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Rank 1
May 5, 2024

Storage Heater and hot water not working even after Smart Meter installed

  • May 5, 2024
  • 15 replies
  • 2897 views

I am writing to urgently address an ongoing issue with the heating and hot water in my recently moved apartment.

Upon moving in, I discovered that both the storage heaters and the immersion element to heat up the water in the cylinder tank were not functioning. After consulting with my electrician, it was determined that the problem likely stemmed from a malfunctioning off-peak timer switch.

In response to this issue, OVO sent an engineer to replace the entire meter box last Friday evening (3rd May). While the engineer assured me that this replacement would resolve the problem, unfortunately, the heating and hot water systems are still not operational.

Despite assurances of a follow-up visit by another engineer the next morning, no technician arrived to check on the situation or make any necessary adjustments. As a result, my family and I have been without heating or hot water for the past six days.

Pinned Reply By Firedog

Updated on 09/06/25 by Ben_OVO

Brilliant - just what the doctor ordered. This snippet shows the state of the two switches in the meter:
  

  
Switch ı should be always closed (o¯o); it controls the power to the tail labelled 4, for everything not on the offpeak circuit. Switch ıı is the one for heating, closed only during offpeak hours. This is the Auxiliary Load Control Switch (ALCS), governing power to tail 5.  

You seem to be in the West Midlands (WMEB) region, so your offpeak hours are 00:00-07:00 GMT, i.e. 01:00-08:00 BST. You can tell if the ALCS is working by checking switch ıı before 8AM tomorrow, when it shouldn’t be open. What does show there depends on how the engineer wired things up; it might show a closed switch (like switch ı) or something like LC1 or even LC1 LC2. So long as it’s not open, you’re up and running. If it is open, you have the same problem as many other customers before you (including me!) and the magic ECAUL request will fix it at the flick of a switch in Bristol. 

Best of luck!

If you’re experiencing this issue then you may need to contact our Support Team and request they ask our Smart Support team to send the ECAUL command to update the ALCS configuration. You can find more helpful info about this issue in this previous Forum topic:

 

 

15 replies

Firedog
Super User
Super User
May 7, 2024

That’s good news, at least in part.

We had a similar case recently where the meter was apparently working as designed after the smart team had done their ECAUL magic, but the heating circuits were still not active when they should be. It turned out that someone - suspicion fell on the installing engineer - had been a bit heavy-handed with the cable from the meter to the consumer unit for the offpeak circuits, and it had become disconnected at the CU. The customer’s own electrician was able to reconnect it in a matter of minutes and the heating started to work again that night. 

 

[EDIT a few minutes later to add:]

It’s not straightforward for the installer to check that the offpeak circuits are working properly unless he’s there during the night. He should have checked that the connection was continuous to the CU, but he might have missed that bit.

@Abby_OVO It could perhaps be standard procedure for the engineer to activate the boost function in the meter briefly just to make sure that the circuit was live. 

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. |
AsandaWAuthor
Rank 1
May 7, 2024

In my case, the hot water supply resumed using the off-peak supply after resetting the control unit at the hot water cylinder. Additionally, the meter is running during the off-peak period. @Firedog , do you think it's still possible that the heating circuits were not yet active?

@Abby_OVO , could you please confirm if a full investigation will still be conducted on this matter?

Firedog
Super User
Super User
May 7, 2024

… do you think it's still possible that the heating circuits were not yet active?

 

Now that the meter is working as designed, OVO’s part is finished. Any remaining problems are for your electrician to sort out. If there are additional controls on the heaters themselves, these may need resetting after a period of no power.   
 

... could you please confirm if a full investigation will still be conducted on this matter?

 

I can’t speak for Abby, but I can’t imagine that any sort of investigation will take place. If the ALCS was not configured on installation, then this is a known problem with a known workaround. The solution (getting the engineer’s app to report the ALCS status properly) is clearly taking time to be implemented. It’s unpleasant for those subjected to it, but all’s well that ends well. Let’s hope your electrician can sort out your heaters quickly - it’s lucky we’ve had a warm spell for the past few days, so your home won’t have been unbearably cold.

 

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. |
Blastoise186
Super User
Super User
May 8, 2024

I can verify this. It’s not worth doing a deep dive or full investigation for minor issues that can be fixed with a single SMETS Command such as ECAUL/ALCS stuff. The resources required just can’t be justified for that.

If a ton of meters were randomly exploding however, that would definitely get one because it’d be a safety concern.

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!
Abby_OVO
Community Manager
Community Manager
May 8, 2024

Hey @AsandaW 

 

As our volunteers have already mentioned, an investigation now would be unlikely as they’ve explained, but I’ll also have Forum_Support double check this to be sure.

 

Hopefully an electrician can sort the storage heaters out and everything will be as normal.

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