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November 8, 2024
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After smart meter installation - Off Peak storage heaters tripping lights, appliances etc.

  • November 8, 2024
  • 30 replies
  • 1316 views

My smart meter was fitted on 31/05/2024.  I never had a problem with my electricity before then.

My off peak storage heaters were off for the summer.  My immersion heater was still in use. It is on Off Peak tariff & has a Horstman Timer (it comes on between (3 am & 6 am). It is still in use & never been a problem. The immersion heater night rate KW hours are showing on meter readings on my account.

In early October, I put on the storage heating.  

When the off peak for the storage heaters came on at about 12.10 B.S.T. - It tripped all the lights, appliances, TV etc. in the house.

The consumer box could not be reset to turn Lights, appliances etc., until the storage heaters were switched off at the switches in each room.

My electrician has tested my electric system fully over days & weeks and still there is a problem.  His belief is there is a problem with the meter either a switch  or wiring in the meter.

I keep getting fobbed off by customer services & they have asked me to get a plumber to look at the Immersion heater.

 

 

 

Best answer by Lukepeniket_OVO

Updated on 05/12/25 by Abby_OVO

 

I am now 99% certain the metering installation is wired wrong, I've zoomed in. 

 

Black cable far right looks like a neutral which is connected to the 5th terminal... I believe that black cable should be in the neutral block and the small red cable for left should be moved to fsr right hand side.

 

Surely some sort of emergency visit due to no heating or hot water needs to happen??? 

 

Are you on Facebook? I would search for thr group 'Facebook group energy support and advice UK' and find the admin Gemma Hatvani. 

 

Basically she's a god, she's unaffiliated with any supplier but has a hotline to most of then to get issues sorted out!! Saves waiting 3 more weeks for supplier and then going to Ofgem, worth a go.

30 replies

Firedog
Super User
Super User
November 11, 2024

Just to be sure: each storage heater has two feeds. One of them is switched. i.e. only live during offpeak times. The other is always live, on the constant circuit, to power the heater controls and the fans that push warm air out, and a boost if the heater runs out of steam. It would be worth checking the constant feeds too, by leaving them off before the switched circuit powers up. There could be some crossover in one of the heaters.

 

Noel | I have no official status; I'm just a volunteer who comes here to help other customers. My gear: Aclara SGM 1416-B Electricity-only E7 meter; Chameleon IHD3-PPMID-AAA | It may look as if I know what I’m talking about, but don’t let that fool you. |
GiffyAuthor
Rank 2
November 11, 2024

@BPLightlog  & @Firedog 

As requested, ar 11.10pm the Off peak came on and tripped the daily electricity i.e lamps etc.. I put the 3 radiators on at the switched sockets I attached photos. I had to switch off the off-peak radiator to get normal lights etc.

Also, I put one radiator on at the switched socket & it tripped the daily electricity.

Thanks

GiffyAuthor
Rank 2
November 13, 2024

@Firedog @BPLightlog @Chris_OVO 

Do you think  a dumb meter  installation would be an option for me. ?  I do not mind reading the meter. 

Thanks

Firedog
Super User
Super User
November 14, 2024

​​​Do you think  a dumb meter  installation would be an option for me. ? 
 

No! For a start, there’s no such animal these days. No-one makes non-smart domestic meters, and suppliers don’t have any. Second, you have a fault somewhere in your electricity installation. It might be as BP suggests just an undersized breaker*, but it might be something else, and you have to find out what it is. 

When your electrician returns, see if you can work out between you how to access the Boost function on the meter. It’s described in the meter manual, but the menu option (§13.7) doesn’t seem to be shown in the graphic provided (§13.1). Once he’s found it, he can use it to activate the switched load, so he can trace the fault when it happens. Be sure to tell him what the DNO engineer found - that there was nothing obviously wrong with the meter once he’d removed its terminal cover. Any fault (e.g. overcurrent) occurring in the meter itself would trigger an alert sent back to OVO’s monitoring team, and that clearly hasn’t happened.

 

*  Your electrician might have a 100mA RCBO in his van that he could perhaps quite easily swap for the 30mA RCCB just to rule that out.

Noel | I have no official status; I'm just a volunteer who comes here to help other customers. My gear: Aclara SGM 1416-B Electricity-only E7 meter; Chameleon IHD3-PPMID-AAA | It may look as if I know what I’m talking about, but don’t let that fool you. |
Chris_OVO
Community Manager
Community Manager
November 14, 2024

Hey @Giffy

 

I’ll just echo @Firedog in saying that all meters are currently made with smart functionality built in. I’ll tag @Lukepeniket_OVO who can hopefully take a look at this from an engineers perspective and give us some advice. 

Renewable energy jokes never get old.
GiffyAuthor
Rank 2
November 14, 2024

@Firedog ​@Chris_OVO 

Thank you - I will pass this on & let you know what happens. 

 

OVO Engineer
November 17, 2024

Hey all did we get this one sorted?

 

Storage heaters are new so likelihood is we can discount any of them going faulty.

 

There is an imbalance across the rcd causing it to trip.

 

Is there any other heritage installs in that Meyer cupboard you could send a photo to us of? 

 

Cheers

OVO Operations Excellence Manager and Former Field Operations Team Leader
Blastoise186
Super User
Super User
November 17, 2024

It looks like there’s also some more… Immediate… Problems here…

Like the exposed yellow wire? Or the invisible anti-tamper cover on a meter?

Securing energy by zapping security bugs... For that is The Blastoise Way! Remember, I'm just like you - AI Powered Evil Geniuses aren't Staff!
GiffyAuthor
Rank 2
November 17, 2024

@Lukepeniket_OVO 

It still is not sorted.

I enclose a phot from the cupboard for a shower fitted 5 years ago.

 

GiffyAuthor
Rank 2
November 17, 2024

@Blastoise186 

The photo was taken by the DNO when the cover was off to get a clearer picture.

Thanks