Did you actually unplug the power from power at the wall for 40 minutes?GeorgeSent from my iPhoneOn Apr 26, 2019, at 3:39 PM, master-12l@... [disklavier] <disklavier@yahoogroups.com> wrote: Unfortunately I tried to turn it off for 10-15 minutes, there was no result.I turned off all the incoming wire. What kind of contacts you need to check?