Trying to Fix the remote for the house Fan, is this component a fuse

diyfusesrepair

Decided I would try and fix the remote for this 3 speed fan I have a home since it is summer now. Here's the circuitry I'm dealing with here:

enter image description here

So here our are some notes:

  • There was some battery leakage when I opened it up, but I cleaned the battery contacts. Would this be harmful to say the ceramic resonator or capacitors?
  • I replaced the IR bulb with no luck (in the right orientation)
  • All contacts look good, nothing looks like it burned up

My next move was to replace what I think is a fuse below that NPN transitor. Can anyone confirm that little red thing is indeed a fuse? If so, I have a bunch of these standard green ones lying around that I could put in.

EDIT:: Here's the bottom:
enter image description here

Best Answer

The "little red thing" is a diode. Without physical evidence of damage, it's probably fine.

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