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Oh dear. Just tried this with my faulty Triton Cara and when I removed the coil as shown in the vid, water poured out of the shower and all over the bathroom floor. I'd obviously not quite turned the water off properly. Unfortunately, the new coil now won't fix back onto the valve and so I can't turn the house water back on. Any tips for isolating the shower's water supply, so we can turn the water back on at the mains to wash in sinks, drink water and go to the loo?!! Has been a total disaster :(

Hi. I have an aqua Lisa Doing all you have shown (thank you) unfortunately I have 1 of the cartridge screws out but the other 3 are extremely rust bound. Is there anything left to do before I have to replace the shower. ? Many thanks in advance Kind Regards Lee

1st Class.... just overhauled the 2 Mira showers on my 30 year old motor cruiser. 👍👍👍👍

Mine is only brand new. I just replaced one… now I’m wondering did the old one even need changing

Very clear thanks .... brilliant vids

Excellent video, help me identify the fault, know the part and how to fit the TCO. Great video. Shower working great again.

Thanks for this superb video. It always adds a degree of professionalism if you show competence witha multimeter and thanks to you, I was able to do so. I have replaced a few of these before and it never occurred to me to just loosen the earth pole screw, instead of removing it completely and carefully leaving the remaining two screws in situ, in the wire connectors. I managed to cannabilise an old TCO from another Mira shower. The job was done for a mate and he had just bought a like-for-like shower for a staggering £320!! He was made up when the repair saved him just under £300, as he was set to take a modest holiday with his family and money would have been tight if the complete unit had been changed. I have purchaed Shower Doctor products on more than a few occassions and in gratitude, will order another 416.41 ASAP.

Thanks for your Mira 723 video, replaced 936.59 service kit on Friday 02/08/22 with your help. Thanks George and regards from Brendan.

Fantastic videos and advice. Mended my Mira Sport by changing the solenoid; cost less than £20 and didn't take too long at all

Thanks

Thanks. All sorted now.

Great video, I've just replaced the thermal cut out as per your video, and it worked! Thanks, you saved me a fortune.

Hello-how do i know why switch on the fuse box is connected to the shower?

Thanks, I used this video to determine that it was the filters either side of the inlets that were clogged up. After cleaning them, it's working better than ever! I also used the other video by shower doctor to calibrate the temperature! Thanks Shower Doctor!

I managed to replace the shower cartridge three years ago and the same problem has happened again. I did purchase another cartridge but for some reason I’m getting no hot water. I purchased the entire replacement system like you have in your video but for some reason even the handle turns the opposite way when I turn the water on and I don’t get any pressure until I turn small until I get cold water flows, any idea why this is happening?

I have a Mira Sport shower and today when it was powering down, I heard a hissing sound and when i turned the shower back on its only pushing out cold water.

Many thanks for your instructions

I am finding that after removing and cleaning my cartridge (soaking in white vinegar to remove limescale) that it will not push in quite far enough in order to refit the grub screw. The hole in the cartridge does not quite align with that in the housing. Hammering it seems to be the only option but surely there must be a better way?

If the drip is on a combi boiler the boiler won't fire on the drip. If no meter the water isn't a cost. Still its good for the environment to fix

Ahem.....you forgot to mention the split nylon ring in front of the O ring.

Hi, do you have video on replacing prd on a selectronic shower please? It doesn’t seem as straightforward as most, thank you.

How do you shut of the water before replacing the valve?

Great video, best on youtube....fixed the shower a new TCO....Thanks!

why is the preassure lower when i turn it to hot water? on a Grohe....

If I've stupidly put that wax thermostat the wrong way round will it make any difference?

I would put reliability as the no. 1 feature. Unfortunately, Salamander pumps do not have this.

Need to show, not just talk.

Much appreciated just fixed mine

You didn't mention a splash guard at all in the video. I had this small thin flap of plastic fall on the floor when I removed the cover and on it it said warning do not remove splashguard. I am a bit confused as didn't know if this was the splashguard or not and couldn't see how to put it back in. On your video you made no mention of it so I assumed it couldn't be the 'splashguard' and was probably just there to give the message. Can you shed any light on this, my model is a Mira Sprint. I did follow your very helpful video and managed to replace the part and fix the problem so I am very happy. Purchased the part from your link too, rude not to!

Shame you did not demonstrate the tricky bit - the O ring replacement - because, as you say, this is the first question the manufacturer asks if a fault develops. Also you do not explain what the o ring does and when it must be replaced.

Top man

Brilliant explanation, worked a treat. Thank you! Are you related to John Higgins, the snooker player, by any chance? You look and sound like him, but you were much more uselful :):)

Thank you for this video. I changed the cartridge which was leaking and causing air locks in the shower.

Thanks very helpful

this video helped me so much, I was able to replace my tco and get my shower working again thanks to this all for the price of a takeaway. thank you!

You are great, man! We are 2 women and thanks to your video managed to open and clean it. Thanks!

excellent, clear explanation. thank you

Note to self. 3 shut off valves. Open whb hw to relieve residual pressure.

I think mine is the shower head but it's a constant issue. If I remove the shower head or turn the setting to jet, the temperature is fine, but on the normal setting it's far too hot. So we know the issue is with the shower head, but the issue is constant though and comes back quickly after the shower head is fully descaled (submerged in descaler) or even replaced. It's a hard water area but generally we get very little scale. The shower head is an official Triton shower head that is designed to be used with these showers. When running the shower cold with no shower head on it, lots of green and brown looking flakes come out into the shower tray. I'm guessing it's a type of scale building up in the heating element and then getting caught in the shower head? Any help would be much appreciated. The last thing I want to do is spend huge amounts replacing the shower only to face the same problem.

Showerdoc, you have no idea how much you have saved me by just watching this video. I struggled to get a plumber and when i finally got hold of one, they said my electric shower has to be replaced and quoted circa £400 for everything. I did not feel comfortable with this so decided to do some research which brought me to this video. I called Mira, ordered the TCO (£19), watched your step by step video and got my electric shower bringing back hot water in under an hour of my time. FYI, i am no DIY beginner, intermediate or expert. If i could do this with the help of your video, anyone else can. You have saved me hundreds of pounds. I will like to donate something small to any charity you support so please reach out. Thank you.

New thermostatic blender with very poor hot water pressure. If I disassemble it, pressure is fine, but then I cannot control temperature.

It says the video is 12 years old, still very relevant. The amount of information and style of delivery is timeless. Doc, you are the Goat 👏

Thank you 😊

Thank you, we'll described with good video imagery, what more does one require to repair a Mira shower😅

Mira select

Hi, wonder if you could help me please. I was just about to order the Thermal Switch for our Mira Sport Max Air Boost 10.8kw, having confirmed the heater was ok but the Thermal Switch had no continuity, when I read this on your site in an answer by Barrie - “After fitting a new TCO When fitting a new TCO listen to the shower, after it has completed its first on/off cycle, if when it is switched off you hear it continuing to heat (Noise like a kettle starting to boil) this will mean that there is a switch or a relay that is stuck in the on position, this is keeping an element energised and this is probably what caused the original TCO to fail. If this is the case replace the faulty switch or relay and make sure that you switch the shower off at the isolating switch when the shower is not in use because this may cause the new TCO to fail.” This “kettle boiling” description almost exactly describes what my wife heard immediately after she finished her shower. She found it disturbing and asked me to check the shower. The result being that it all worked fine but no hot water on any setting. My question is, “how can I tell which component (ie. Switch/relay) is stuck, and caused the Thermal Switch to trip/fail.”? Many thanks, Kind regards, Mike

Very useful video

does the water need to be turned off before hand

Don't know whats holding on the front cover of my old Triton T70, but it's definitely not phillips screws, maybe rust.

My tco has continuity and the element is also giving off correct readings, one 13 one 16 ish The water pressure is good. But not heating up, unless i turn it to full heat. And it gets hot but very low pressure. What could it be. Thanks