Went out to exercise gen and ac's today. One not cold and found a leak. One of the 2 little capillary??? lines has a hole rubbed in it. Seems to be an odd size. O.D. Measures .110". I have enough room to cut and splice with a connector but it is smaller than 1/8" so not sure if I can find a fitting that will work. Can I solder this small of a line without filling the inside? Or will any of this effect the operation of the unit?

you have to use silver solder "Weld". You would patch incase the line with the hole. Just split and weld in place. Vacuum and service.

Not sure it you can or not but the really bad part is you have to get all the remaining refrigerant out first. Not sure about the modern Freon but get the stuff hot enough and it decomposes into phosgene. You might be better off cutting the damaged section out and soldering in a sleeve sized to fit. You'll also need to add gauge points on the high and low pressure sides to pull a vacuum to check the repair, refill and also test the compressor efficiency. Easy repair and even if you have to buy a few tools and material still costs less than a new unit.

Dale.Traveling wrote:Not sure it you can or not but the really bad part is you have to get all the remaining refrigerant out first. Not sure about the modern Freon but get the stuff hot enough and it decomposes into phosgene. You might be better off cutting the damaged section out and soldering in a sleeve sized to fit. You'll also need to add gauge points on the high and low pressure sides to pull a vacuum to check the repair, refill and also test the compressor efficiency. Easy repair and even if you have to buy a few tools and material still costs less than a new unit.Think he is talking about dash a/c. He shouldn't have to do all that stuff if it is dash air.

I'm sure 99% of the freon is out. It has a low side tap in it already and I have a vacuum pump, gauges, freon. Just need to get all the repair stuff. Copper is sized by OD right? Guess I could get some copper tubing the right size to cut a piece to make a repair sleeve.

Dale.Traveling wrote:Not sure it you can or not but the really bad part is you have to get all the remaining refrigerant out first. Not sure about the modern Freon but get the stuff hot enough and it decomposes into phosgene. You might be better off cutting the damaged section out and soldering in a sleeve sized to fit. You'll also need to add gauge points on the high and low pressure sides to pull a vacuum to check the repair, refill and also test the compressor efficiency. Easy repair and even if you have to buy a few tools and material still costs less than a new unit.you wont have anything left in the unit freon wise to worry about.The thing is RV rooftops are not refillable so your going to have to solder in a refill port orfice also

A/C sprung a leak-solder? | Good Sam Community

15 Replies

deadbat
Explorer
Jun 08, 2013
Dale.Traveling wrote:
Not sure it you can or not but the really bad part is you have to get all the remaining refrigerant out first. Not sure about the modern Freon but get the stuff hot enough and it decomposes into phosgene.

You might be better off cutting the damaged section out and soldering in a sleeve sized to fit. You'll also need to add gauge points on the high and low pressure sides to pull a vacuum to check the repair, refill and also test the compressor efficiency. Easy repair and even if you have to buy a few tools and material still costs less than a new unit.

you wont have anything left in the unit freon wise to worry about.The thing is RV rooftops are not refillable so your going to have to solder in a refill port orfice also
JackMS
Explorer
Jun 08, 2013
I'm sure 99% of the freon is out. It has a low side tap in it already and I have a vacuum pump, gauges, freon. Just need to get all the repair stuff.
Copper is sized by OD right? Guess I could get some copper tubing the right size to cut a piece to make a repair sleeve.
wny_pat1
Explorer
Jun 08, 2013
Dale.Traveling wrote:
Not sure it you can or not but the really bad part is you have to get all the remaining refrigerant out first. Not sure about the modern Freon but get the stuff hot enough and it decomposes into phosgene.

You might be better off cutting the damaged section out and soldering in a sleeve sized to fit. You'll also need to add gauge points on the high and low pressure sides to pull a vacuum to check the repair, refill and also test the compressor efficiency. Easy repair and even if you have to buy a few tools and material still costs less than a new unit.
Think he is talking about dash a/c. He shouldn't have to do all that stuff if it is dash air.
Dale_Traveling
Explorer II
Jun 08, 2013
Not sure it you can or not but the really bad part is you have to get all the remaining refrigerant out first. Not sure about the modern Freon but get the stuff hot enough and it decomposes into phosgene.

You might be better off cutting the damaged section out and soldering in a sleeve sized to fit. You'll also need to add gauge points on the high and low pressure sides to pull a vacuum to check the repair, refill and also test the compressor efficiency. Easy repair and even if you have to buy a few tools and material still costs less than a new unit.
MountainAir05
Explorer II
Jun 08, 2013
you have to use silver solder "Weld". You would patch incase the line with the hole. Just split and weld in place. Vacuum and service.

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A/C sprung a leak-solder?

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