[Billjratt]

smart meter installed Dec '24, off-peak electric comes on from 23.00 to 24.00 then drops out . New meter installed Jan '25 - same issue, no overnight power to the off-peak circuit.
Ongoing Emails to help-centre do not progress the issue.
I gather the off-peak period is specified by 23.00 to 24.00 then 00.00 to 07.30 and assume this profile is held in the host system, so why change meters???? The second period from 00.00 to 07.30 must be missing an 'activate' tick of some sort in my account profile. Simple to investigate and correct.
The original "dumb" meter with the external electro-mechanical timer was associated with an MTSC of '5' (not 8xx ....?) but that field does not appear on the latest statement., is that pertinent?
Perhaps I've got this wrong, but the first line help desk people seem to be in a small loop whereby the only solution they are empowered to offer is "change the meter".
Anyone been through this before and can offer help please?

[retrotecchie]

Yes, sounds like a faulty meter

It's a hardware fault in the ALC circuit that switches the off-peak loads.

It's possible to try and reprogram the meter using an engineer and a hand held terminal but more often than not it entails a complete meter swap as it's usually a firmware or hardware fault rather than a configuration issue.

[Billjratt]

@retrotecchie Thanks for prompt reply. I guess there may be an issue with a batch of these meters then? I assume you advise against pursuing the SMETS "update tariff" command request, which was my next idea.
For general info - the meter in question is a KAIFA MA120B with an EDMI comms box fitted. - just in case there's an epidemic...!