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Main Combi 30 Eco - hot water is cool?

Discussion in 'Plumbing and Central Heating' started by Neil Minter, 13 Oct 2021.

  1. Neil Minter

    Neil Minter

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    The HW is not reaching the temp set on boiler, also have to run hot tap a long while before it gets any degree of hot water through. Central heating radiator temp is OK.
    Any ideas? Thermostat on boiler?
     
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  3. picasso

    picasso

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    See is the 22mm central heating pipe on the left under the boiler gets hot when you run a tap, if it does its a sticking diverter valve.
     
  4. Neil Minter

    Neil Minter

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    Thanks, will check that tonight.
     
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