Samsung energy consumption is illogically high or low
A recent change to the data we receive from some Samsung heat pumps means that the energy and cost data is being over- and under-reported
During long periods where both the heating and hot water is inactive, the heat pump continues to report that electricity is being consumed - even when it is logically not.
Unfortunately, this isn't something we can fix easily on our side. We will continue to monitor the situation
Heat pump temperature data lags slightly behind the manufacturer controller/app
The maximum delay should be 5 minutes for most brands. For some (e.g. Samsung, it is 2 minutes. This doesn't affect Havenwise operation, as it is not an on/off controller.
For room temperatures provided by a Shelly device, latency is about a minute when powered by cable. When powered by batteries, it updates whenever the Shelly changes by more than 0.5C.
Vaillant onboarding: Gateway serial number not recognised, when it is correct.
Usually this is due to having had a PCB replacement at some point. These heat pumps have an invalid serial number which is mostly 0s. This can be fixed by emailing Vaillant directly - they are quite responsive to this issue.