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Clarence SmithAug 5, 2025
What to do if the fan is working but the UV lamp indicator is not lit on my HTL HTL-Advansys-15.2U Air Cleaner?
- EEric WalkerAug 6, 2025
If the fan in your HTL Air Cleaner is running but the UV lamp indicator isn't lit, there could be a few reasons. First, check that the UV lamp is correctly installed in its holder. If it isn't, reinstall the UV lamp. If the lamp is properly installed, the UV lamp itself may be inoperative, requiring a replacement. Alternatively, the ECG (electronic ballast) might be faulty, and you would need to replace it.