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Question About Craftsman Garage Door Opener 139.18450
Door Will Not Open...

Garage door opener quit working after minor power bump. Self diagnostics gives differnet fault codes, 3 flashes, 5 flashes but never 6 flashes for circuit board. Receiver for safety sensor dooes not show green light. Are there voltage troubleshooting numbers available to determine what component has failed.

Asked by Neil Havens on 09/06/2011 0  Answer

ManualsOnline posted an answer 13 years, 1 month ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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