System not cooling adequately. Noticed that the blower motor is intermittently turning on and turning off. Got motor to temporarily run. Checked pressures at unit found system low on refrigerant which means there’s a leaking system. Gave client options for repairs, however, system is 16 years old and recommend replacing due to age and cost of repairs. Client needs a day or two to think about it and wants to get another quote. Will follow up in a day or two.