When the switch is operating correctly, there will be an “L” symbol visible on the bottom of the main screen whenever the hopper lid is shut. If the “L” is not present, follow these steps:
1.) Manual Test: Depress the roller (or plunger) all the way down with your finger. If the “L” reappears on the screen while the switch is manually engaged, this usually means that the switch itself is good but is seated in a way that is not making good contact with the lid. If the “L” does not reappear or flickers on and off, this could indicate some internal problem within the switch or the wiring.
2.) Readjustment: If the switch is verified good using a manual test, oftentimes a readjustment may resolve the issue. Most often, it is the roller arm on the top that has gotten bent down by the weight of the lid closing. Using your finger, you can slightly bend the roller arm back and up so that it makes better contact with the lid plate when it closes.
3.) Bypass: If the switch itself is verified to be bad, there is the option to bypass it (This is not intended to be a permanent fix. The hopper lid switch is a safety device and should be replaced if it is not working correctly). When you take the switch assembly apart, you will see where the wire forks attach to the bottom screw posts. Connecting both forks to the same screw post will complete the circuit and will report an always closed message to the motherboard. When bypassed, the auger will not stop feeding even when the hopper lid is open.
For more information on troubleshooting click on ComfortBilt's Guide-to-Switches or the Videos tab above!