Onan 5500 goes to manual

[THenman]

Hello everyone;

Just recently started having a problem with our controller. The unit will go to auto without any problem and start when demand requirements are meet. Problem is as soon as generator starts the system switches to manual and thus will not automatically shut off. Unit did work fine a few months ago but this appears to have started happening in storage.

Just wondering if anyone has seen and fixed this before.

Thanks!