Performed cooling maintenance on two Goodman split systems one with two zones. The 3 ton system was a little low on refrigerant and also voltage absorption system had failed. I replaced the voltage absorption system. Customer declined charging system to proper perspective, specifications all other electronics and pressures on the smaller unit were within factory specifications. Customer would also like an estimate for adding a return to the front office Both units running normal at departure one with a 52° exit tap and the other with 53° temp.