絶縁抵抗（IR）の数値が低い場合はどうすればよいですか？

慌てることはない。ただの汚れであることが多い。.

• The Cause: Saltwater residue creates a conductive path across the rubber face.
• The Fix: Spray liberal amounts of alcohol on the face and pins. Scrub gently with a toothbrush. Blow dry with clean compressed air.
• Persistent Issue: If cleaning doesn’t work, water may have wicked inside the cable or the potting. This requires replacing the assembly.