Water is hot on both hot and cold side of tap

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I have a building that has hot water coming from the cold and hot side. It has a recirculating pump, it also has a mixing valve. What do you think the problem could be?

3 weeks 80 views

Answer ( 1 )

  1. Knight Plumbing Heating and Air Conditioning

    The problem here would be a cross connection somewhere in the system. Especially with the recirculating pump somewhere the hot and cold is mixing. Most likely you have a check valve or mixing valve that is stuck in the open position or you need a check valve installed in the system to prevent this from happening.

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