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Electric Water Heating Tank.

Posted by Jaguar77-285762 - Created: 6 years ago
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9 replies (Showing replies: 1 to 9)

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Posted by stuart06-195098 - 6 years ago

"We are going out for the day next week so will switch electric off before we go"

Do have a fridge and/or freezer?

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Posted by ChB-184121 - 6 years ago

Some buildings have a dual power supply, and your bill would be split into cheap rate (HC) and full rate (HP) and you can set your boiler to only come on at night to take advantage of the cheap rate. also you can set washing machines, dishwashers etc to run on the cheap circuit. You would then have a switch to be able to also run it during the day next to the timer, in case you suddenly need extra hot water.

If you only have one power supply now, the power is the same price day or night so you can have the boiler heat up when you want.

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Posted by Jaguar77-285762 - 6 years ago

Thank you all so much for your help. We are going out for the day next week so will switch electric off before we go and then see what happens. Before we have always had a switch on the fuse box which had three positions allowing us to heat the water in the night but we do not seem to have any switch or control on this at all.

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Posted by ChB-184121 - 6 years ago

As Stuart has said, the little light is powered from the PCB in the circuitry of the cumulus. it could well stay on for a few hours without external power. The flashing and colour is supposed to tell you what has been going on. If the breakers are not labled, then you will have to turn each one off and see what stops working until you find one that doesn't do anything. You can also see the speed the meter is turning to see if you are consuming anything when all the breakers are off. leave as many off as you can overnight and see if the light has gone off in the morning. Once the light has gone out, you can slowly turn on each one in turn until the boiler comes back online, then Mark it. If it doesn't ever go out, you have free electricity, so leave it on!

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Posted by GAnthony - 6 years ago

Jaguar, please don't worry about the little green light. Most good water heaters have a facility to try to reduce the amount of calcium build-up on the inside of the tank. To do this they supply a small current across the tank, and they have a little green flashing light just to show you they are working. When the mains are off, this tiny current is supplied by a battery. Thus the flashing light will remain until the internal battery is exhausted. You should find on your electric board, a circuit breaker or fuse that supplies power to the hot water tank. However, if you turn off power to the whole house, you will certainly turn off power to the tank. No need to worry about turning off the power in the street. Remember, even with the power turned off, the little green light will continue to flash for a while at least. Hope this helps. Good luck.

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Posted by stuart06-195098 - 6 years ago

"if we have shut our mains power supply switch off shouldn't that be enough to put the light out"

No.

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Posted by Jaguar77-285762 - 6 years ago

Thank you for replying. Not very knowledgable on the subject but if we have shut our mains power supply switch off shouldn't that be enough to put the light out. How would we switch power off in street, would it mean getting electric company in?

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Posted by Floridian-312987 - 6 years ago

You had electricians come to the house, actually paid somebody and they did not take out their meter and check? Nice.

You can always shut the whole power supply off on the street.

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Posted by stuart06-195098 - 6 years ago

The LED is independantly powered by the cumulus's integrated circuitry.