Temp variation and unable to stop

I have a Mira Standard shower, and have replaced the flow valve and the pcb recently (Thanks for teh advice so far), however, the temperature still varies from hot to cold. Listening carefully, a switching can be heard just before the temp change occurs.

Also left runnning for 3 or 4 minutes and then it is unable to switch it off at the shower, and the override switch has to be used.



After changing the pcb, would the failure to press the flow valve to purge the heater element cause this, or is there something else as well ?



Many Thanks in advance
Asked 12 years ago by Anonymous

Sounds like you may have a water flow / pressure problem.

 

The things to check first are.

1 That the main valve coming into your house is fully open.

2 Then check that the valve on the line to the shower is fully open.

If these are OK then you could give your local water authority a ring and ask them what your water pressure should be, they will probably say that the supply a minimum of 1bar (the minimum required to operate a shower)however press them and ask what it is likely to be first thing in the morning (when everybody is showering)

 

They could have the pressure turned down because they are working on the main, or because there is a burst pipe some where and they have turned the pressure down to try to save water, or the pressure maybe low just because there is a burst pipe somewhere, that hasn’t been discovered yet!

 


Answered 12 years ago by The Shower Doctor

View Spares and Order Parts:

Do you need any additional help to find the correct spare part?

Please click the following link if you would like to see other answers or ask a question regarding the Mira Advance Standard - post 1995 - Shower Spares

If you've landed here and this question is not about your specific product, please take a look at these similar items on our Mira Electric Showers Spares page. Alternatively, if you're looking for any other brands you should view our full range of Shower Spares.

If you do not want to proceed with a repair or you want to buy this item or similar, please consider one of our Replacement Mira Electric Showers

For any other support request please get in touch.