New brushes, new pump or new shower?

[HumanAstronomer3194]

I have a Mira Elite QT electric shower and while it's working fine there is noise coming from it that doesn't sound too healthy.

As you can hear from the below video there is a loud screech when the shower is turned on

ShowerNoise.mp4

• HumanAstronomer3194
• 28 Dec 2024

I had a look at the brushes and while there is a fair bit of use I don't think the sound is coming from having shorter brushes.

ShowerBrushes.mp4

• HumanAstronomer3194
• 28 Dec 2024

I think it might be the bearings rather than the brushes which would mean a new pump.

I'm debating on should I replace the brushes to see if it makes a difference or should I go for a new pump but if I'm replacing the pump should I just spend more to get a new shower which is like for like?

New brushes are €25
New pump is €150 https://theshowerdoctors.ie/product/mira-elite-qt-parts-and-spares/
New shower is €280 https://theshowerdoctors.ie/product/mira-elite-se/

However this shower doesn't have the best reviews on ScrewFix https://www.screwfix.ie/p/mira-elite-se-white-chrome-9-8kw-silent-pumped-electric-shower/222jx

Also trying to figure out if the new shower (SE) would be less powerful than the old one (QT).

 

[Wayners]

I think for £160 you can get it fixed plus 12 months warranty covering further breakdowns and parts.
You need to check that though.
Maybe another option

 

[trojanhawrs]

If not I don't think I'd risk spending that on a replacement pump for an old unit. You could get another pumped shower or install a standalone pump and standard electric shower, might not be much difference in price depending on pipe access.
I'll also mention that looks to be a 6mm supply cable which I'd almost guarantee is undersized for that size of shower