Hi, I had my smart meters installed yesterday lunchtime, this morning my IHD tells me I used a combined gas and electric totalling over £25!! there is no way this is correct. My daughter had a shower this evening for 5 minutes and the electric cost went up on the IHD by £5.....anyone else having these unusual readings? its worrying me as my bill is going to be massive!
Best answer by jewelie
Update 17/09/20: Incorrect high usage was a known issues for SMETS2 IHDs. OVO applied a firmware update to fix this in 2019 and early 2020.
See this SMETS2 IHD guide to diagnose issues with your In Home Display device. See this guide to diagnose connection issue with your actual SMETS2 smart meter.
There seems to be a massive silly bug in IHD units being supplied with 2nd gen SMETS2 smart meter installs. Even with the right tariff and kwh readings it fails at doing the basic maths to calculate the the cost.
For now, our one is just turned off until there's some kind of official announcement about how they're going to fix this daft bug.