I have a XT3 - GSX Cub Cadet garden tractor. The lift switch to raise and lower the cutting deck was acting up. What it was doing was the switch lowered the deck but would not raise the deck. Every once in a while the deck would rise after moving the switch from up to down. But, that is not guaranteed. So I replaced the switch. The new switch did not change any thing. I can hear the relay making contact at the fuse block. The lift motor works in both directions but no reliably. What is causing this issue?