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Electric shower -impared flow.


SparkyJack
Resolved

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Is the the right place for this? Perhaps we could have a DIY- General page to Ask if we here have resolved a problem - saves a lot of Googling.

Any way here goes - my daughter reported that her Electric shower has diminished flow which I deduced a coked boiler/heater. How does one clean it? I did say introduce a de-scale solution - but how? Any one done it?

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userious?

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You dont say how old it is, these things dont last forever, perhaps its time to renew.

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woodchip

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Shower units have there own boiler system its a heatexchanger as in a PC but Water, In hard water area the exchanger gets furred up with lime this will burn out the heater element as it is getting hotter than it should. Fit a Magnet type scaler to you mains input near to the stop cock. Some Exchanger Units can be Cleaned but it would be cheaper and more effective to fit a new one and protect it as above

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oresome

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With an electric shower, the flow rate determines the temperature.

If the flow rate has reduced, the temperature must have risen, given the same incoming water temperature and electricity input.

At this time of year, the incoming water temperature is higher than in winter and the flow rate from an electric shower is normally much improved.

The heating often comprises two discrete elements.........it may be that one of them has failed, reducing the electricity input. The flow then has to be reduced by the user to achieve the same output temperature.

Sadly, in general plumbers know as much about electricity as electricians know about plumbing.

The major shower manufacturers have their own service engineers who will be clued up on both disciplines and carry spares for their products.

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onionskin

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Chances are it's just a blocked shower head, even in soft water areas they get gunged up.

They usually come with a tool to unscrew the spray plate - if you don't have one a pair of dividers is a good substitute, open them up, insert the points into opposing holes and unscrew the plate. Clean the back of the spray plate with a toothbrush and replace.

Alternatively, get a new head from B&Q, they are interchangable and just unscrew from the hose. The ones with the little rubber nozzles are supposedly self cleaning.

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Bingalau

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Get a fully qualified plumber in.

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SparkyJack

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My goodness thats quick Bingaleu Just finished looking up the Wallander totty Lena Endre- whilst the iron warms.

This is in fact what she will do tomorrow at my earlier suggestion and ask hime to contact me also with another problem I have. But you never know there may a simple solution [in a bottle perhaps :-}]

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Forum Editor

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If it's an instant electric shower - one that heats water from the mains - the problem may be a faulty flow valve inside the shower unit. It may also be heavy scaling inside the heating unit.

Neither of those is something you can fix yourself, so you'll need to get a shower engineer to do the work. Do not attempt to do any maintenance work inside the unit yourself.

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lotvic

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Shower: Electric + water + human under it = Get a fully qualified plumber in

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buteman

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Or maybe cheaper getting a new shower.

It normally works off the cold water mains so maybe the water company has reduced the water pressure while repairs are being carried out.

I find the water pressure drops during winter months to avoid damage to the mains.

So you get a slower flow from the shower and better flow in the summer.

Well that's my theory anyway.

Electric shower you can buy spare parts from the makers,if the unit is old the chances are that there will be no spares so cheaper to buy a new unit.

Electric showers have nothing to do with your hot water boiler so you can rule that out.

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Forum Editor

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"I find the water pressure drops during winter months to avoid damage to the mains."

That's not the case. Water companies have a statutory obligation to maintain specific pressures on mains water - lots of equipment relies on water being delivered at specific minimum pressures for its efficient operation. The minimum allowed is 1 bar, although many household appliances will work if the pressure is lower. Most washing machines will work on 0.5 bar for instance.

Mains pressure can rise slightly during the night, as less is drawn off for domestic use.

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