Air conditioners have many parts that require routine maintenance. Among them are the condenser coils, which should be cleaned on a regular basis, as well as the drain line, which ought to be blown out every four to six months. Some components are built to last the life of the unit, such as the compressor and condenser, while minor parts such as the aluminum lines can become damaged through normal wear and tear. Repairing an aluminum AC line is a relatively simple job.
Things You'll Need
- Steel wool pad
- Welding goggles
- Propane or acetylene torch
- Aluminum flux weld
- Microfiber cloth
Clean the aluminum AC line with a steel wool pad. Scrub until the bare aluminum shows through and no dirt or grime remain on the line.
Light a propane or acetylene torch. Allow it to heat up for five to seven seconds and hold it 4 to 6 inches away from the aluminum AC line. Heat the aluminum line by waving the flame up and down, back and forth.
Melt aluminum flux weld onto the AC line where the aluminum is cracked or a hole has appeared. Allow the aluminum flux weld to drip onto the broken part of the aluminum line. It will quickly repair the compromised part of the AC line and patch it with a like color.
Let the aluminum flux weld cool for about five to 10 minutes, then rub with a microfiber cloth to polish the patch.
- "Welding Fabrication & Repair: Questions and Answers"; Frank M. Marlow; 2002
- "Aluminum Welding"; N.R. Mandal; 2001
Aluminum A/C Hose Repair
Aluminum air conditioning tubing and hose in cars and trucks can sometimes go bad or fail. When this happens, you can repair...
How to Repair an Evaporator Coil on a Refrigerator
A refrigerator uses refrigerant evaporation to cool air blown across an evaporator coil. A compressor pulls the refrigerant vapor back and condenses...
How to Repair an Automotive Air Conditioning Line
New air conditioning hose assemblies are expensive. Oftentimes, a simple repair can save hundreds of dollars. Repairing air conditioning lines falls into...
How to Repair an Aluminum Pipe
Aluminum pipes are commonly used with water systems because aluminum is highly resistant to rusting and corrosion caused by water exposure. Another...
How to MIG Weld Aluminum Tubing
Aluminum is a very thin metal that most welders would not attempt to braze using the metal inert gas (MIG) process. The...
How to Splice a Rubber AC Hose
Although the AC, or air conditioning, lines in most cars today are aluminum, there are still plenty of older cars out there...
How to Solder an AC Condenser
Silver soldering the copper lines to an air conditioner's condenser unit is not rocket science, but it does require attention to detail....
How to Do Epoxy Repair of Air Conditioner Condenser Tubes
Air conditioner condenser tubes are generally made of copper alloy and are susceptible to wear and tear at joints or turns. Significantly...
How to Seal a Leak in an Air Conditioner Line
Air conditioning lines found at the unit itself consist of copper. Unlike ductwork, you cannot simply patch copper with water-mastic sealant and...
How to Repair an Aluminum AC Pipe
Air conditioning lines, pipes and coils are typically made of aluminum. This metal is durable, light weight and somewhat impervious to weather...