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(Topic ID: 276928)

Incandescent GI Lamps Fade In 5-10 Minutes


By clodpole

52 days ago



Topic Stats

  • 5 posts
  • 4 Pinsiders participating
  • Latest reply 51 days ago by clodpole
  • No one calls this topic a favorite

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#1 52 days ago

In a Williams Flash I have 3 incandescent playfield GI lamps which come on at full power when the game is powered on, but fade to very dim after a few minutes of play. What would cause lamps to work properly at first and then fade over the next 5-10 minutes?

#2 52 days ago

Possibly resistance. Have you replaced the bulbs yet? Also try giving the sockets a good cleaning.
-Mike

#3 52 days ago

Bum sockets, poor soldering, old bulbs (corroded), bad wiring.

#4 52 days ago

If the three bulbs dim exactly the same way at same time, might be a bad ground wire connection that leads from/to them that they are sharing.

#5 51 days ago

No common ground, new bulbs didn't fix... two new sockets seem to have done the trick. The third socket is more difficult to reach and will be my next effort.

Thanks for the suggestions!

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