Russell B
Our Vitodens 100 was properly installed and regularly serviced and worked fine at first. After a few years we find the heat exchanger and rubber pipe bungs up with debris each year, stops proper heating of water and results in error F2. It has to be dismantled and cleaned out every year. This is costly and we are often without full hot water. I understand this is probably a design fault and is rather common. Please publish if you have the same problem.
5 years ago
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