E
elliottalexAug 5, 2025
Why doesn't the Olympus TH4 Power Supply bulb light even when the POWER LED is on?
- BBeverly CherryAug 6, 2025
If the POWER LED is lit but the bulb remains unlit, several factors could be at play. First, the bulb may be nearing the end of its life and needs replacement. Second, a cord plug might not be properly connected, so it's worth checking all connections. Finally, the lamp ON-OFF switch on the hand switch might be set to OFF, so ensure it is set to ON.