I would not assume anything but if your saying you know it was right 5-10 years ago and lost 10 psig I dont know if I would look that hard to find that leak. It should not loose any gas but that amount over 5-10 years is going to be a small leak. I would test for leaks but as far as spending hours on it, owner would have to approve that. Hundreds of dollars spent on finding a really slow leaking valve core that finally sealed is a bad idea to me lol.
Originally posted by bananaboy
The company I work for, services any A/C (Furnace) installed by us or not.
Assuming the pressure was correct from the "get-go", then a drop of 10 psig 5-10years later IS or IS IT NOT normal ?