Bristan Bliss 9.5 Electric Shower

[constructioncapitallimite]

Dear Experts,

No one seems to know the answer to this problem! Asked Bristan and PTS.

I have 4 bathrooms. 3 showers are Bristan Joy Eelctric Showers heating up cold water, simple no problem. 4th Bathroom seems cursed. Bristan Joy failed keeps going from hot down to cold. Replaced with Joy same thing. Replaced with Bliss same thing. Engineer from Bristans thinks its the water system. Yet on 3 showers no problem. 4th bathroom only on top floor. Gravity water system. Cold supply.

What causes new machine out of box to oscillate from hot to cold 46 down to 5 while having shower not touching machine?

Correct answer that fixes the problem gets paid.

James de Rin

 

[Agile]

Quite obviously because you have insufficient water supply pressure!

Connect it to the mains and it will be fine!

I am surprised the Bristan peoiple did not work that one out! Or perhaps you did not tell him it was gravity fed from just a few feet above?

Tony

 

[Agile]

Dear Experts,

No one seems to know the answer to this problem! Asked Bristan and PTS.

Why do you expect a spotty counter hand in a merchants with three poor GCSE passes will know anything about plumbing?

If he was a bit more clever he would be a plumber!

 

[constructioncapitallimite]

Quite obviously because you have insufficient water supply pressure!

Connect it to the mains and it will be fine!

I am surprised the Bristan peoiple did not work that one out! Or perhaps you did not tell him it was gravity fed from just a few feet above?

Tony

The Bristan engineer merely replaced a machine that was oscillating from hot to cold. Nothing has changed it worked before. All 4 showers worked. Now one doesn't. Same plumbing different shower box. But I ask the plumber who put in water pipes if anything has changed?

 

[constructioncapitallimite]

Quite obviously because you have insufficient water supply pressure!

Connect it to the mains and it will be fine!

I am surprised the Bristan peoiple did not work that one out! Or perhaps you did not tell him it was gravity fed from just a few feet above?

Tony

The Bristan engineer merely replaced a machine that was oscillating from hot to cold. Nothing has changed it worked before. All 4 showers worked. Now one doesn't. Same plumbing different shower box. But I ask the plumber who put in water pipes if anything has changed?

It is on the water mains not on gravity, but it is shower 4 furthest from the mains.

 

[doitall]

Dear Experts,

Engineer from Bristans thinks its the water system. Yet on 3 showers no problem. 4th bathroom only on top floor. Gravity water system. Cold supply.

Correct answer that fixes the problem gets paid.

James de Rin

So is it gravity or not.

Sounds like a typical landlord. Cash up front I think.

 

[constructioncapitallimite]

Dear Experts,

Engineer from Bristans thinks its the water system. Yet on 3 showers no problem. 4th bathroom only on top floor. Gravity water system. Cold supply.

Correct answer that fixes the problem gets paid.

James de Rin

So is it gravity or not.

Sounds like a typical landlord. Cash up front I think.

It is not gravity it is mains. There is a gravity system for the central heating. And I am not a typical landlord. I pay all my bills but this problem has me stumped. The Bristan Bliss box is saying low water pressure. But the shower right next door six feet away works fine.

 

[seco services]

Did you change complete unit and showerhead/hose ?

 

[constructioncapitallimite]

Did you change complete unit and showerhead/hose ?

Yes the Bristan Engineer did that this morning.

 

[Agile]

We can only advise you based on what you tell us!

If that is incorrect then we will give you incorrect answers! My reply was correct based on the information you gave us!

So what does this Bristan engineer say?

How does he explain that he does not know what the problem is?

Tony

 

[constructioncapitallimite]

We can only advise you based on what you tell us!

If that is incorrect then we will give you incorrect answers!

So what does this Bristan engineer say?

How does he explain that he does not know what the problem si?

Tony

sorry I made a mistake earlier.

By changing the box three times he insists it must be the water pressure and not Bristan. I have been reading the instructions and I think it is the TCD kicking in. When you set the shower to hot say 49/50 and after 6 -8 minutes you hear a click and it goes cold. This maybe the TCD kicking in not the water pressure.

The water coming in is very cold and maybe the box cannot be run to hot. But yet again it doesn't explain why the other three showers still work. It is the furthest from the mains by six feet.

James

 

[Agile]

If no other shower is working then how does it perform?

Did this Bristan engineer measure the dynamic supply pressure WHEN the others are being used?

Tony

 

[alan999]

If the showers are externally piped you could swap the one that is not working with one that is. This should help you eliminate whether or not it is the shower at fault or the plumbing.
If you're lucky you might find they both start working.
Of course if you're unlucky....

 

[cozzmic]

O/H stat cutting off the power. Probably caused by insufficient flow also I take you are saying 49-50'C temp which is way too hot for a shower. Max recommended is 41'C if it is a blended shower an electric would be about the same.
The instructions might say what temp the thermal trip cuts the element power off.