1) Check the elapsed time meter located at the right side of the control pad to make sure that 5000 or more hours have elapsed since lamps were installed. We recommend that all lamps be changed after 5000 hours of unit operation.
2) Unplug the power cord from the power source (e.g., wall socket) before you replace the lamps.
3) Refer to page 4, figure 3 of the attached manual for correct lamp placement. Replace all lamps.
4) Verify that the lamps are replaced properly by illuminating each one separately to make certain that the operating switch turns the desired lamp ON and OFF.
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