Shower Mixer Not Getting Hot

Your shower mixing valve controls the water temperature of your shower by blending together cold and hot.
Shower mixer not getting hot. The usual suspects for this problem are a blocked shower head kinked or damaged shower hose or blocked inlet filters in the shower itself. Your shower mixing valve might have gone bad. Hi i am having this problem since we moved into the house the hot water in the shower dos not seem to work it was atleast working for a minute or so earlier but now it hardly works for 20 seconds and then turn cold wait for another 2 or 3 minutes and it will start giving out lukewarm water for another 20 seconds and back to freezing cold water.
If your problem wasn t the anti scalding device your shower mixing valve has most likely gone bad and is preventing hot water from mixing properly into your shower water. Pressure balancing valves regulate both pressure and the ratio of cold and hot water that flows out of the showerhead. A shower should be counted on to be good and hot when you need it to be.
Why pressure balancing valves fail. If your shower water does not get hot or stay hot follow these troubleshooting steps to help you determine if it is time to contact a plumber. If the other faucets around the house do have hot and cold water then the problem is most likely the pressure balancing valve in your shower.
From our experience this occurs mostly on combination boiler setups. Single handle shower configurations as opposed to set ups with a separate hot and cold handle have an internal cartridge attached to a valve that mixes water from your lines to meet your desired temperature and just like any other plumbing in your. Shower water not getting hot.
Has anyone used hot water recently. If it worked ok before and you are getting hot water at the start check the shower mixer. But keep in mind that the hot water coming from a shower is coming from.
The most common faults with mixer showers are. Intermittently running hot and cold. Is your header tank running dry.