i setup an additional tank for my compressor this weekend. fitted with 2 female couplers and a pressure gauge. i plan on using it when doing lots of work with air tools. my compressor is a small one and just does not have the capacity for extended jobs, so i figure adding the second tank AFTER the regulator gives me more volume of air before the compressor turns on, thus allowing the compressor to cool longer between cycles. it may turn out to not work as desired for all apllications, but it was free. we had an old tank at work tha twas being thrown out, along with the couplers, tees and the guage. the tank came off a dehydrator, never had moisture in it, so i took it to try my idea. i tested it yesterday, and it worked fine for the test. my impact usually gets the compressor running after taking off just 2 lug nuts. i took 3 off and put them back on without the compressor kicking in. when it did, it only had to run for an additional 30 seconds to fill the second tank to 90 PSI, so i hope it will work fine. the tank is rated to 150 PSI, but since it is after the regulator it will never see more than 90 PSI and that is all i felt comfrotable testing it at. i may run a long hose to it and test it higher, but then againg why should i? there is no drain on it, but there is another plugged outlet that i can remove to drain it. since it will hardly ever be used, this is not an issue.

http://www.campbellhausfeld.net/wcss...05900_1102.pdf Here is the basic part plan for the compressor. The copper tube doesn't get near the unloader valve. I have taken it apart and looked at it, it has a small metal pin in the top that is spring loaded that goes in and out if you push it, it seems to move fine. There is really nothing else you can do with it. It is plastic and looks clean. I reinstalled it. This machine never did this before. I would leave it on for days at a time and it just waited for me to use my oxygen and then would fill up again. It didn't let off air or even make a sound. I have been told by others that they have old machines that they removed the unloader valve for lack of a replacement and that they have used them for years like this. Of course this is a fairly new unit and being so far away from civilization it makes it hard on me to get parts or any knowledgable help even. I am pretty much on my own and have to figure it out. I will have to get some WD-40 and see if that fixes things, I usually have some but I happen to not have a can right now. I will make sure to bring one the next trip to the states....always am making a new list of must haves. I know or have been told that the motor will stress if I use it with a bad unloader valve, I don't know why this would be, is it because it releases air? Or can't release air while on? I know it doesn't release air while on, because I have felt where the air comes out and nothing does, until I turn it off and then it lets it all out....even the tank air....some air comes out of the intake hole as well.... Here is a link that might be useful: parts list for compressor....

Possible that the 240 outlet on the generator is wired incorrectly? Did you try any other machine that uses 240? Ron

Here is my advice, but you may not like it. Your best option is to cut your losses and replace the condenser, air handler, and lineset. I realize you are trying to salvage the 4 year old condenser, but at this point you are not sure what damage the fire or the three techs have done. In addition you will need to replace the 20 year old handler in the next few years. You will have to go through this process again. In my opinion buying a coil for $250 on Carigslist is just throwing more good money after bad. No one is going to give you any gurantees the system will last more than a cooling season. Get some quotes from a qualified HVAC contractor for a complete AC system.