flow on this boiler I measured 5 liters a minute in the kitchen and 3-4 liters a minute on bathroom taps. With such a poor water […]

19 March 2017

Ariston E Combi 24 not igniting in the morning – intermittent fault

Owner of this Ariston E Combi 24 described the fault as follows: boiler does not ignite in the morning and requires multiple resets to get it going once boiler starts it seems to be working fine boiler fails to ignite after longer periods of no use When I got to site I noticed that boiler […]

26 February 2017

How to create en suite shower room in a bedroom – sample project

PROJECT: creation of en suite shower room LOCATION: Central London, Waterloo BUDGET: £8,900 TIMESCALE: 3 weeks Urban Plumbers got contracted to create no.3 shower rooms for Airbnb rental property in Central London. This post describes creation of one of those en suite shower rooms including time scales, budget and construction pictures. We started with finding […]

22 January 2017

Vaillant Eco Tec error / fault code F.54 and F.28

If your Vaillant boiler is showing error code F.28 in very cold weather it is most likely that your condensation pipe is frozen outside. Pour hot water over the pipe and reset the boiler (Or turn it off and on at the spur switch). If possible put some pipe insulation on condensate pipework. Condensate pipework […]

09 January 2017

Baxi, Potterton, Main leaking pressure switch / diverter valve

There is a very common fault on a number of Baxi, Potterton and Main combination boilers where a pressure differential switch starts to leak from a spindle that operates a micro switch on hot water demand. Symptoms is a small leak that will usually show as a drip on the left hand side of the […]