Hello,

I just moved in to a "new to me" older house built in the 70's, problem is with the bathroom sink water supply....the faucet it a delta single knob, and when I turn on the hot water i get cold ( the cold works fine ), I turned off both valves under the sink and tried them 1 at a time both are sending plenty of water its just always cold, the hot water in the rest of the house works great, any ideas, thanks in advance

speedball1

Are you saying the left hand angle stop,( the hot side) only produces cold water? Back to you, Tom

Claire58

you should call a plumber, either your water heater dosent work or the plumbing for that particular faucet is wired wrong. the same thing happend to me but to my washing machine.

ballengerb1

I doubt if we have a supply line "wired wrong" if the home is nearly 40 years old. Was any plumbing work done recently and how is the hot supply to all other fixtures?

bigcountry1860

yes speedball1, both the hot and cold supply lines produce cold water at the faucet...claire58 & ballengerb1, all the hot water for everything else in the house works fantastic including the bathtub that is 5 ft from the sink, as far as any new plumbing work being done I have no idea but nothing looks "new"

ballengerb1

Just help me clear this in my mind. If you shut off the cold stop valve under the sink and open the hot valve above the sink you still get cold water, right?

bigcountry1860

yes, thats rite i got cold water coming from the hot supply line at the bathroom sink only, hot water works fine everywere else in the house......its the wierdest thing i ever saw im totaly baffled

ballengerb1

Under the sink, which stop did you close, left or right?

bigcountry1860

i closed them both then tested each one individually....cold water on both....

ballengerb1

I am at a loss on this and hope Speedball1, Tom, will come back with his thoughts. All that I can think of is that the previous owner did some work on the plumbing and has somehow made a huge mistake. In the meantime try to trace the hot and cold supply lines back throught the house if you have access. We know hot water leaves you heater and somewhere along the run is no longer connected to the line supplying the mixer. Your thoughts Tom?