New holland LS 250

Hello joined this morning to find out problems with my Seat safety sensor. The sensor in the seat , the seatbelt switch, or something else. It keeps thinking I'm not on the seat and won't let me use the boom until I reattach the seat belt clip. The last owner thought he wasn't heavy enough. I believe that is not the problem with me. I have removed the seat remove the sensor built it up so that would go off easier. Does not seem to help. Has anyone had a similar problem. Other than that I love my LS. It's a shovel with a motor on it something of always wanted.

Hopefully Mike will show up soon and give your more advise.
I'd check the wiring and that the switch is in good shape.