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  1. L

    cool radiator

    after getting bypass fitted for new boiler one of the radiators has remained fairly cool i hosed it out but no difference heat at pipe on lockshield but not at pipe connected to thermostatic valve - radiator remains warm at top any advice would be appreciated
  2. L

    vaillant ecotec plus 428

    hi this newly installed boiler seems to act like an electric kettle on hw only it fires up for 15 secs reaches 70 then cuts out , cools then ignites again- slightly better when cw on as well - s53 comes up on display - installer awhol - is this a boiler output issue house ha 11 radiators but 6...
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