UK Plumbing

Plumbing problems in the UK? Ask a plumber now.

Connect one-on-one with {0} who will answer your question

I hope you can help. I have a Viallant Ecotec Pro28 combi…

Customer Question

Hi, I hope...

Hi, I hope you can help. I have a Viallant Ecotec Pro28 combi boiler and it is not providing full heating to the radiators. The hot water is working fine and the boiler turns on and fires up to give hot water on demand. When the heating is on the boiler is only heating up to about 40C and the radiator as only luke warm. The boiler is not firing up fully to 65-70C. The remote senor and receiver are all working fine?

Contractor's Assistant: How long has this been going on? And how severe is the problem?

For a few days, no error on the digital display on the boiler and the rads are only getting luke warm.

Contractor's Assistant: Do you plan on doing the work yourself?

Contractor's Assistant: Anything else we should know to help you best?

I have someone say it could be the pcb, sensors or the diverter value, but not sure as the boiler is not displaying an error

Submitted: 6 years ago.Category: UK Plumbing

Show Less

Ask Your Own UK Plumbing Question

Answered in 1 day by:

1/17/2017

Plumber: Andrew Smith, Engineer replied 6 years ago

Andrew Smith, Engineer

Category: UK Plumbing

Satisfied Customers: 4,029

Experience: Domestic Gas, Commercial Gas, LPG, Unvented Hot Water, Part P Electrical, Commercial Catering

Verified

Can you confirm the age of the boiler?

Was this answer helpful?

Yes

How JustAnswer works

Describe your issueThe assistant will guide you

Chat 1:1 with a plumberLicensed Experts are available 24/7

100% satisfaction guaranteeGet all the answers you need

Related UK Plumbing Questions

Boiler only fires when HW demanded. DOes not fire when CH

Boiler only fires when HW demanded. DOes not fire when CH demanded. … read more

Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

12,881 satisfied customers

Betacom 24C combi. DHW does not rise above 40C and it keeps

Hi Dan Betacom 24C combi. DHW does not rise above 40C and it keeps on cycling on/off even with a steady flow of water from tap, DHW thermister recently replaced. HW demand is acknowledged by 24C so as… read more

Andrew Smith

Engineer

4,029 satisfied customers

I have a Baxi Combi Platinum HE boiler, and the hot water

Hi, I have a Baxi Combi Platinum HE boiler, and the hot water temperature to the hot taps fluctuates from hot (about 45 seconds) to luke warm (about 15 seconds) and then continues to cycle between hot… read more

Brian

Plumber

596 satisfied customers

I have a ferroli optimaxhe38c combi boiler, the problem is

my name is Paul ****** I have a ferroli optimaxhe38c combi boiler, the problem is with the hot water system, the boiler was put in about 5 years ago and has produced the following so far:- pcb failed … read more

Andrew Smith

Engineer

4,029 satisfied customers

I have a wireless thermostat and my central heating is

I have a wireless thermostat and my central heating is coming on when turned off but not all rads, recently had to get an installation certificate done as selling as didn't have one as new heating sys… read more

Andrew Smith

Engineer

4,029 satisfied customers

I have a Potterton Promax Combi boiler HE28 Plus. The DHW system

I have a Potterton Promax Combi boiler HE28 Plus. The DHW system is running hot and cold. Whem set to max temp the gauge goesup to90c cuts out then drops to 70c, but out of the tap it is only luke war… read more

Andrew Smith

Engineer

4,029 satisfied customers

Hi Rick, I have a recently new Vaillant ecotec combi boiler.

Hi Rick, I have a recently new Vaillant ecotec combi boiler. The problem is upstairs that the rads only heat up halfway and seem to bang a bit. It wakes my daughter when they come on in the morning. A… read more

Andrew Smith

Engineer

4,029 satisfied customers

Hi My Vaillant ecoTec plus 831 R1 combi boiler serves 3

Hi My Vaillant ecoTec plus 831 R1 combi boiler serves 3 demands: a water underfloor heating circuit (in the kitchen), hot water on demand for taps, and the radiator central heating circuit. All three … read more

Andrew Smith

Engineer

4,029 satisfied customers

My Vaillant ecoTEC plus 831 is showing a status code S.30:

My Vaillant ecoTEC plus 831 is showing a status code S.30: No heat demand: controller. We have a thermostat (Drayton Digistat) that's showing a flame symbol, indicating it's on and demanding heat, but… read more

Andrew Smith

Engineer

4,029 satisfied customers

I have a ultracom 30 cxi that runs 9 rads in a bungalow. what

I have a ultracom 30 cxi that runs 9 rads in a bungalow. what is good setting for water and heating as husband buts on 51 and 50 and this for this time of year house never seems warm, but I am not sur… read more

Brian

Plumber

596 satisfied customers

I have a worcester Bosch 30cdi combi boiler. I had to turn

I have a worcester Bosch 30cdi combi boiler. I had to turn the boiler completly off for a couple of hours , when I turned it back on, the heating mode doesnt work. The start sequence begins as normal,… read more

Andrew Smith

Engineer

4,029 satisfied customers

Hi, I have a Baxi 105e combi INSTANT, Ive seen a lot of threads

Hi, I have a Baxi 105e combi INSTANT, I've seen a lot of threads and sites with this problem and not really any solution so here goes. On DHW 10 litres per min only luke warm water had problem for a w… read more

Chamberlain Maintenance

Plumber

324 satisfied customers

i have a vaillant ecomax 824/2e combi which will fire for cen/heating

i have a vaillant ecomax 824/2e combi which will fire for cen/heating but only fire for hot water if the demand for cen/heating is also on. diverter valve has been changed but still the same problem e… read more

canuck the pro

16,025 satisfied customers

Hi I have a BAISA Combi boiler which is about 8 years old.

Hi I have a BAISA Combi boiler which is about 8 years old. the heating works but if it is not on I have no hot water. Someone has said it could be the diverter valve. What could be the problem. Would … read more

Rick Ridley

Retired, well Semi,

30 years on the tools

2,707 satisfied customers

i have a combi boiler, which heats the radiators but only heats

i have a combi boiler, which heats the radiators but only heats the water when the room thermostat is turned up, the radiators have their own stats and so it is possible to turn down the radiators lea… read more

Rick Ridley

Retired, well Semi,

30 years on the tools

2,707 satisfied customers

ferroli optimax he 31c. brand new system will only heat 3 of

ferroli optimax he 31c. brand new system will only heat 3 of 8 rads. boiler on 90c will only burn for 15sec then D2 shows and it cuts out. Why??… read more

Rick Ridley

Retired, well Semi,

30 years on the tools

2,707 satisfied customers

I have a combi boiler boiler which runs for a metered gas supply

I have a combi boiler boiler which runs for a metered gas supply - i dont know the heat output but i know that is has a water flow of 12L/min -its only heating a 2 bedroom apartment. The combi boiler … read more

Andrew Smith

Engineer

4,029 satisfied customers

I have a vaillant turbomax 242e combi boiler, just had the

I have a vaillant turbomax 242e combi boiler, just had the diverter valve replaced by vaillant engineer as no hot water, but heating was ok. Since the valve replacement the heating does not appear to … read more

Rick Ridley

Retired, well Semi,

30 years on the tools

2,707 satisfied customers

Disclaimer: Information in questions answers, and Show Less

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

JustAnswer in the News:

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.
JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.
Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!
AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.
GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.
JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.
EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.
RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Chamberlain Maintenance

Plumber

324 satisfied customers

Qualified Plumber with over 17 years experience in Domestic & Commercial plumbing.

qwasert

Plumber

212 satisfied customers

Condensing and Combi Boilers

Dan_Robinson

Plumber

33 satisfied customers

Owner and Director of Jennings Heating Ltd. Registered to work with Gas and High pressure hot water systems.

Elliott Louis

Plumber

15 satisfied customers

Lead engineer at eogasservice

Brian

Plumber

596 satisfied customers

16 yrs. experience as plumber, including full bathroom and kitchen installations.

bshull17

Architect

2,153 satisfied customers

Licensed Architect- 17 years, L.E.E.D. AP

The Home Smithy

Home Builder

2,085 satisfied customers

#1 Home Improvement Expert 30+ years experience

< Previous | Next >

Show MoreShow Less

Search your question here