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Mira thermal cut-out assembly (TCO) (439.90)

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  • Product Description:

    Mira thermal cut-out assembly (TCO).

    Product code also known as Mira 1.439.90.5.

    Note: Please check that this TCO fits the version of the shower that you have, as there are different versions of the Sport/Jump/Sprint. Please view compatible models by clicking 'this product fits' or see our article on identifying showers and parts for more help.

    The Mira thermal cut-out assembly (TCO) (439.90) is a genuine, brand new Mira product, covered by a minimum 1 year Mira manufacturer's guarantee.

    Available for same day despatch if ordered before 3:30pm Monday-Friday (otherwise despatching will be on the next working day). For the delivery options available for this product, please add it to your Basket or see our delivery options page.

    Not what you're looking for? See all Mira Thermal Switches or try our unique Shower Spares Finder.

    For advice on this or any product, please call 01452 619836, email us at support@showerspares.com, or see our contact page.

    Product Specifications:

  • The Mira thermal cut-out assembly (TCO) (439.90) will fit the following 17 products.

    List(s) are sorted by product type and then alphabetically.

    Hover overTap any icon below to see a preview of that model.

    May fit other products.

    If you are unsure of your product model, or would like more information, please contact us.

  • A selection of the latest reviews for the Mira thermal cut-out assembly (TCO) (439.90) can be read below:

    • Delivery as stated on time. Part did the job required.

      John Weale

    • Was extremely happy with product. and delivery.

      Betsy Milcairns

    • Fitted perfectly and worked perfectly

      Ian Williams

    • Durable product, easy to fit

      Matthew Pounder

    • TCO - Part worked fine and fast delivery thank you

      Yvonne Greenwood

    • Great service. Easy ordering and prompt delivery.
      Very happy -'Thanks.

      Lynda Graham

    • I had a problem of no hot water from shower. Changed the heater tank first (which was needed anyway) but this didn't solve the problem. However, a new thermal cut-out did. Very easy to fit.

      Mike S.

    • Quick, efficient service

      Joyce Enderby

    • Great product and customer service 👍😀

      Bryan Bell

    • Reliable supplier who I’ve used more than once 👍🏻

      Elaine Brownlee

    • Good information on the website about the product and which shower models it is compatible with, the product arrived promptly and works fine

      Matthew

    • Good product came within 2 days

      Tony Scofield

    • Good ordering experience, product easy to find on your website and reasonably priced for both product and delivery charge. Will continue to use yourselves for parts for my Mira Go, ( trying to keep it going for as long as possible without having to resort to buying a new one).

      John Parritt

    • Great price and quickly delivered.

      Bill Howell

    • Competitive pricing and quickly delivery. What more than you ask for.

      Jorge Mendes

    • Super fast delivery. Really good price.

      Amanda Cash

  • Do you have a question about the Mira thermal cut-out assembly (TCO) (439.90)?

    Click the button below to send a question to one of our expert members of staff and we will email you back a direct response. If we feel the information might be useful to other customers, we will also show your question below for others to see.

    Ask a Question

    • I have a Mira Vie shower 8.5 kw, power goes to the shower but there is no heat, I am thinking thermal cut out switch ?

      Hello,
      Yes, from your description the thermal switch does need replacing.
      Thanks.

    • My Mira go shower has been working perfectly since we had it installed but recently it has started to get really hot have descaled the shower head and checked the inlet filter it was better for a few days but now even with the heat control down to min. is it almost to hot to get in. could this be the thermal switch ? any help would be appreciated
      Thanks Pete

      Hello,
      Have you tried turning the dial down to the first heat setting and starting the temperature dial at cold then turning round to hot? What sort of temperature do you get then?
      Thanks.
      National Shower Spares

    • Hi - we have a mira play shower and experiencing some problems. Shpwerbflows perfect but then loses heat intermittently. Sometimes during a shower but sometimes just does not get hot. Could this be the thermal cut out? Curve ball is the shower can start hot then go cold after a few minutes. Leave it for 30 minutes and it gets hot again.

      Hello, yes this is most likely to be a thermal switch, it could also be the pressure switch dropping out, you would have to re-create the fault, then test the thermal switch for continuity, open circuit = faulty. Job for an electrician.

    • Hi there
      My mira play shower has just started to cut out half way through a shower all electrics are working fine I switch it off and leave for 10 mins and then it starts to work again. This doesn't happen every time it is intermittent.
      Any help would be great
      Thanks
      Lorraine

      Hello, if it stops flowing you need a new solenoid, if it stops heating but stays flowing then it is probably the thermal cut out.

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