Reply To: Mysterious hot water comes and goes

[eman3gtParticipant]

Dunbar, Thank you for your help!

It turned out, a plumber recently installed a new diverter in one of my showers, but didn’t install the cartridge that blocks the flow of water…hence, cold and hot were crossed into one another. sigh

I temporarily closed the stop valves on the diverter till we’re ready to complete the renovations.

Problem solved! Thank you again for your help.