crwdns2934241:0crwdne2934241:0 mike

crwdns2934249:0crwdne2934249:0:

Hi @xuanzaizhou

The professional solution is to disolve the candle wax by soaking in a beaker or cup  filled with 99% isopropyl alcohol (from electronic supply house)  for 10 or 15 minutes.  Allow to drain and evaporate over night.

The 99% is important as the weaker solution (rubbbing alcohol)can leave residue on the contacts

crwdns2915684:0crwdne2915684:0:

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