cold shower

[kevinc]

My shower is throwing out cold water even tho it is completly open, it is fed thru a gas combi boiler.. All other taps in the house are producing hot water, what recommendations does any1 have to solve the problem

 

[SimonJohns]

What type of shower do you have?

 

[Bubblecraft]

If you have an electric shower, it sounds like your element is away. If it is a thermostatic mixer, it could be the thermostat is away or a blockage.


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[kevinc]

no mate its mains fed, still good pressure n all but just less than luke warm water

 

[kevinc]

It says mira element on front of the chrome tap
I'll try n google a pic of it and paste it on here to give you a better idea

 

[Bubblecraft]

I know the shower. It's a thermostatic mixer. The thermostat could be away or a blockage. There is too much cold to hot ratio.


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[kevinc]

the only way I could describe it is ' a chrome round wall mounted mixer, the further left you rotate it the warmer it gets'! is this the type you are thinking of?

 

[Bubblecraft]

Before you go buying a new thermostatic replacement, remove the shower valve and there should be some filters inside the two nuts. It could just be a bit debris in them that needs cleaning out.

If this is the case, just clean out the filters and put them back in. But if you have been turning the thermostat without the control knob on, you will need to re-calobrate the temperature. You should have the information on how to do this in the instructions that came with the valve (if you kept them).


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[Bubblecraft]

Check out this. Is this the model you have - http://www.taps4less.com/pdf/mira-element-guide.pdf


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[kevinc]

this is as close to it as i could find

 

[kevinc]

Sound think this is the type..... Where do i turn the hot and cold supplies off from,

 

[Bubblecraft]

You should have a cold water gate valve/stopcock where it enters the property. Various places that could be. Under the kitchen sink, toilet etc. Fail on that, it will need to be turned of at the Toby outside your property.

With you having a combi, that should shut off your cold & hot supply.

Depending who fitted your bathroom, you may have isolation valves purely for the shower


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[kevinc]

thanks, Will let you know how it goes

 

[Bubblecraft]

Just mind, if you cannot find the stopcock in the property & require to use the Toby, you'll need a Toby key & 9 times out of 10, if full of crap.


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[kevinc]

turned water off, removed all pieces as per manufactures instructions, both filters spotless......... what do ya recommend next

 

[Bubblecraft]

How old is the shower & do you have any warrantee or a receipt from the supplier?


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[PlumbBobBob]

are you turning it on full power?

 

[kevinc]

the shower would be in 3 years, the builders installed it as it was a new house in a new development!

 

[kevinc]

turning it on full power as in completely anti clockwise?

 

[Bubblecraft]

You should be able to get just a new thermostat from Mira via a plumbers merchant. As your a combi, it shouldn't matter if it is fully open at the mains. If pressure was too low the boiler wouldn't kick in & if it did, the mixer would regulate to suit. If it were non thermostatic with low pressure & boiler came on, it would be too hot, not Luke warm.


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[PlumbBobBob]

yes fully anticlockwise. i was thinking that if it was on too much the boiler wouldn't be heating the water as hot because of the lower temp of mains at this time of year, so turning the flow down to see if water got hotter. just me rambling lol.

 

[kevinc]

i just stripped it right back and was able to operate it hot and cold but when i re built it im havin the same problem, seems as though the controller is bein restricted or is slipping or somethin...will i have to replace the whole piece, how much should the part cost,

 

[kevinc]

ha ha.....Im a spark so im fond of a ramble myself

 

[Bubblecraft]

Well it is a broken thermostat. As I said, goto a plumbers merchant & see if you are able to order just that part. You can also contact Mira direct but they may only distribute the part to a supplier. Price on part can vary & sometimes it can actually be cheaper to buy the whole shower. 136.50 for a new valve online -

http://www.empressbathroomsdirect.co.uk/old-showers-mira-showers-mixer-showers/mira/mira-element-b-valve-only-pd-928.php?pageId=pd&utm_source=Froogle&utm_medium=marketing_medium&utm_campaign=froogle_feed


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[gravytrain]

a good alternative for your spare part is shower doctor.
they are quick and very helpful.

i was replacing a mira 88 cartridge the other day and the new cartridge was faulty, they sent a new one straight away no
quibbling.