On today’s visit I found the outdoor unit and low pressure system lockout I presented the homeowner with a die test and Freon to recharge the system to see where the leak was. I found the leak on the outdoor unit by the filter dryer and the low pressure lock out. I fixed the leak and charged a system up with 4 pounds of Freon and also pull a vac on the system and it is running and heating the house like it supposed to.