Customer said mini split unit would only work for a little bit after resetting the power and was increasing the electric bill. System is 1 outdoor unit and 5 indoor heads. Found that the system is low on refrigerant and probably has a leak somewhere. Had 1 pound of 410a and should have 10 pounds. Ustomer decided not to do anything today. Left a quote for refrigerant, leak search for problem system, and cozy hvac plus for 2 mini split systems.