Lichamp A/C R134A Refrigerator Freon Recharge Kit with Bullet Piercing Valve, Piercing and Self-Sealing Can Tap 134A

Last charged it up two years ago and it was finally blowing hot again - and my old recharge gun no longer worked. Ordered this system yesterday.Instructions were included but lacking in a couple of details - like which side goes to the can and which side goes to the low-pressure port on the vehicle. I went back and forth a couple times but finally it seemed to work best when - with the gauge facing you topside up, the can connects to the right and the port on the left.Next problem was the self-sealing cans like to stay sealed - even when supposedly open. I found it necessary to back off the valve a couple turns, and it would actually only allow coolant to flow in a range of about half of one turn in the right spot. To confirm flow, I would slightly loosen the threaded connector attached to the low-pressure-port quick-connector. I'd turn the valve all the way in, and then slowly back it out until coolant flowed out the other end - and then I would quickly tighten the low-pressure-port connector. Kind of a PITA to do by yourself but that proved a reliable technique for every can.My last problem was the system was so low the compressor clutch wouldn't engage. Took me about 45 minutes of holding the can up high, shaking it and slowly gravity feeding coolant into the accumulator until enough leaked in to make it past the low pressure switch and activate the compressor clutch. Of course it would run one second, pressure would crater, it would disengage, and I'd go back to drip feeding.Over time, the compressor would engage more frequently and run longer, until I finally tickled the blue zone and it started sucking in refrigerant in earnest. Soon the accumulator started sweating and we were getting ice cold air in the cab.Time will tell how long this lasts. That system was EMPTY. Probably have multiple shrunken/cracked seals. Fortunately it appears the evaporator is right on the firewall at the top of the engine bay and easy to reach. Grateful for that.Long story short - kit worked just find and I would recommend to others.Thank you for coming to my TED talk.

At basically $30 I was skeptical about the quality of this kit with a gauge included. I bought it so I could add Freon to my refrigerator. This kit worked great with no issues. All the valves were top notch, threads were good and easy to use. It even had two piercing valves which I only needed one. Adding Freon fixed my issue and I loved how easy this kit made the job. Everything that was needed was included but the Freon. Next I am going to use it on my truck and top off that AC system! I can't vouch for how accurate the gauge was to a calibration standard but the values it had on the dial fell right into the area a refrigerator should be so again it worked for me.

Worked well for the price. Used it to recharge a commercial upright freezer

Everything I needed to top off my fridge! Had no problems with the guages or included valves. The bullet valves are also good! No leaks!

Good price good item

What to know about this product> First if you buy any hose or add any Freon to your car, truck or whatever, It might be low because of a leak. It might be a waste of time unless you find the leak. But in one of the cars in my parking lot the cold air worked but not really the greatest. I added 12 ounces with this kit and Freon I already had , now the air is ice cold. The fittings worked on a 2010 Toyota 4- runner. The instructions were ok. Just make sure you get the fittings tight.

Our 15 yr old fridge's freezer wouldn't go below 30deg after a nine hour power outage. In the end, all I needed was a piercing valve, a hose and a valve to connect the hose to the R134 can. There was no instructions in this kit and after watching every Youtube video I could find, I felt getting the pressure to somewhere around 2lbs would do the trick. I ended up pushing in about 15 ounces before I would get that pressure (using the R134 scale on the gauge) WRONG! It over-pressured the system and the suction line was totally frozen.I ended up renting a vacuum pump (AutoZone) and starting over by putting in 5.75 oz, that was stated inside the fridge. (It took me a while to discover that. DOH!)You don't have to do what I went through. All you need is the piercing valve, a hose to connect to that valve and a valve to connect that hose to the R134 cannister. (this kit has all that... just more parts you don't need). Once you have those parts connected (including clamping the piercing valve properly on the compressor line, I used the suction line), pierce the line, open the cannister valve and bleed out some refrigerant at the piercing valve end ( let it bleed at least three seconds!), tighten the hose and then open the piercing valve to let in one ounce.(put the cannister on a oz scale...dummy)Close the piercing valve. Close the cannister valve. Let the fridge run for an hour or so. Chances are it will help. Get a good thermometer and monitor the temp. 0-5 degrees is about right. If it helps but not enough, add another ounce using the above instructions. (Make sure to bleed some R134 at the piercing valve as to not let any air into the system!)If your fridge is just low on refrigerant and nothing else is wrong, this procedure should help. Though in the end I screwed up and had to pull a vacuum for 40 minutes, our fridge is up and running like new.There is one caveat using this method. Some say the piercing valve can leak. That may be true. But it most likely will be very slow and who cares... If you have to do this every few years, no big deal. Better than buying a new fridge.

Good set but needed an adapter for my 2002 Ford.

wording on dial face hard to read

One valve came broken, the rest ok