Breaker not on Electrical Upon arrival thermostat was set to cool check the breakers. The breakers on the breaker panel were set on. There’s a disconnect going to the condenser outside it was off. The customer told me that they did have a AC guy come out here that wasn’t from our company trying to figure out what had happened to the unit when why it wasn’t cooling and he forgot to turn the breaker back on once I turn the breaker on the system came alive, but it was heating. This is a heat pump a Lennox heat pump. I went to the thermostat. I pulled the thermostat off the wall, check the wiring and saw that the orange wire for the reversing valve was not securely into the reversing valve position I stripped back fresh copper, inserted the reversing valve, wire into the OB terminal and put the thermostat back on Put it back to cool and the system started cooling immediately. I had A 20° split 78° return 58° supply customer did not have a filter in the filter tray. He was going out to