Upon arrival tech was informed system outside was not coming on at all. Inspected and found standing pressure to be 45psi. Homeowner approved performing leak search. Tech found the screw cap on the back of the TXV to be cracked and leaking. After speaking with office and verified warranty tech emailed estimate to make repair. Homeowner will give office a call once ready to move forward. Condenser is currently left off at disconnect and Air Handler is running on Aux Heat.