I've had no AC for a few years now. I started by adding dye and found what I thought was a leak 8in the condenser so I replaced that. I had a friend come over and it seemed to hold vacuum so I charged the system and it held for a few weeks and went dead.
this year I pulled the evaporator and found yet another spot so I replaced that and bought a gauge set and vacuum pump and pulled vacuum on the system. I let the gauge sit for about 30 minutes with the pump off and it held vacuum so I filled the system. This time it lasted on a few days.
I'm obviously at a loss with this. I thought if the system could hold vacuum it was considered sealed. I've read where people pressurize their systems and then spray them down to find leaks.
Is this the best way to find leaks? And how would I go about do this?
this year I pulled the evaporator and found yet another spot so I replaced that and bought a gauge set and vacuum pump and pulled vacuum on the system. I let the gauge sit for about 30 minutes with the pump off and it held vacuum so I filled the system. This time it lasted on a few days.
I'm obviously at a loss with this. I thought if the system could hold vacuum it was considered sealed. I've read where people pressurize their systems and then spray them down to find leaks.
Is this the best way to find leaks? And how would I go about do this?