The CEE 7/7 plug also includes a female contact that allows it to be connected to the French/Belgian sockets in order to engage their male grounding pin. All stocked Interpower Continental European cords utilize
Check power supply. That can include aheat pump circuit breakerand or/a regular-looking wall switch close to the unit. That is another easy fix. I have responded to heat pump no heat or heat pump, not cooling calls, only to find the power was off inadvertently. Perhaps relatives were vi...