If not, don't use them until they are professionally repaired. A clean stove is much safer that a greasy one. Dangerous grease fires may result from using a dirty stove. When cooking, you should wear clothes without loose-fitting sleeves or other material that could possibly catch fire. Remember to never leave cooking unattended.
Overloaded outlets are a serious fire hazard.
Bedrooms Smoking in bed is a deadly fire hazard. Look for overloaded outlets and misused extension cords. Most fatal home fires happen while the victims are asleep. Smoke detectors will wake you up when a fire is detected, preventing you from dying from smoke inhalation while you sleep. In fact, with working smoke detectors, your risk of dying in a fire is cut in half.