We have a Cool Energy InverTech Air Source Heat Pump | CE-iVT9 4.3kW-9.5kW.
We have had a DC Bus Overvoltage fault come up. Running since June 2021, its our first hiccup.
The result was that the pump was on but not the compressor or the fan.
We managed to turn everything off and turn it all back on and it fired up as per normal.
However, in case it happens again does anyone know what might have caused this to happen?
Regards
Marvin