Way too hot on high setting

Hello,I have a Mira sport air boost 10.4 kw electric shower.The shower is 2 years old and had been working fine until recently.When it is on the high setting and it doesn’t matter where you turn the temp dial,the temp is absolutely scorching and you can’t regulate it. The shower works on the other settings as regards the temp.I have read faq’s and followed advice there but no difference.What could it be ?
Asked 5 years ago by Phil
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 valves are not fully open then there may not be enough water getting to your shower to cool it properly.

The other possibility is a faulty flow/stabilizer valve not allowing the correct amount of water into the shower.


There is a link below that explains the above.

www.youtube.com/watch?v=m0xrObqfGqg

Answered 5 years ago by Barrie Seabright

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