These are the modifications to the Reliable inverter. I was having alarms until I did. The copper is 1/8 x 3 x 4 solid this made connections easier for me. The 2nd one is where the 4 spade connections are. There are 2 positive and 2 negative. Originally one set went to direct connection and one set to the outlets. Direct connect was 10 ga and outlet was only 12 ga. Now all 4 are 10 ga and spliced to 6ga and my outlet. The third picture is of the voltage adjust which mine will not go low enough. I am removing a 10K resistor at R47 and shorting the connection. The potentiometer is also 10k and is in series with the resistor. I will replace the potentiometer with a 20K ohm one to keep the overall resistance the same. Picture 4 is the lowest it will go and it is supposed to be 120 volt model. This 5000 watt is not really setup from the factory to run a whole house. Even the direct connection is 10 gauge which would be hard pressed to go above 3600 watts without the alarm going off all the time.