How to fix your Hot Water Temperature Mixing valve

This is a how-to video on fixing your hot water temperature mixing valve (Thermostatic Mixing Valve) on your hot water tank. These valves are notorious for getting guck/debris stuck in them so they prevent the hot and cold water to mix properly. This can cause the water that comes out of your bathrooms and kitchen faucets not to get hot enough. This is a simple fix to try before calling a plumber or a service repair person.

[LemonQueen]

OMG'osh! Thank you so very much!!! I had a plumber in yesterday that told me it was a $400.00 fix! I was even going to buy parts and try to fix it myself. After seeing your video, and following your simple instructions, I have my hot water back!!!! Thank you

[bella_cello]

Thank you so much!!! Single mom of 2. I was able to follow your instructions and save myself several hundreds of dollars!! I’m so excited to have a hot shower … finally!!! ❤

[Skyscraper]

Thanks bru. My tempering valve was being funny, the geyser had just been replaced like in the past week and we weren't getting any hot water. So I felt along the pipes and realised hot water was reaching the Tempering valve but only cold water was coming through into our hot taps.

So I did what you suggested and it worked. I opened fully to only cold water, and then when I tempered the water again I had hot water.

Many thanks. Keep up the good worl

[mikec]

Just wanted to another be commentator to share my hot water issue was fixed after watching this video. Thank you! Plumber would have charged $195/hr. Buying a new Thermostatic Valve cost $110-$150 depending on USA-made or that other place.

I also flushed my hot water tank before messing with the mixing valve. If you don't, the crap from the hot water storage tank will clog up the valve again then you'll have to watch this video and start all over again :)

[mitchellflatt]

This video was super helpful. Had our tank replaced recently and after it was done we didn't have any hot water. The guy has said it was a mixer valve issue and this video helped me figure it out until I could get it replaced. Thank you!

[ManjinderSingh-skij]

Very helpful Vedio for me, u save my lot of money .thanx

[Bbking-b]

You are the man!! Simple fix but an amazing fix none the less. Just like some of the other comments in here, I recently had my water heater replaced and suddenly we stopped getting hot water. I tried turning the mixing valve but that didn’t work. Turning it so it’s mainly cold water seemed to have clear the funk. You’ e saved me a plumber visit!

[fredericmasse]

Thanks for this easy tip. Went from 94oF before to 115oF after! Happy wife and teenagers!!!

[zaskatun]

Thank you so much! Fixed my problem within the first 30 seconds of your video! Magician!!!

[nukestrom]

Thank you so much. You saved us from an expensive replacement. It worked just as you said. Superb.

[mysuperintendent]

For anyone wondering, the "crud" is sediment from the hot water storage tank or hot water heater. The "screen" is an aerator (in case you want to buy a new one).

[ineedhoez]

OMG!!!! I was ready to convert back to a gas tank because I couldn't take a simple hot bath. Followed the video and boom! 3rd degree burns! Just how I like it😊😊😊

[Wolffman]

Thank you sir!!! This worked like a charm for me. I had to replace my temp sensor on my water heater and then I was getting low hot water pressure with just warm water. I was just about to call the YOU!!!!

[honestmarc]

Hey man.. thanks for posting. You saved me big time. I desperately needed a shower. It worked!!

[andrewrestoration]

Thanks!!
Watched the video.
Saved money.

[katetoyloy]

Thanks a million for the clear explanation. Was an easy fix! Much appreciated!!

[fumeilie]

Thank you thank you for the tip, it totally worked for my problem, to fixed a just only1 year old mixing valve. This is a new replacement of previous mixer valve which had the same problem before. GBU.

[aarongreensr]

This is a great video! By chance, what type of tool do you use to unscrew that mixing valve cap?! None of my screwdrivers fit! Once I get that off, hot water here we come! Thanks again!

[MrWebertube]

Thanks for the vid
Funny that your tap is all loose though, 2:00 with all your knowledge why don't you fix it?

[wordbird]

You can buy a filter system that limits the sediment. Plumbers are not required to install them, but an inspector will tell you they’re required.