Shower running too hot

[Fishingsmurf]

Evening all !

I am sure I am missing something really obvious here, but....

We have a Gainsborough electric shower in the main bathroom that runs way too hot with a shower head attached. Remove the shower head, and run the shower with just the hose attached, it works fine. I have tried numerous shower-heads, checking before buying that they are suitable for electric showers, but they make no difference. The shower is about 10 years old, and didn't do this to start with, but this has been the case for the last couple of years.....only found out recently though!

We live in a hard water area, but a second shower, a Triton, does not have this problem. I'm very tempted to increase the size of the holes on one of the showerheads by using a pin or something as it is almost like every one we try is reducing the water flow too much.

Any thoughts most appreciated !
Paul

 

[HERTS P&D]

SECO WHERE ARE YOU?

This ones yours!

Andy

 

[seco services]

SECO WHERE ARE YOU?

This ones yours!

Andy

Thanks Andy.

 

[seco services]

Descale the head over night in a descaler or white vinegar.
The heads scaled causing the flow through the shower to reduce so becoming hotter.
You've proved the fault yourself by it working with head removed.

Trouble with chopping/changing head is they don't always work on different showers, the cheap brands are the worst for this ie bq etc and will cause the tco or the prd to activate as they can resrict the flow to much.
I always try to stick with a top brand head or the head made for that shower.

What Gainsborough is it, model ?

 

[Fishingsmurf]

It is a Gainsborough Energy 1000+.

We've tried the descaling route and whilst it makes a slight difference, it still runs too hot.

I think you may have come close to an answer though, I need to look at showerheads that have larger holes, as this will increase the water flow. This was why I had thought about just enlarging the holes on the current showerhead.

Cheers!
Paul

 

[seco services]

We've tried the descaling route and whilst it makes a slight difference, it still runs too hot.

That tells me it hasn't been a fully successful job.

I think you may have come close to an answer though, I need to look at showerheads that have larger holes, as this will increase the water flow. This was why I had thought about just enlarging the holes on the current showerhead.

Enlarging the holes can bugger up the spray pattern altogether.
I see if i can find the part number from the proper head for it.