Teresa,

We apologize for the lack of understanding and should have explained better perhaps. The check engine light was  on and had a code of POEA7 that perhaps was the same code you had. We did not charge you for pulling the code. The code read “Auxiliary Cooling System Performance has been detected.” What we charged was a diagnostic fee to figure out what the problem was with the Cooling System. My technician spent an hour doing a few tests to figure out what the problem was. He determined it was the water pump and needed to be replaced. We could have done the water pump but during replacement your air conditioner must be discharged. The problem was that we could not recharge the air conditioner because our machine does not recharge your system R1234YF.