A coil small leak

[The Cobbler]

forgive me if this is covered, I searched to no avail but my search skills aren't the best sometimes
My 5 or 6 yr old a-coil has a small leak apparently... neighbors son in law is a commercial a/c repair man. he is going to come back thru the week and look closer ane see where the leak is, if it can be brazed , if not he suggested using sealer and claims it is safe and wont destroy the system. then he says, well, time will tell wont it....

thoughts?
thanks in advance

 

[Dagny]

See if he can spend some time looking for it before he adds that stuff. To me it's more of a last resort.

 

[unslow1]

I added it as a last resort 4 years ago. Still working but I know whenever it fails I'm replacing the furnace and AC.

 

[Done That]

If your line set is accessible for future replacement with a new system then probably. If not, wouldn't do it.

 

[The Cobbler]

thanks . his first thing is he wants to solder it if he can , if not he said use the sealer.
so I guess I have 3 options.
repair the leak if possible
replace a-coil
put sealer in the system

 

[LS6 Tommy]

thanks . his first thing is he wants to solder it if he can , if not he said use the sealer.
so I guess I have 2 options.
repair the leak if possible
replace a-coil

I fixed it for you. Leak sealers at best are snake oil. Everyone knows snakes are self-lubricating...

Tommy

 

[James-W]

My recommendation is to bite the bullet and replace the"A" coil. Yes, it is certainly possible to repair an "A" coil. But by the time you pay someone to take it apart and try to repair it, to just replace the "A" coil wouldn't be all that much more money.

 

[samss]

From my experience, if a coil leaks in one spot it's likely to leak in other spots. Replace the coil or roll the dice with the sealant and plan to replace the entire system at some point. I've had good results with Leak Freeze, but I've only used it on 10yr or older equipment that the customer plans to replace anyway.

 

[danski0224]

Repair isn't worth it, unless it is being done for free.

 

[PWC Repair]

If it's 5 or 6 years old just replace it, it should be under warranty.

 

[Trey T]

I don't trust chemical to be used as sealer. I mean, it's gonna be floating in your system and gonna either kill it slowly or change the performance.