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  1. P

    Changed Controller now no heat in downstairs rad?

    Well, I did think that but have not checked it yet.. The rad was hot'ish before I changed the controller...
  2. P

    Changed Controller now no heat in downstairs rad?

    I have just changed the controller on my CH system.. nothing flash just a simple analogue one... I only have 3 rads on the system but now only the upstairs RADs work, the one downstairs is cold. What could I have done wrong.. ie could I have got the HW & CH wire crossed ??
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