GE Spacemaker XL1800

I REPLACED 2 DOOR SWITCHES - Door sensing switch (AP2024337) and Switch - monitor (AP2024338) the microwave did not work. When I open the door, the display totally disappeared. I have to reset the clock. Then the vent fan, vent fan boost and the surface light works. When I operate, the microwave beep once and the light inside flickering few second then nothing happened. Please help me identify what’s next i should check. Thank you for your advice. Louis