Garage door opener repair

Garage door opener repair
Originally uploaded by grwster

Had to replace the transmitter side of the safety beam on Dad's garage door opener.

I suspect a cheap IR LED that degraded until it was too dim to fully activate the receiver (even after careful alignment the receiver indicator flickered).

We diagnosed the problem by moving the transmitter and receiver closer together and noticing that the receiver indicator was solid at close range (and the door worked fine). I suppose we could have just mounted them next to each other, disabling the safety feature, but that didn't seem very smart.