Hi - Recently had to have the gauges replaced on our 08 wake 215. I don't know how similar the situation would be with an 02 but what seemed to happen was the unit started getting some condensation in it, it seemed to short out and blew the fuse as it was drawing well to much power, replaced the fuse to test and blew straight away, had to get the unit replaced which wasn't cheap but its all back working fine now - Also it will reset your hour count if you get a full new unit.