water turns cold after 5 minutes then hot again later

water turns cold after 5 minutes then hot again later

by kevin
(los angeles, ca)

In one shower, the hot water lasts about 5 minutes and then turns cold. If I turn off the shower or just wait with the cold water running, about 5 minutes later it is hot again. But here are the strange things I noticed. When the shower is running cold, the sinks upstairs are still running hot. Also, if I run both showers at the same time, then the problem shower does not have the problem of getting cold. And another thing is that this does not happen in this shower all the time, its intermittent. I'm very confused and appreciate any suggestions. Thanks!

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Jun 20, 2017
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Same problem as others-- hot then cold water
by: Russ

We just started having the same issue...hot for 5 min or so and then cold. But the sinks will be hot when the shower is cold??? Worked great for first 3 years until now. Would like to hear any good solutions.

Jun 07, 2017
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update
by: kevin

I noticed that when I turned on both the master shower and the second shower, the second shower no longer turned cold. So I believe when the second shower was running alone it was not drawing enough water through the water heater for it to kick in and heat up. So I replaced the low-flow shower head with a normal shower head and the problem has not occurred again.

Jun 05, 2017
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Loss of hot water
by: Anonymous

I am having the same problem. I'm wondering what it could be.

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