I bought this snow thrower last year. I'm getting it ready for action this year and I just can't get the thing to turn over. It's indicating a trouble code of 27. I've got fresh fuel in the tank, a new fuel filter and the pump voltage looks ok at the connector (7.1V). When I try to start the engine, I hear a clicking sound coming from the area of the fuel tank. Does anyone have experience troubleshooting this problem? Thanks.