Reading Usage Hours
1. Press USAGE once. "FILTER" and the Filter Usage hours light up on the display.
2. Press USAGE a second time (before the display returns to Normal Mode). "USAGE" and the
System Usage hours are shown on the display.
3. Press
to return to Normal Mode.
Clearing the Filter Usage Counter
1. Press USAGE once. "FILTER" and the Filter Usage hours light up on the display.
2. Press and hold the ▲ or ▼ buttons simultaneously for 2 seconds to reset the Filter Usage
counter to 0 hours.
3. Press
to save and return to Normal Mode.
Clearing the System Usage Counter
1. Press USAGE twice. "USAGE" and the System Usage hours light up on the display.
2. Press and hold the ▲ or ▼ buttons simultaneously for 2 seconds to reset the System Usage
counter to 0 hours.
3. Press
to save and return to Normal Mode.
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