Saturday emergency HVAC call !! Low on refrigerant

[@JackGore]

You don’t think the tank over fans restricts air flow and skews the numbers?

[@JackGore]

Do not you think resting the tank on the fan skews the numbers bc it restrict the fans air flow

[@realSamAndrew]

Question- your first reading showed 9.2 subcool and high superheat, but when you started adding, the subcool was like 5. What happened there? Was the early subcool before it had a chance to run? Is it a TXV or piston?

[@Rhodesrepairllc]

@@realSamAndrew temperatures will change when adding. After adding give it 15 minutes. I think what was happened is to much hot gas mixture and not enough liquid. When I added it gave it more liquid that changed the temperature. I always look at gauges like suction side means issue at evaporator and liquid side means issue at condenser.

[@realSamAndrew]

@@Rhodesrepairllc but 9.2 subcool is not very low. And it was even lower after adding refrigerant. That's weird, no? That's why I asked if it was TXV or piston. And the video doesn't show it, but do you remember what the final superheat number was after you finished and it ran a little? Thanks.

[@Rhodesrepairllc]

@@realSamAndrew I don’t remember. We are schedule to go back and perform high pressure leak check. It was a TXV. I have seen multiple do this for some reason. Not sure if it is because it goes up 4 stories and maybe oil is getting trapped.

[@robmcshane3260]

Filter clean?

[@Rhodesrepairllc]

@@robmcshane3260 yea I checked it. One of the first things in every call.