we recently had an addition put on our house and had to move our existing condenser. It is 16 years old and has freon loss problems previously. we had it reinstalled through our general contractor(which we trusted 100%) who brought in a HVAC company to reinstall it. it worked for about 3 weeks and stopped dead. we didn't like the look of the guy our G.C brought in so we called a friend. he said a joint had blown because he hadn't used the yellow tinted silver brazing rods and we lost all freon making our compressor burn up. we asked about the overload switch? and our friend said it was blown because of the freon loss which inturn made the compressor die.
is any of this accurate? we did not give our G.C. a chance to come in and look at any of this just had our friend replace with a new system.
it's possible. Never heard of yellow tinted silver brazing rods though. Low pressure cut-out didn't work. I wouldn't have messed with a 16 year old leaking A/C, i would have replaced it anyways along with at least the indoor coil. JMO