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  1. K

    Powermax 155 heating prob

    Hello morning every1 I am new in the trade and doing my gas safe i have a prob here with the powermax 155 CH the problem is hw is working fine bottom pump is working fine just the pump for central heating is not getting any power. i check the power all the connector block but but there is no...
  2. K

    DHW problem on the Alpha c27

    Morning Many thanks in adv for all the help. I have prob with bolier Alpha which is working mean CH is fine but problem with HW. even there is no Cw flow i men from the hot taps think is it the diverter valve or some thing els? cheers
  3. K

    Air lock in heating

    hi there i have the problem with my heating system upstair rad are heating up but not the downstairs. pump is working don't know how to get rid of the air lock. thanks
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