Electric showers: Test and replace Mira Sport 416.41 thermal cut-out (TCO).

[@traynortm]

Absolute legend! Been a desk worker for years, and now a fully qualified sparky! :p Fixed my shower perfectly! Thank you!!

[@sparkrace]

On the newer models it's a little easier as they have a post stud at the back rather than a screw.

[@mostrimmolly]

Thank you for sharing this knowledge. After a quote of over €120 to look at the shower with a €360 fee to replace it if not fixable...to 2 guys telling us to just buy a new one. €25 later and 10 minutes work......hot shower!!!! Perfect. Thanks again.

[@HH-xt5mq]

After following this video we established that the thermal switch (tco) 416.41 did not have continuity and ordered a spare from Shower Doctor which arrived promptly. My husband was able to replace the faulty thermal switch with ease, thanks to the brilliant video, saving us an absolute fortune, and the hassle of replacing an otherwise functioning shower. Thank you, thank you, thank you.

[@janewrin1830]

I found Shower Doctor years ago. As a plumber I was tired of throwing plastic into landfill. I now direct all customers to them and occasional buy the part myself, before doing this kind of faffy but environmentally honest job.

[@TonyOmo80]

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.

[@chrisweeks4224]

I had a perfectly working shower except that the water was cold (same model). I followed this great video and fixed it with very little hassle. Went slowly and carefully, had to stand on the edge of the bath. One difference between the video and my shower was that the two thick brown wires at the top were held together with a small plastic cable tie which I snipped to make it easier to get the old part out. Thanks a lot.

[@SuperGamberoni]

Thank you for this, hugely helpful. Our wiring was a little more complex than the example and we had significant rust on the TCO and the top of the heating unit, but some light sanding with emery paper took the rust off.Getting the screws to sit properly was a little tricky - they kept trying to cross thread themselves - but got it done. Took about an hour altogether, but a lot of that was finding some electricians tape to hold the wires together while I sanded. Great news was as soon as we powered on again the shower worked perfectly and it stil does.

[@RAH21M]

Useful video. I've just replaced the thermal switch part number 1563.719 in my Mora Sports Thermostatic shower which has a larger casing overlap than the one you were demonstrating on. For anyone else replacing this part, the secret is to remove the two screws holding the inlet clamp, the two screws retaining the heater tank to the casing and the one screw holding the temperature cam pulley/inlet valve assembly to the casing. This then releases the heater tank enough to ger access to the T15 screws. I temporarily fixed the thermal switch in place using the single T15 screw so it was more stable when I attached the cables to its two terminal. Job done and thanks for the video

[@zacetto]

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.

[@LS3SJP]

You're my hero, George. Your video saved us over £200 (price quoted by a Triton engineer - cost of new TCO) and gave us enormous satisfaction at a DIY job well done. Kudos.

[@chrisspere4836]

Expert advice. Thankyou on behalf of thousands of us. You are a generous person for sharing. And thank God for KZbin.

[@charlessayer]

Legend. This did just the trick £18 for the TCO and £10 for a new ratcheting screwdriver with T10 and other bits. We shall shower in hot water tonight!

[@planetandyc]

Many thanks for a great video. Quick diagnosis informed me and the TCO ordered. I have just fixed it . Great to save money (£18 vs more than a new shower) and dumping the unit to landfill. Very confidence inspiring and I now feel I understand the electric shower, so I'm empowered!

[@megpaterson5189]

I had to laugh when you said taking a picture or two was essential. My sons shower was cutting out so after viewing a couple of your vids, I purchased a TCO and a solenoid. The shower in question a Mira Jump Mk 1. I could not find a vid for that particular unit. I thought I would replace both to be sure. Well the solenoid was a devil to get out and get the replacement in, not much room for sausage fingers, but eventually I got it in. Now the TCO, well I had fully intended taking the pics, but forgot. getting it out was a nightmare as was getting it the replacement back in after much ado it was in place but I had forgotten where the 2 x blue wires and 2 Brown went. I was sick to the stomach thought I had really screwed up. After a pause and a cuppa I went back put them where I thought they should be put cover back on flipped the switch in the fuse box and pulled the cord, pressed the button, and low and behold a working shower. £25 for parts, plus some anxiety of my own creation saved abt. £180 + for a replacement plus fitting. Ever so grateful for you guidance and superb videos. Thank you.

[@tinkeringinthailand8147]

When I removed the TCO I noticed a small plastic pin on the top, when I pushed it back down it worked again. This pin seems to be a kind of breaker and due to this the repair cost me absolutely nothing bar the 10 minutes work. The mother in law was about to buy a new shower. Many thanks 👍👍

[@batchrocketproject4720]

Useful to know. I'd wondered if they could be reset. What make was your shower?

[@tinkeringinthailand8147]

@@batchrocketproject4720 It was Sharp.

[@davidbalfe1967]

Thanks for the great video and the clear instructions on how to fix this problem. You have saved me a lot of money but more importantly the hassle of trying to get someone to do the job as we live in a rural location and its impossible to get any tradesman to do any kind of work let alone a small job. We live with someone who has a disability so a working shower is a must and we only have one bathroom too. We are so so grateful to you. You are a total LEGEND.

[@stephaniehibbitt6826]

Thank you very much for posting this video, it's really helpful and I was able to fix my electric shower safely and quickly. Thanks for saving me £160 on a new shower 🚿 😊

[@FREEZE64UK]

Absolutely brilliant! I ordered the part from Amazon, viewed this video about 5 times and fitted the part! It worked :-) I'm not an electrician and HATE DIY... but thanks to this great video, I fixed it! Time for a hot shower. Many thanks.

[@janewrin1830]

You really need to ditch Tax dodging Amazon - I know that was 4 years ago but ... use people like these guys who are great and pay tax.

[@Michael-T-G-ps110]

Jane Wrin here comes the woke brigade

[@ahmedmansur5338]

how did you check if it was the thermal cut-out that was the problem?

[@龙的传人-u6s]

Which part is it?

[@josh84689]

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!

[@gavinlester4170]

Thank you for this video £17 and we now have hot water for the first time in 2 yrs. I just assumed the whole unit was broke and not been very clued up on these things just left it. I then found this video and it was such an easy fix.

[@leberlin]

Great video, lovely little tips to help exchange old for new, keep them coming as you made this task very simple and a very happy viewer.😊

[@TheWhteWolf]

Thanks the really helped. I don't have much money but what I did was buy 2 of the same shower and keep one for parts and indeed my shower kept cutting out and resting even on low temps. This video really helped and saved me replacing everything. My eletric shower is my only source of hot water as my gas meter is broken and they are taking forever to fix it. Luckily everything in my home is eletric so I don't miss it much unless I want a really hot bath. With the shower it takes an hour to fill the bath lol. My mum always said of you can't improvise.

[@kevindoherty3877]

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

[@raymondawilcox7814]

Really helpful video. Replaced my TCO and saved a lot of money. However, my shower inners were back to front making the task a bit more difficult (a few expletives were heard in the house because of that).

[@oclv69]

Followed this video and fitted the TCO in less than 10 minutes with no electrical experience. Shower now works fine and Mira quoted £150. The TCO cost £11 plus the price of the tools came to £18. Thanks very much, I never even lost my temper !

[@johnmoran3344]

maybe should have used a vde insulated screwdriver even with power off

[@Munroist2354]

John Moran Fair comment!

[@enochpowelghost]

I wear pink marrigolds when doing this type of thing it can save your life and you look cute!

[@MrDanOxford]

Thank you for this video! I thought it would be a tricky job but this led me through step by step and I've now fixed my own shower! (And I'm crap at DIY). Cheers you legend.

[@LTR2022]

Thank you i have just managed to fix my shower with this video and alot of patience, Last year i tried to change my thermostat to digital and managed to blow something in my boiler, but no problems this time, hope you are well 🙏

[@GSMah]

You just saved me £150 on a new shower. I thought I'd have a quick look online and I found you. Thanks so much

[@terrellshelton20able]

Thank you so much, as a woman I have had to learn DIY over the years and I watched this video, easy to follow and saved myself over £240 for new shower, thanks again x

[@FireMaiden.666]

"As a woman I've had to learn DIY over the years"? WTF?! I'm a woman and get in with it. It's no different to what a man has to do *facepalm*

[@orangephoenix6945]

Fantastic video, just saved me £180 on a replacement mira sport shower, got the part for £16 from amazon fitted it in 30min max and i wouldn’t call myself a diy expert by any stretch

[@akshaypatel2233]

Was your shower cycling hot & cold??

[@divyeshhira8868]

@@akshaypatel2233 Hi did you tried replacing TCO because mine shower is throwing hot and cold water please reply

[@arg1000]

Top job Shower Doctor! Video was spot on and parts from website as described. Saved me loads and got the shower working just before Christmas visitors arrived. 👍

[@stephenhughes4238]

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

[@Tomenage100]

Brilliant video, I’m a diy novice but I had this sorted in 10 mins, saved a fortune.

[@BenMcrea61]

Thank you for this video. I’ve just replaced this on my Mira Sport. It was difficult to get it out but I followed your instructions and got there eventually. Many thanks 🙏

[@wiggytoo]

Many thanks, mine was a Triton shower but the principle was the same, and I had thought I'd need to get it off the wall to do it.

[@normanabumuhammad2144]

That was really enjoyable watching and learning. I have a completely cold shower and I reckon that it is the TCO. I will replace it and will hopefully get it right. Thank you for the video. It might save me forking out £109 for engineer to 'fix' it

[@kristinekiddell1196]

Thank you SO MUCH, you just saved me a fortune and taught me and my daughter a new skillset. Its extremely kind and generous of you to take the time to share your skills with others. All the likes!

[@grahamelliot582]

Great video. Followed it to the letter and shower fixed in 20 mins.

[@heathoatmeal]

Excellent video...thank you. Changed the switch in less than fifteen minutes.

[@LukeChandlerDesign]

Great video, thorough, well paced and now I have a hot shower again!

[@paulbirkinshaw]

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

[@vincentpaul2198]

Thank you for posting this video saved my family money and inconvenience your a true gent 👏👍

[@batchrocketproject4720]

Thank you. If only more youtube videos were this clear, excellent. Has anyone tried 'popping' their faulty thermal switch back into life? I've done so with what I assume to be an equivalent switch in tumble driers by throwing them on the floor a few times until you hear a pop (which is the stuck metal diaphragm resetting). Curious to hear if anyone has tried that with a shower thermal switch.

[@dynamikspeed3973]

Really good video. By the way you might have rust underneath the TCO where it sits on the gold coloured top of the water tank. This is also the why you get cold water and overheat light. It took me 30 mins of sanding to get most of the rust off under the TCO and on the gold top. This creates a good connection again. This even saved me having to buy a new TCO.

[@TheHadgee]

Hi, I checked mine and it failed the continuity test. I noticed a build up of oxidation, I tested the TCO off the shower and it worked. Cleaned the oxidation replaced and all good at the moment. Thank you for the video and instruction.

[@sophiamcnamara9851]

I will attempt this this week my shower is only flowing stone cold water thank you great video

[@FiVibe]

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!

[@juststuff5640]

Great guide. Followed and shower repaired. Spot on with the soapy hair sensor! Many thanks

[@riveness]

Hi I tested and the tco is a dud on a shower I didn't buy but now own. I could get a tco but a new shower would only cost £50 which is what I'll go for. Thanks for the video

[@StiffyToffeePudding]

Thank you so much for posting this! Very much appreciated.

[@ClintThrust-e8r]

Thank you! I bought the part and a set of screwdrivers for a total cost of 25 quid. A Mira engineer repair costs £160.

[@robertwilson452]

Perfect explanation - if I'd just used the diagram from Mira I'd still be scratching what's left of my hair - thank you

[@bonkeydollocks1879]

The manufacturer does not want us mere mortals messing inside I've found

[@denispennec3615]

Excellent!! Saved me to replace the whole thing thank you !!!

[@jeffbaldwin9142]

Thanks again for this advice. I've just replaced the unit for the second time. This time I prised the back off the failed unit to have a look. It seems that the thermal switch had stuck in the open position. One press reset it. If it happens again I'll try that first and perhaps save myself £17 and a few days.

[@MikeGush.]

I think this switch has blown in ours, I intend to test it with a continuity tester asap. If so could this overheating be caused by having the shower running whilst the head is under the bath water? As we fill a makeshift small bath for the kids with the shower head.. Thanks. Mike

[@jadaco8920]

Your explanation and video is so clear! Not sure yet that that's the exact problem I have but looks likely. I think I'll give it a go.

[@jadaco8920]

Just to update, it was indeed the problem and, with my limited DIY skills, I was able to fix it pretty quickly, following this video. Top stuff - many thanks!

[@head_rat]

Awesome instructional video. This is the second time the shower doctor has saved me from buying a new shower. Video liked and subscribed. Pretty soon I'm going to have a "Trigger's" shower ;)

[@showerdoctor]

Thanks, glad we could help!

[@kenjohnston1614]

Fantastic, easy to follow guide and spot on, thanks

[@fe3963]

Super helpful video. Can I ask one question, do I need to use any thermal paste in between the TCO and heater tank ?

[@ThePoacher1969]

Perfect my part arrived it took me about 30 mins to do as I hate electric lol cheers

[@rexhake1]

lovely clear instructions , thanks [ it also saved me a few bob ]

[@robertocurrlos7470]

1:12 what would the sound be if it didn't have continuity...?

[@aarononeill7252]

Thanks so much, you saved me a fortune with this

[@smellyjelly233]

Brilliant video. Saved me getting the professionals in and a big bill 💥👍 cheers

[@TheKamm45]

Hi Shower Doc ive a Mira sport max with the Airboost tech. The airboost seems to of stopped or is very weak and the temprature is up and down depending on what setting its on. Ive been through your excellent videos but still the same. Help.

[@mikekelly1469]

Thanks so much this video is brilliant! Got the job done in 10 minutes thanks again! 👍

[@daveontoast]

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.

[@Djimini4pro4k]

Hi,my mira shower sport max 10.8 go from scalding hot to freezing cold on its own,tested thermal switch and it does have continuity,can it still be faulty?i have ordered one today from your website anyway,its probably 2-3 years old and sometimes i will 20 minutes under shower just waiting for the cooler or warmer water😤🤦‍♂️, thanks

[@jeffking4129]

THANKS! I am a complete DIY numpty, and certainly don't trust my abilities at all. Within minutes of watching this video I understood the fault, ordered the part and then fitted it on the day of delivery. I wasnt as quick as some, but it was done easily and without any trouble, and guess what? IT IS ACTUALLY FIXED! Brilliant, what's next?

[@fittpatley]

Thanks mate. I didn't test the stat before buying the new one just looked on forums and this was the solution to my symptoms. Then a quick KZbin search got me to this video and bish bash little bit fiddly bosh shower is running hot again. Now a question. On opening the unit it seemed a little sooty? Especially around the copper wires? Any ideas 💡

[@klecoxs2]

Superb vid easy to understand Thanks for posting

[@Hiccup77]

Excellent video. 100 haggis's for you good sir.

[@TheKhalidr48]

Brilliant video , one question I ordered the tco but the ground casing is in the wrong position makes it hard to assemble, do u thing I can unclip the casing and refit it without damaging the switch. Thanks

[@MikeFloutier]

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

[@johng7787]

What can cause a TCO to keep failing? 3 in 3 weeks. Water flow appears ok and also changed inlet filter which had no signs of scaling as I don’t think we have hard water. Prior to failing there’s no fluctuation in temperature. Take a shower and all good then the next time cold with continuity showing 1. It reads zero when fitting new TCO. Heating elements test at 11.3 and 11.2 ohms. Any ideas would be most welcome Thanks

[@rokhsana7291]

Hi, my mira stopped working. Only gives cold water. When I opened up the shower to check it I noticed a white powdery substance on top of the heating tank. What could have caused this? Do I need a new tank or a TCO? Thanks

[@PYT800]

Does Terminal cut out switch have a positive and negative preference as there is no markers on the connection points of the switch.cheers

[@scottadams8078]

My mira shower turns on for a split sec then turns off, I need to keep pressing the power button or high low button for about 15 mins then it turns on eventually can this be the solution, the water comes out a little on each attempt of pressing the buttons thanks in advance 👍

[@twaito]

Hi everyone. Trying to buy the right tco. Found one that has 4 out of 6 numbers matching but concerned its might not be right. Is there a particular number that HAS to be right???

[@Johnezo1]

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

[@leavemyrightsalone]

Great advice and video.

[@stephenrickards5460]

My shower(Mira azora)just started running cold power electrics are fine would this be the TCO

[@sylwesterbrokowski4941]

Great thanks.👍👍👍 Saved money

[@phils6723]

Ive had 2 showers installed in 2 years...the result is that the hot water always seems to stop working maybe around 12 months into use? Any ideas

[@LowreyContractorsUK]

What a great site thank you. Hope you make a fortune

[@shahidmahmood7358]

Hi, my Mira sport shower was working fine, but then three months ago it began to stop during bathing. But it doer not turns on when I push the water button. Shower red light still is on and shows electricity is there but no water comes out of it. can you please give your expert opinion please. I have already removed the shower head, but there is no any blockage. thanks

[@treborsirrah7916]

does this work for the ELITE ,Mira thanks ,my shower stopped heating, pump is running ok,power is there, just not heating

[@leeoakley1991]

My shower runs cold but then runs extremely hot then cold again.Could this still be an issue with the thermal cut out or something different?

[@robertocurrlos7470]

Is this the same as Mira enthuse?

[@marqus222]

Good day I have a problem I have a very low pressure hot water that is the reason that I could get some tips to fix this Arcadius

[@Rydo89VyT]

How much are one of those readers and what's it called? TIA

[@447944019554]

Thanks for the video, very informative..

[@BrianCadoret]

Thank you very much for your help.

[@garrygemmell5676]

Don't you like Creda showers George?

[@amandus152]

my shower makes weird noises, sometimes does heat water at all, sounds like its boiling but nothing happenes, sometimes it will work tho, does that mean that this is the switch? thank you

[@fanuc6220]

Thanks a I just fixed s my shower my self. :)

[@HIYAharry]

Thanks! Sorted my problem

[@StormadoMan]

So having had my TCO replaced what would cause it to fail again in a short space of time? I have observed a slightly louder mains hum than usual from(I am assuming) the heating element, faulty heating element?

[@averri1]

Hi Patrick, the lime deposits inside the boiler can cause the TCO to fail completely. This happens because the lime reduces the ability of the heating element to exchange heat with the water, so it overheats and the TCO cuts off permanently. This is a safety design.

[@JohnJackson-px5vv]

I have a Mira Sport Max which has started to take longer to stop after the cooling flush run. How can I remedy this. Thanks

[@JohnJackson-px5vv]

Hi same shower Myra Max Sport, 10.8 KW ,problem now is that the water doesn’t get very warm, even when it is set to the highest temperature, can you help please?

[@Harpreet06]

Do I only need to turn the electric off or the water off too?

[@jeffbaldwin9142]

Harpreet06 If you're careful there's no need to shut off the water, but it would reduce any worry and possibly avoid a soaking to shut the water off too.

[@Harpreet06]

Oh thanks for the reply but I've already done it now. I turned off both. Just a tip to people, you'll need a torx screwdriver to do it. The hardest part was taking the old TCO out so it was pretty easy job.

[@NewLeafProgramme]

Great video thanks very much