My hot water and storage heaters work on Economy 7 so the meter should switch the electric supply on around midnight and switch them off around 7am. It worked perfectly until I had a new smart meter fitted in March this year. Ovo tell me it the new smart meter is programmed correctly on Economy 7. However when I look at the hourly graphs I can see that it switches on at 4,30am for 3 hours, 2.30 pm for 3 hours and then 8.30pm for 3 hours. None of this is overnight when my off-peak rates apply.
Is this even possible?

