GARAGE DOOR LIFT LIGHTS NOT WORKING?

I have had two inquiries about inoperative lights of garage door lifts. As it turns out, often the contact in the light bulb base gets corroded.

 When the bulb warms it expands at a different rate as the plastic base. This cycling eventually loosens the bulb. During that period the contact may lose contact, causing an arc which further promotes corrosion and heat.

In this example, the plastic base melted from the heat.

You can clean the contact and lift the contact up to provide a more positive connection. CAUTION UNPLUG THE UNIT BEFORE TRYING THIS FIX

I don't like the design of this type of socket and wish they were made more robust.