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Domestic hot water and heating series: gas hot water boiler, vacuum hot water boiler, vertical atmospheric pressure hot water boiler, electric hot water boiler Factory use, high temperature steam: wns fuel gas steam boiler, szs water tube steam boiler, vertical steam boiler, electric steam boiler

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FANGKUAI is founded in 1998, which is a clean fuel boiler enterprise integrating R&D, manufacturing, sales and service. In the past 20 years of development and innovation, the company has grown into a global enterprise, and its products have been exported to more than 80 countries including Russia, Mongolia and Thailand, and have established long-lasting cooperative relations with local enterprises!

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Vaillant Boilers Problems 8 common problems and their

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Popular products


θrion Gas Fired Steam Boiler


Rated thermal efficiency: 100-104%

Fixed working pressure: ≤1.6MPa

Applicable fuel:natural gas etc.


Gas(oil) Fired Integrated Hot Water Boiler


Rated thermal efficiency:96-98%

Fixed working pressure:≤1.25MPa

Applicable fuel:Natural gas, light oil, etc.


H6 Gas Fired Hot Water Boiler


Rated thermal efficiency: 97.2-106%

Fixed working pressure:0.1MPa

Applicable fuel:Natural gas, etc.


T7 Vacuum Hot Water Boilerr


Rated thermal efficiency:≥105.5%

Fixed working pressure:-0.02MPa

Applicable fuel:Natural gas, etc.


V6 Gas Fired Hot Water Boiler


Rated thermal efficiency:97.2-104.4%

Fixed working pressure:1.0MPa

Applicable fuel:Natural gas, etc.


Electric Steam Boiler

Capacity:0.5-4.0 t/h

Rated thermal efficiency:98%

Fixed working pressure:≤1.25MPa

Applicable fuel:electric energy


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  • Boiler Not Working? Troubleshooting tips | HomeServe

    Nov 18, 2015 · 8. Boiler keeps switching itself off. This common problem could be down to low water pressure, a problem with the thermostat, frozen condensate pipes or an issue with the supply of gas, water, electricity or oil. It could also be due to air in the system or a faulty pump, so replacement parts may be necessary.Get Price

  • Vaillant ecotec plus – no hot water!

    Jan 20, 2022 · For the Vaillant ecoTEC Plus, the pressure level should be between 1.0 and 2.0 bar when the boiler is cold. If the indicator is below 0.8 bar, then that indicates low water pressure. The system then needs to be filled up with water before switching the boiler back on.Get Price

  • Vaillant Boiler Fault Problems And Cures - Gas

    Vaillant Boiler Problems, Service & Repairs. For boiler components to do their job, there needs to be sufficient circulation. However, the most common cause of the F28 fault code showing is going to be a gas supply or air pressure related …Get Price

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    When it comes to boiler repair in London, it's imperative that you choose a professional company that can take care of your boiler problems and repairs. Boilers consist of moving parts and that means that there is always the risk of boiler breakdown in London. However, there are many common boiler problems that can affect … 8 Most Common Boiler Problems with Solutions …Get Price

  • 8 Common Ariston Boiler Problems And How To Fix Them

    Oct 19, 2020 · If you have a problem with your Ariston boiler, this is the guide for you. Take five minutes now to read about the 8 most common problems with Ariston boilers and you could save yourself a ton of money on unnecessary engineers fees. This guide covers the majority of Ariston boiler issues and also offers the best advice on how to fix them.Get Price

  • Vaillant ecoTEC Plus Boiler Review - Boiler Central

    Dec 31, 2020 · Prices and Warranty Of Vaillant Ecotec Plus Boilers. Vaillant offers a very generous 5-year warranty on all of the ecoTEC boilers included in the boiler replacement cost, which can be extended to 7 to 10 years when a Vaillant Advance installer undertakes the installation.Do make sure that you check the requirements of the warranty to ensure it stays …Get Price

  • Vaillant Diverter Valve Replacement Cost Recipes

    Vaillant Diverter Valves also sometimes called 3 way valves or motorised valves are a device commonly fitted internally to Vaillant Combi type boilers and allows water to be diverted between the central heating or hot water, these diverter valves are not always motorized and can use various methods for operating such as a wax capsule or Get Price

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    Common Vaillant Boiler Faults and How to Fix ThemGet Price

  • Boiler Not Responding to Its Thermostat (How To Fix) - iHeat

    Sep 30, 2021 · This could be due to a number of reasons. You can find some of the most common boiler problems and how to fix them in our helpful guide. If your boiler is over fifteen years old, it may be on its last leg and struggling to respond to your thermostat. Unfortunately, this means it is likely time to say goodbye to your old boiler.Get Price

  • Know Your Vaillant Boiler Parts - Vaillant Boiler Repair

    The PCB on Vaillant ecotec boilers is a very common failure point. Expect there is a good chance you will need to replace this part on your boiler at some point if you have one of these models. PCB failure is common on the older models manufactured between 2005 – 2012, as well as models manufactured from 2012 onwards.Get Price

  • Vaillant Boiler Error Codes | Hometree

    Listed below are the most common fault codes that you might see if you have a Vaillant ecoTec Pro boiler installed: Message. Possible cause. F.00 Interruption: Flow sensor. Flow temperature sensor defective or not connected. F.01 Interruption: Return sensor. Return temperature sensor defective or not connected. F.10 Short circuit: Flow sensor.Get Price

  • Vaillant Boiler Problems, Repair Advice & How to Fix

    Nov 27, 2020 · Top 10 Vaillant Boiler Problems 1. Low water pressure. When you see a Vaillant boiler F22 error code this means water pressure is low in the system. A 2. Faulty pressure sensor or pump. Vaillant ecoTEC boilers are known for displaying the F75 code which means the system 3. Failed ignition. Get Price

  • Vaillant Boiler Problems, Repair Advice & How to Fix

    We've put this guide together to highlight some common Vaillant boiler problems and how to resolve them. Some faults will always need an engineer, and if in doubt always contact an engineer, you can get a free boiler repair quote using Boiler …Get Price

  • Boiler PCB Problems & Error Faults Common Q & A

    The time taken to replace a PCB is also around one working day. However, it's worth noting that it's unlikely your boiler repair company will have a spare PCB on their van. They'll need to order it in from a local plumbing and heating merchant (usually, next day delivery). For more boiler problems please click here.Get Price

  • Vaillant Boiler Fault Codes Find Your Vaillant Fault Code

    We have listed the most common Vaillant boiler fault codes below. Though the fault code may point you to a certain part that may be faulty, it can sometimes mean that something else is at fault. The fault codes are only a guide as what to look for.Get Price

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    Jun 15, 2021 · Some of the more common problems and faults that we see Baxi boiler owners report include: Baxi vs Vaillant Boilers. However, Vaillant has fitted their models with a stainless-steel heat exchanger, which does help to increase efficiency. Baxi boilers, meanwhile, still use an aluminium heat exchangerGet Price

  • The benefits of using a Vaillant boiler - Warma UK

    It is common for boiler manufacturers to offer horizontal and vertical flue options. However, if you are fitting your boiler into a tight space, then this might not be enough. With Vaillant's innovative design, they have implemented a rear flue option for their ecoFIT Pure Boiler.Get Price

  • Vaillant Ecotec 831 problems - DIYnot Forums

    Oct 05, 2012 · The cause of your problems are: 1. Bad installation, dirt in the system, inadequate flushing and/or lack of correct inhibitor. 80% of F.75s are related to carp in the boiler as are leaking DV spindles. There are other issues, but lack of correct servicing and dirty systems are top of the small list.Get Price

  • How to set a timer on a Vaillant boiler? - Boiler Work

    Aug 31, 2019 · Vaillant has very well made its place in the international market and emerged as one of the current market leaders of boiler brands in UK. The company falls under the Vaillant Group that works as one of the largest manufacturer companies of heating, cooling and hot water product in Europe, employing up to 13000 people worldwide and generating a turnover of 2.5 …Get Price

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    Vaillant eco TEC 30H. Vaillant eco TEC 30H We had this boiler installed by a gas safe installer on Kefid19 We were told it had a 5 year warranty for piece of mine. This morning the boiler failed, it had a water leak on the diverter valve and trashed the kitchen ceiling apparently this is a common fault on these boilers and in my opinion as a qualified engineer it needs completely re Get Price

  • 10 Common boiler problems - Living by HomeServe

    May 13, 2020 · 10 Common boiler problems. by Tyeish Liburd. 13/05/2020. Below we list some of the most common boiler issues and outline their potential causes. This fault is more common with older boilers, as modern systems are not built with pilot lights and ignite electronically. If the issue with your pilot light persists, it may be worth getting a Get Price

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    Dec 21, 2021 · Here are some common causes of boiler breakdowns and how you can prevent them: Age of Boiler. One common cause of boiler breakdowns is the age of the boiler. If your boiler is more than ten years old, it may be time to consider replacing it. Boilers that are older than this often have problems with their boiler components and can break down easily.Get Price

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    Vaillant ecoCRAFT exclusiv VKK 806/3-E. Of interest is also the line of condensing boilers (ecoTEC system) boilers with increased power, among which there are also models of floor and wall type. Their energy-efficient technology, compared to a traditional turbocharged boiler, reduces gas consumption by 15%.Get Price

  • vaillant s53 fault -

    Feb 02, 2021 · The boiler goes into low fire and waits until there is a permissible difference between flow and return. Its not an actual fault of the boiler. The S part is a status code. I've had this on a badly designed (& fitted) system before and apparently it was quite common on a 428 ecotec plus as they came out the factory set at a 30kW output.Get Price

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    Common Vaillant boiler problems & fixes | Homecure PlumbersGet Price

  • Vaillant UK Reviews | Read Customer Service Reviews of

    Vaillant eco TEC 30H We had this boiler installed by a gas safe installer on Liming19 We were told it had a 5 year warranty for piece of mine. This morning the boiler failed, it had a water leak on the diverter valve and trashed the kitchen ceiling apparently this is a common fault on these boilers and in my opinion as a qualified engineer it Get Price

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    Vaillant boiler Repairs and common Problems. Low system water pressure fault code F.24. Combination and system boilers have a low water pressure sensor installed, this prevents the boiler being damaged if it ever ran 'dry'. Home owners can resolve this issue without an engineer by simply increasing the system pressure using a 'filing loop'.Get Price

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    Vaillant Boilers Problems: 8 common problems and their solutions. It's important to know the problems and effective solutions for the Vaillant boiler. Vaillant boilers (closely related to Saunier Duval boilers) are among the most installed boilers of all time. This is due to their high output, superb performance, low consumption, intelligent and user-friendly interface, and the highest …Get Price

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    Boiler leaks. One of the most common boiler issues is a boiler leak. Leaks can be a nuisance because not only can they cause water damage to a home, but water can also cause electrical components in and around the boiler to malfunction. A leaking boiler can be due to a number of things: Excessive boiler pressure; Corroded pipes or tanks; A faulty ComponentGet Price

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