Mixer shower not hot enough anymore

houstonwehaveaproblem · 9 Jan 2021

Triton mixer shower, non bar type is no longer hot even on full temp setting.

Any ideas what could be the issue.

I can’t seem how to even get the parts off to take a look.

CBW · 9 Jan 2021

Try without hose/head attached first.

houstonwehaveaproblem · 9 Jan 2021

Chris_W said:
Try without hose/head attached first.

sorry forgot to say I took the head off and it’s the same

CBW · 9 Jan 2021

houstonwehaveaproblem said:
sorry forgot to say I took the head off and it’s the same

And the hose?

houstonwehaveaproblem · 9 Jan 2021

Chris_W said:
And the hose?

only the head

CBW · 9 Jan 2021

Then try without the hose, it may be collapsed internally. If this works, then possible thermostat failure.

houstonwehaveaproblem · 9 Jan 2021

Chris_W said:
Then try without the hose, it may be collapsed internally. If this works, then possible thermostat failure.

collapsed?

Madrab · 9 Jan 2021

Thermostatic shower? Filters may need cleaned. Worst case the thermo cartridge could be going. Hot water everywhere else ok?

Will probably need stripped and checked.

HERTS P&D · 9 Jan 2021

Chris_W said:
Then try without the hose, it may be collapsed internally. If this works, then possible thermostat failure.

Yes, Chris is correct. I have been to many twisted shower hoses.

Andy

houstonwehaveaproblem · 9 Jan 2021

Ok will check

Madrab said:
Thermostatic shower? Filters may need cleaned. Worst case the thermo cartridge could be going. Hot water everywhere else ok?

Will probably need stripped and checked.

All other hot water is fine

houstonwehaveaproblem · 10 Jan 2021

Ok took the hose off. Looks ok.

Turned the shower on. Kicked out boiling hot after a few seconds then went to warm and stayed like that

Madrab · 10 Jan 2021

Thermo cartridge .... as suggested, check the filters first and then the cartridge

houstonwehaveaproblem · 10 Jan 2021

Madrab said:
Thermo cartridge .... as suggested, check the filters first and then the cartridge

Thanks

I can’t seem to get the shower mixer apart. It’s a non bar type one

Mr.B · 10 Jan 2021

I have to clean the stainless steel mesh inlet filters on my Mira Excel thermostatic mixer maybe once a year.
Build up of slimy, jelly like stuff ... not much, but enough to slow down the supply of hot water. After cleaning them it feels like a new shower.

It does mean isolating hot and cold supplies, taking off the various plastic bits and bobs, removing securing screws and withdrawing the cartridge completely. cleaning the filters with a toothbrush, greasing the O rings and replacing everything in the right order (and getting cartridge back the right way up too).

But a plumber would charge quite a bit I imagine so if you can do it yourself you'd save a bit.

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Mixer shower not hot enough anymore

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