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danfoss hpa2

  1. N

    Central heating only luke warm

    Hi experts, I have a Ideal Logic Combi ESP1 35 boiler and its c.6 years old in my 'new' build. I also have a two wired Danfoss TP5000si thermostats, one upstairs and one downstairs connected to two Danfoss HPA2 2-port actuators, as you'd expect. Problem I have is that neither of the thermostats...
  2. D

    [Danfoss TP5000Si][IDEAL ESP1 35] Heating won't turn off in 1 zone; replaced thermostats - no luck

    Central heating 1 combi boiler in the kitchen IDEAL Logic Combi ESP1 35 1 thermostat in hall Danfoss TP5000Si 1 thermostat in upstairs bedroom Danfoss TP5000Si 2 motorised valves in upstairs airing cupboard Danfoss TYPE HPA2 Heating is not turned off Both zones - but only 1 zone at a time -...
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