Yes. This is mainly due to dust from parafin wax. Step 1 remove filter tank. Step 2 close the lid Step 3. Use flexible tube and attach one end to dispenser tube. Step 4. Blow forcefully from other end of the tube.then press wax dispenser swich. Once you hear bubble sound from tank. Remove tube from dispenser. Step : there will be some dust particle in tank.. Let me know. Once you done this action..
