![]() Faulty Flow SwitchĪ faulty flow switch is a serious problem as the flow switch ensures that gas is flowing correctly through the pipes in and around your boiler. There is not a lot that can be done here other than replace the PCB or the whole boiler itself, as a faulty Viessmann PCB could be costly to replace.Ī faulty PCB in a Viessmann boiler is a defect that is covered under the boiler warranty, therefore if this is the case you should contact Viessmann to either replace the PCB or the boiler. The printed circuit board or PCB is the boilers brain and tells it what to do and when, therefore if you have a new Viessmann boiler with a faulty PCB will often not work at all. This safety feature will is known as a lockout and your Viessmann boiler won’t start until the faulty fan is fixed.Īs this is a mechanical problem with the boiler it is the fault of the manufacturer to fix and if your boiler is under 10 years old will be covered by the warranty. If the fan is faulty in a Viessmann boiler then it will not work as it is unsafe due to the fact that the fan will not be able to ensure that harmful gasses are removed from your home properly. Here are some of the reasons why a new Viessman boiler may not work: Faulty fan Some of the most common boiler problems include:įrom time to time a new Viessmann boiler may not start up, if this is the case you are covered under the warranty, however, you may want to know why to ensure that you are covered. Fixing it is much better than paying what a new boiler cost. That tiny leak from the radiator will become a bigger issue if not quickly fixed. Some problems, though, start small and get bigger over time, especially with cheap boilers. Whether you have Viessmann Vitodens 200 problems or need help with Viessmann Vitodens 100 troubleshooting, we can help! Then we’ll look at which issues you can fix yourself and which need a visit from a Gas Safe engineer. In this article, we’ll take about which problems are most common. So, while Viessmann boiler problems may not happen often, there will be times when a fault develops that needs attention after the boiler installation This German boiler company has rapidly become one of the best boiler brands in the UK and renowned for reliability. Viessmann recently celebrated one hundred years in business, and they have sales offices in eleven different countries. If you want to know more or if your issue is fixable or common, then read on. If your looking for Viessmann fault codes, skip right to the part of the blog near the bottom for the full list. They even claim on their website that they produce the ‘UK’s most reliable boilers’ so hopefully your Viessmann boiler problems can easily be fixed and rectified Viessmann is well known for the high quality of its heating systems. ![]()
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