I tried using a new contact cleaner on a stubborn LRU connector and it made things worse.

2 comments

2 Comments

Yeah, "made things worse" is a classic sign. A lot of those new cleaners leave a residue if you don't scrub them off completely. That residue can actually trap more dirt or cause a slight film that KILLS the connection. You might need to go back in with a pure solvent and a stiff brush, then compressed air to really blow it out. Sometimes the old school methods are the only fix.

tara7009d ago

Actually, compressed air can push that residue deeper into the connector or switch. I mean, if there's a film left by the cleaner, you're just blowing it around. A pure solvent on a q-tip and working it by hand is way safer. You really want to dissolve and wipe the gunk away, not just move it somewhere you can't see.