MIRA Sport Max problem

johnham · 11 Mar 2007

Just installed a Mira Sport Max 10.8 Kw shower - When switched on, 'High' and 'Medium' settings result in 'Low Flow' light coming on (and staying on) after about 5 secs and water does not heat up. On 'Low' setting, 'Low Flow' light does not come on, but water still does not heat. On all settings, turning heat dial makes no difference, water is still stone cold.
Any ideas on how to solve the problem ?
Thanks

kevplumb · 11 Mar 2007

1st check the inlet filter

On all settings, turning heat dial makes no difference, water is still stone cold.

probably because the low flow cuts the power

johnham · 11 Mar 2007

Thanks - I will do. I have just discovered that I can get the shower to work when the head is low down but when shower head is at certain height the 'Low Flow' comes on again and shower goes cold. Not sure if this indicates any other problem.

Softus · 11 Mar 2007

johnham said:
Any ideas on how to solve the problem?

1. Isolate shower from power and water.
2. Remove water supply pipe from inlet.
3. Turn on water and measure flow rate.
4. If not within the MIs for the product, then find cause and rectify.
5. Else, return the faulty unit to the supplier and get a replacement.

gas4you · 11 Mar 2007

For a shower as powerful as this you will need around 1.5Bar 'working' cold inlet pressure to stop the low pressure safety from cutting in

johnham · 11 Mar 2007

OK....cleaned and replaced inlet filter and problem still there....(I am in a detached 4 year old house) and the manual states minimum maintained inlet pressure of 1bar and minimum static pressure of 0.2 bar to keep flow valve closed. Sorry for being thick but am I likely to be outside these values in a newish house or is that irrelevant here? If it is irrelevant, what is the next thing to check and can I do it myself otherwise I fear the flap of yellow pages winging its way towards me.

Softus · 11 Mar 2007

johnham said:
OK....cleaned and replaced inlet filter and problem still there.

I'm not too surprised.

(I am in a detached 4 year old house) and the manual states minimum maintained inlet pressure of 1bar and minimum static pressure of 0.2 bar to keep flow valve closed. Sorry for being thick but am I likely to be outside these values in a newish house

It's not likely, but it is possible.

...or is that irrelevant here?

The likelihood is irrelevant - only certainly is relevant.

If it is irrelevant, what is the next thing to check

Softus already said:
johnham said:

Any ideas on how to solve the problem?

Click to expand...

1. Isolate shower from power and water.
2. Remove water supply pipe from inlet.
3. Turn on water and measure flow rate.
4. If not within the MIs for the product, then find cause and rectify.
5. Else, return the faulty unit to the supplier and get a replacement.

...and can I do it myself

I don't see why not.

4xpaws · 6 Jan 2008

Softus · 6 Jan 2008

4xpaws said:
Where's the cold feed taken from?

Do you mean today, or back in March 2007?

diynot

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

MIRA Sport Max problem

Similar threads