failure mode
FM-11: 충전이 정상인데 표시등이 흐리거나 멈추거나 잘못됨
FM-11 충전이 정상인데 표시등이 흐리거나 멈추거나 잘못됨
진단 개요
FM-11 충전이 정상인데 표시등이 흐리거나 멈추거나 잘못됨
예상 근본 원인
- Indicator lens or printed legend is dirty
- Bright ambient light masks the indicator
- LED, lens, or internal indicator connection is failing
- Indicator-control circuit is latched or damaged
빠른 점검
- The indicator clearly matches actual charging and completion, or the charging outcome is normal and the indicator-only fault is routed to service/replacement.
수리 미리보기
- If the indicator remains unreliable, stop relying on it and have the complete charger serviced or replaced; do not open the housing.
- Unplug the charger, remove the pack, and clean only the outside of the indicator lens and legend with a dry soft cloth.
이것은 전체 수리 매뉴얼에 포함된 문제 해결 안내의 미리보기입니다.
관련 증상
Independent checks show the battery charges and powers a tool normally, but the red or yellow indicator is too dim to read, remains stuck, stays on after pack removal, or does not match the label pattern.
Independent checks show the battery charges and Unplug the charger, remove the pack, and clean only the outside of the
전체 매뉴얼에 포함
- root cause analysis
- tools needed
- step-by-step repair procedure
- diagrams
- exploded views
- post-repair checks
공개 페이지에는 미리보기만 표시됩니다. 전체 수리 단계, 다이어그램 및 검증 절차를 다운로드하려면 전체 매뉴얼을 구매하세요.