[bikeman]

Hi

A few months ago (31 dec) my IHD stopped recording the previous days gas usage.

It displays current days use, previous week and previous month for both elec and gas but only previous days for elec.

I tried unplugging and turning it off and I also tried running the battery down to zero.

EON cust svces couldnt help.

Anyone else have this issue?

[geoffers]

@bikeman - yes, same here.🤔I'd not spotted it, but another user @Gwyndy had reported it, so I checked mine and have been monitoring the issue as detailed here https://community.eonnext.com/thread...ll=1#post69542

I thought it was probably just an odd one-off, but maybe it's a bit more of a global issue. I expect that not many people pay attention to their IHD and won't have noticed it 🥴

BTW - the values are actually computed on the meter - the IHD just displays the meter's values

The SMETS2 spec states what accumulated values are to be generated by the meter - these computed totals are for the electricity meter (ESME)



So if you scroll through your day/week/month usage for electricity on the IHD you'll see the values equate to these values created on the meter itself.

The same will be the case for the gas readings (which will actually be done by the gas proxy on the comms hub not the meter itself, but that's another story) - the comms hub spec actually shows this for the gas proxy function (GPF)

[bikeman]

Thanks for your reply. So what your saying is the meter calculates the values, so it is the meter that is at fault.

It must have broken when an update was rolled out. Maybe the next meter update will fix it.

[geoffers]

@bikeman - essentially, YES 👍However the gas meter works slightly differently since it's powered by a battery. So to conserve battery it only wakes up every ½ hour and sends a reading to the Comms Hub (with the flashing lights, on top of your elec.meter) and the calculations must happen there.

The Comms Hub contains a "virtual" gas meter data store called the Gas Proxy, so the values will be calculated there and sent to your IHD over the Home Area Network (HAN)

Looking at the details on my other post my IHD was showing mainly zero daily values, then a couple of weeks ago all the daily ones seemed to have been recalculated. I followed the process for a week and at 23:09 the current daily value was correct, but at 23:10 it got reset and only showed the ½ hour consumption for the period from 22:30 which was mostly zero (at the weekend the heating was on later so these were readings of 0.94 & 0.52 kWh for that half hour)

So these are the values which now get displayed for the previous 8-days readings - don't know how long this has been happening but clearly something is amiss with the firmware which does these calculations

[Gwyndy]

@bikeman The issue is that the gas meter readings are time displaced by one hour. This relates to clock change at the end of October. I first encountered this problem in 2022 / 2023 and it took months of arguing with Eon before they acknowledged that there was a problem. The customer service people kept telling me that there was nothing wrong and that the IHD was faulty. It reached the point where they refused to discuss the matter further unless I bought a new IHD.

I eventually bought an iVie Bud and, lo and behold, it displayed exactly the same incorrect data as the original unit. At that point Eon did some further investigation work, sent some 'commands' to the meter and everything was fine. (I did refer the matter to the Ombudsman and I did 'win' but only on the basis that Eon did not follow the complaints procedure correctly. The Ombudsman would not get involved in the performance of the IHD.)

Roll on on a couple of years and I've had the same issue once again. I have had seemingly endless WhatsApp chats with Eon and again been told that there is nothing that they could do. Not one to give up, I persisted and eventually they corrected the problem.

I suspect that this is an industry-wide issue and that the energy companies, certainly Eon, rely on people accepting that the matter cannot be corrected.

If the daily readings are important to you, don't give up with Eon! You can refer them to the thread on which I have discussed this with @geoffers - I think that he has posted the link above.

[geoffers]

Originally Posted by Gwyndy

..The customer service people kept telling me that there was nothing wrong and that the IHD was faulty....The Ombudsman would not get involved in the performance of the IHD...

It's a shame that even the supplier's Customer Service have no understanding of how meter/IHD displays work -> the issue has nothing to do with the IHD being faulty, but everything to do with the data on the meter (in this case the "gas Proxy" in the Comms Hub) being calculated incorrectly.

I'm waiting to see if it is actually anything to do with the hour's offset when the clocks change on Sunday, since my Gas Proxy/IHD daily usage went from

• being unpopulated a couple of weeks ago,
• then mysteriously became populated correctly a week or so ago,
• the current days usage is correctly displayed until the day is reset, which happens about 23:09 GMT
• then as that week progressed the values gradually got overwritten by the current day's 22:30 reading (which was mainly zero, but occasionally had a consumption value for this ½ hour ToU reading if any gas was actually used in that period - for me this is only at the weekend)

As you can see, on Fri 13 March, all the daily values were correctly populated, but when I started monitoring in detail from Monday 16 March the values were getting overwritten by the new incorrect value

[bikeman]

My IHT stopped working on 31 Dec 2025. No problem with the clocks changing in Oct. We will see what happens this sunday when they change again.
@Gwyndy What did EON do to fix your IHT?

[Gwyndy]

Originally Posted by bikeman

What did EON do to fix your IHT?

They sent some reset commands to the meter a few days ago and the IHD corrected overnight. The historical daily gas usage was progressively replaced with correct values when compared to the iVie app data which gets the values from the data centre.

I am being a bit pedantic, I guess, as I can see the correct data in the app but there is no point in people having an IHD linked to their meters if it doesn't give reasonably accurate information for the non-technically minded consumer.

[geoffers]

@Gwyndy , @bikeman - I think this is how the daily history "bug" actually happens. I checked when the current day's and the previous days' values actually get shifted in the 8-day history, so there are 2 time based events happening

• As noted before, at around 23:09 the current-day's register gets reset and contains the 22:30-23:00 reading
• The current-day register continues to increment with ½ hourly readings, but since the heating's off at night will not move again until the morning
• After midnight the day-1 thru day-8 get shifted right with the last one dropped, and the (incorrect) current-day register is copied to the day-1 register, so that day's history shows zero/extremely low value
• As the week progresses this propagates until all 8 historic values are zero/low
• However, this still doesn't explain how my daily history registers somehow re-populated themselves mid March

There's every chance that the same sequence will continue after the clocks change (but would be seen an hour later as local time will now be BST).

However you would hope that the register shift may somehow happen at midnight, with the current-day register being reset after this so the history will be retained.

Most people wouldn't see a bug in the summer as the daily gas usage will be zero anyway

[meldrewreborn]

@geoffers

you are certainly onto something here. Do you think it’s a particular type of meter or comms hub at fault or a widespread matter? Is the pulling of data from the meter to the comms hub automatic or is the DCC involved? I’m not expecting you to have answers but there are a lot of issues in this. I find bright to be very good at displaying gas consumption data, but sometimes one or more elements (30 min, hour, day, week, month or year) are missing while others covering the same time period are there . The specifications have been around for years and are thus mature so it’s incredibly disappointing to see that IHDs don’t display reliable data. Given the higher proportion of gas meters that are dumb compared to their electricity counterparts could battery conservation be root of the problems? My own meter is less than 18 months old so it’s unlikely that battery issues are behind my observed Bright issue (which I mention only because it’s been noted rather than being something of great import) but who knows?