Several switches suddenly not working

[Skicoop2]

2001 310 Sundancer. My bilge pump switch and all of the switches to the right of it don’t work. Worked two days ago and today nothing.

Any thoughts please.

 

[hottoddie]

Access the rear of the switch panel and check the connections both positive and negative. Because it affects several switches it would be located at the main buss most likely.

 

[Skicoop2]

Do you mean the connections to the switches or is there a panel back there?

 

[hottoddie]

Somewhere there is a positive and negative "Buss bar". Each will be fed with a single larger black or red wire. The buss bar will have several wires connected to the different accessories the it powers. If all the accessories connected to that buss bar stop working then the main feed wires to one of the buss bars has failed.

 

[Skicoop2]

Thank you for your help. I’m going to test it tonight and see what I find.