News1 min ago
Bosch Worchester Greenstar Boiler
11 Answers
Last year I posted a question about my Bosch worchester greenstar boiler going hot cold when running shower . I changed thermostatic mixer but made no difference.. Once the colder weather came in and heating went on it seemed to have cured it self. But now the weather has warmed up and heating off shower is going hot and cold again so I'm hoping someone has some thoughts on what's going on .
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