Water doesn't cycle hot to cold to hot. I … If the cold water flow is reduced (due to a toilet flush), the valve automatically adjusts the amount of hot water being mixed. Before that time (around 15 years ago) combi boilers were only just incorporating condensing technology and went through a period of change and fine tuning. Discussion in 'Plumbing and Central Heating' started by MisterFish, 10 Dec 2014. my water keeps going hot... my water keeps going hot then cold - I have just repressurised my boiler but it is still doing it - any ideas? ... Hi we are having a bathroom suite fitted and the fitter had to drain the systems down to move the various hot and cold water pipes. Page 1 of 3 1 2 3 Next > MisterFish. Young children can get severe burns if there’s an unexpected hot water surge out of your shower head. I tested this by leaving the hot sink tap on when entering the shower, and presto! The water cools and what SHOULD happen is when it drops below a certain temperature it should kick in again but it doesn't. However, if the flame is steady while someone else is showering and reports the water going hot and cold you may have a … You could try fitting a flow regulator to the cold water feed to the shower or a non return valve to the hot water feed or both. Joined: 17 Aug 2011 Messages: 130 Thanks Received: 2 Location: Birmingham Country: I had a problem with my boiler (Baxi Duo-Tec Combi 40 HE A). A dirty water filter on the cold water inlet. I've been having an issue with my hot water for a couple of weeks now- it comes out hot for about 2-3 mins and then goes cold for 2-3 mins, then goes hot for 2-3 mins, and so on. The hot water is very hot but it's not high pressure so I have to add a lot of cold to it to get it to the right temperature. Although the main control valve seldom breaks down, it can happen. And when this happens, cold water no longer gets pushed down to the bottom. If I'm in the bathroom and run the bath tap, then go back to running the hot water tap at the sink, the water will go back to hot again. Downstairs in the kitchen the hot water isn't too bad, but it will still go from hot to cold, then back again. Thread starter Medulla; Start date Jan 9, 2014; Status Not open for further replies. The most common reason for a dip tube going “bad” is because it’s disintegrated away (or has started to). Boiler problem - alternating hot and cold water. This is why you are getting hot then cold water in the shower because the boiler is switching itself on and off throughout the water heating cycle. Since then, I more carefully checked the kitchen tap and that is also oscillating between hot and cold, but to a lesser degree (i.e. March 27, 2017. by admin. Lately, I have been having a problem with the water going cold in the middle of showers. Show Less. It was overheating and then when cool loosing pressure and stopping. It starts off getting hot which is taking longer than usual. It seems to be something to do with the mixing of hot and cold; if I just run the hot water by itself it's fine but when the cold water is introduced the hot goes off. Ask Your Own UK Plumbing Question. You could try fitting a flow regulator to the cold water feed to the shower or a non return valve to the hot water feed or both. How to check for a bad dip tube Shower keeps going hot and cold Hi I have a infinnity hot water system and have recently replaced one of the shower heads - now I find the shower is constantly going cold half way through a shower - can anyone advise what the problem could be. 0 Comment. A bit irritating when you're in the shower, as you might imagine. Medulla Striker . Instead, it mixes with the hot water at the top of the tank. Plumber: Rick Ridley, UK Heating Engineer replied 7 years ago. Baxi Boiler - Water gets hot then cold then hot. I have a Mira Realm shower which i have had for nearly 15 years. The boiler heats up to it's maximum of 85 degrees on the readout then stops firing up.


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