Onan 7500 Quiet Diesel Trouble Code 32 FIXED

I have a 10000QD and had a similar situation last week with ours. You've been given good advice so far and that's exactly what I started with-checking all battery connections and grounds. Still no crank signal from any of the switches. I started cleaning the grounds that are inside of the enclosure and still nothing. So, I began disassembling the enclosure so that I could get access to more of the wiring. I was able to get the top cover off that gave me access to the switch on the front of the genset. Removing the connection from the switch, cleaning the connections and replacing solved my problem. Didn't involve that much getting to the switch so might be something for you to consider. I have heard of others having a similar issue with the switch. I was prepared to start checking voltages at all of the relays using this troubleshooting procedure that another owner with a code 32 had at JustAnswer.com

Here's hoping your problem was as simple as mine.