Responded to call for kitchen light not working. Upon arrival customer stated light bulbs have been replaced and fixture is still not operable. Inspected fixture. Found fixture is a 2 lamp 4ft T12 fixture. Due to lights are dim advised customer of the defective ballast. Customer agreed to estimate. Removed existing T12 ballast in the kitchen light fixture. Installed new T12 ballast. Tested fixture. Fixture is now 100% lit. While in the home noticed an electrical burning smell. Visually inspected all outlets in the home. Found no issues with the outlets. Traced smell to ceiling fan in dining room on dimmer switch. Advised customer smell is most likely due to ceiling fan motor is defective which is caused by being operated by dimmer switch. Inspected electrical panel. Found no burns or corrosion. Found neutrals in the electrical panel are double tapped. Advised customer of the dangers of double tapped neutrals. Customer declined repairs at this time. Found no gfci protection in th