When I turn on my bath shower mixer I only get cold water from the shower head even though the hot water is turned on full.
Get it checked by a professional
Post your job & get responses from local tradespeople. Read reviews before you decide to hire.
I guess this has just been fitted ..the hot and cold water supplies need to be swapped over then it will work fine
Hi, you need to change the thermostat valve.
Hi. Have you checked to make sure no one has isolated the hot watet on the bath? If not try turning just the hot tap on, if no water still comes out its probably the valve in the hot tap failed. That can be fixed most times with a tap head repair kit from a good plumbing shop depending on what sort of taps you have. This is providing that it is not a thermostatic mixer
Hi, do you have combi system or hot water tank?
check the ht and cold feeds are the correct way round
as some times the hot is under more pressure than the cold so it will overpower the hot
really depends on your boiler
Is it an electric shower (i.e. instant heat - pull cord switch etc) or is it fed from your main boiler?
If its electric it sounds like something has tripped - check that its actually switched on (sorry but worth mentioning!), check that the fuse/tripswitch hasn't blown on that circuit, and if both of those are OK then only two possibilities remain - one is that the element has blown and the other is that the thermal cutout has operated but not reset for some reason (if you turn the power off and back on it may do but should have done when it cooled down). If you are in hard water area you need to expect an electric shower to have a relatively short life as the scale gets on the element and causes over heating.
If its fed off your water boiler you may have an airlock or blockage in the hot water pipe - not a lot you can do about that unless you can track it by feeling where the pipe stops getting hot. A tap with your hand on the pipe - gently - might be enough, but otherwise I'd get the plumber out.
It's very difficult to diagnose this without more info I'm afraid - can you provide a bit more?