Tech arrived at a tune-up. It was raining. There was a for sale sign out front. Upon inspection, the system appeared low on refrigerant. The indoor coil was leak searched and found to be leaking refrigerant. The filter was dirty and replaced. There was no drain safety. The capacitor was within specs. The customer was informed of recommendations today. Due to age, condition, price of repairs and presence of R22; it is recommended that the customer speak with a Comfort Advisor adout upgrading to something more reliable with warranties behind it. She mentioned that she would shop for pricing. We would like to be last if possible and we set up the meeting for Monday the 18th afternoon. She would also like an electrician out today. The office was notified and we will have someone out this afternoon.