Detecting a leak

[summerblues]

What is the most economical way to detect a slow leak.
I have a 1.5 ton split system with condensing unit on the roof.

[aircooled53]

Bubble soap, the coil and connections..

[summerblues]

I don't think so, not for a very slow leak, what is meant by coil the connections

[hvac hero]

I'd recommend calling a hvac contractor & get him to use his electronic leak detector. It looks something like this.


He's gonna charge you a service call & a fee for finding your leak. Sometimes they'll let that go towards the repair if its something like a evaporator. Just depends. If I were you I wouldnt even bother finding it, unless your planning on spending the money to have it fixed.

[subcooled_]

Call a contractor, they will come out check electronically and with bubbles. They may need to boost the pressure in the system with nitrogen. And as hvachero indicated, if the leak is in a coil it likely will be unrepairable and the coil will have to be replaced.

[cem-bsee]

bubbles detect gross| large| bad leaks.

small leaks by gas detection instruments, tuned for the specific gas.

[jrbenny]

What is the most economical way to detect a slow leak.
I have a 1.5 ton split system with condensing unit on the roof.

Have you applied for professional membership yet? I highly recommend it. You'll get some more detailed answers to many of the questions you've been posting.

[wolfstrike]

look for oil spot