glock01
you should check all the suggested checks it says to check:
- 5rec for open circuit or open gate
- 1C for open and connections
- 1C for dead short
- 5rec for short
- 2rec for short
- check 1X choke and transformer T3-T4

and of course if all those check ok replace the control card

But one of the first things i would take care of is to fix that motor, oil can cause alot of issues with the insulation inside the motor so repair that problem then go back and recheck everything to narrow it down if the problem still exists.