Why does my shower water go hot and cold?

When the shower goes cold, and hot, and then cold again it’s natural to blame the combi boiler for the problem. However, if the flame is steady while someone else is showering and reports the water going hot and cold you may have a different problem.

What happens when you turn off the shower and turn on the water?

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.

Why does hot water come out when cold water comes out?

When the control is moved toward the “H” for hot, cold water comes out instead, and vice versa. Unfortunately, this is usually the result of a poor faucet installation. It is an especially common problem for those who attempt a “do-it-yourself” plumbing installation.

What’s the difference between hot and cold shower heads?

My shower starts out hot but then after 4-5 minutes goes cold, then 4-5 minutes later gets hot again. Had this problem 4 Have Bosch 830 ES LP. Temp goes hot to cold in shower only; Have Bosch 830 ES LP. Temp goes hot to cold in shower only; not at other taps. … read more We have one of your large shower heads. Been installed about

Why does my hot water go cold when I take a shower?

Overuse Of The System To Many People Using Hot Water If you are not using an instant water heater or tankless water heater, chances are high that you may be overusing hot water. This happens if you have guests over the house and there are a lot more people taking showers.

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.

Why does the water temperature in my shower fluctuate?

But although tankless models will provide steady hot water, they can sometimes result in fluctuating temperatures. Tankless designs heat water on demand instead of storing already-heated water. This means that when the burner switches off, cold water can move through the line and into your shower.

Why does my hot water heater go cold so quickly?

As the water heaters age, sediment tends to build up and this is where you need to set aside time for regular inspection. Especially if your hot water goes cold quickly. The regular and timed inspection ensures that you fix faulty systems and reducing any problems that may arise.

Why does my Combi shower keep going hot?

Water pressure on an outside tap is just over 4 bar so opening a second hot tap is not good for the shower. With the shower running and a basin hot tap running the burner takes a lot longer to cut but when it does, the water remains hot, even on the cut duration.

What to do when your hot water heater wont turn on?

Either take the shower head off and soak it in vinegar water for 1/2 hour to clean it or tap out the water restrictor screen in the center of it and see if that solves the problem. When you turn out other faucets at the same time, that increases water flow out of the water heater and keeps the heater turned on.

Is the hot water in the shower always lukewarm?

Now we have hot water again but the temperature in the shower is constantly cycling between very hot and lukewarm, in bursts of a few seconds.

When the shower goes cold, and hot, and then cold again it’s natural to blame the combi boiler for the problem. However, if the flame is steady while someone else is showering and reports the water going hot and cold you may have a different problem.

Water pressure on an outside tap is just over 4 bar so opening a second hot tap is not good for the shower. With the shower running and a basin hot tap running the burner takes a lot longer to cut but when it does, the water remains hot, even on the cut duration.