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    Honeywell V4073A 5 wire/6 wire

    Just like to say thankyou worked like a dream. Now have some heat. Hope the advise is of help to others as well. :D :D :D :D :D :D
  2. T

    Honeywell V4073A 5 wire/6 wire

    Magic Thankyou
  3. T

    Honeywell V4073A 5 wire/6 wire

    Thanks lets hope they are back to work tomorrow
  4. T

    Honeywell V4073A 5 wire/6 wire

    Old one, White, Brown, Green, Red, Blue, Grey New one White, Green, Red, Blue, Grey So the different one is the Brown
  5. T

    Honeywell V4073A 5 wire/6 wire

    The instruction leaflet says contact Honeywell if you have 6 wires. The UK web site is down
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    Honeywell V4073A 5 wire/6 wire

    My heating system gave up and only had hot water side working. When the heating called nothing happened. I was advised probably the 3 way valve. Looked at it a V4073A so off I went and got one. Except the new one has 5 wires the old one has 6 which I understand feeds a relay on the side. The...
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