Symptom:Won't stay hot; stops dispersing and goes cold; turns black.

Solution: : First we must point out that the only way the stone can disperse fragrance is without a flame. No fragrance can be emitted with the flame burning. Make sure you have read all the directions thoroughly. If following the directions does not get the lamp going, try reducing the fluid level. These lamps should never be filled past half full. Try putting just one ounce in the lamp and restarting it. This should get the lamp to function. Now just let it do a complete burnout . When you go to refill the lamp try using only four to five ounces at a time. You might want to use a measuring cup.