1.) Is the drawer closed?

Is the drawer warped or misaligned?

2.) Unplug the unit.

Check Reed Switch 2 for a loose connection at switch & board.

3.) Unit still unplugged.  Locate connector WH8 on the main PCB. Set your multi-meter to read resistance and test Reed Switch 2 measuring from pin7 white to pin8 white. Resistance should read < 1 ohm when the drawer is closed.

If the switch does not close, test the switch with your own magnet. If the switch closes now, suspect a drawer alignment issue or missing magnet in the drawer. If the switch still does not close, suspect a bad switch or harness failure. The part location for the harness that includes both reed switches is M022.