Customer decided to have ac and furnace checked customer also stated they believe the ac was not operating properly found unit frozen outside and at coil with water dripping into the blower compartment started furnace clean and check tested and inspected all electrical components and controls cleaned flame sensor and condensate trap insured unit was draining normally and performed a combustion analysis all aspects of furnace are operating normally at this time ac has still not thawed rescheduled ac portion for next week weather pending. Returned found ac low on charge also noted coil was clogged cleaned coil balanced ac unit tested and inspected all electrical components and controls all operations are normal at this time.