Water not heating up on redring expressions 500 8.5 kw?

Thanks, Stewart W, I was sceptical but removing the cylinder and pressing gently up until it clicked worked. I'm not a plumber but from research believe this resets the Thermal Cut-Out Valve and solved my 'Overheat' light stuck on with cold water.

Will Goodfellow
April 2020

Omg it worked.i was about to call someone.thanks Stewart W!!!

Saranas
September 2016

Can you give me advice, shower is cold no hot water, do i need a new thermostat or shower.

roberta marie
February 2014

Hi this fix worked for me. Could you tell me what part I need to replace and would it be a DIY job.

Cheers

Colin
September 2013

shower heating again, thanks for the help.

Kc.
August 2013

Worked for me but is this just a temp fix?

Rez
July 2013

Shower now works, thanks

Mark
March 2013

This worked first time and did not repeat.

Andy Horne
February 2013

fantastic
the last post did it first time thanks

phil
September 2010

correct the overheat light is on

garry
August 2010

You can also get the part to replace £40 includes labour

Thomas
January 2009

P.S. Having re-read my explanation, when I say remove the outer casing I mean on the shower, not on the fuse box. :D

Stewart W
September 2008

Turn off your electricity at the fuse box.

Locate and unscrew the housing screws on the top and bottom of the outer casing.

Pull the front of the casing away and place somewhere safe.

On the inside you should see a copper-ish coloured drum with lots of wires attached to it located towards the left hand side of the box. There should also be a thin flat silver plate attached to the top with small nuts.

Take a small spanner and remove the nuts. Keep these safe.

Now, the thin flat silver plate should lift out revealing a 1cm-ish deep cylinder which is recessed into the cooper coloured barrel.

Place your finger under the cylinder and press gently, you should hear a quiet 'click'.

Now, starting with the nuts, put everything back together making sure you don't remove anything else or forget anything.

Once the casing is back on turn your electricity back on at the fuse box and test the shower - if you've done it correctly the shower should work perfectly.

This problem will reoccur and you will have to repeat this proceedure. Worst thing is, when it's usually time to take a shower (in the morning before work) this is usually when you won't have time to do this.

Best bet, get a new shower.

Stewart W
September 2008