I do not know who you are without a signature but are the condensing unit compressors cycling on short cycles such as 15 to 30 second cycles? They should not be doing the same thing because they are independent (we assume) but it is TOTALLY possible both are low on freon.
If they are short cycling… cut them off… do not use them until an A/C guy can recharge them. The freon plays a part in the compressor’s lubrication… so if it is low…leave them off…
If they are low… you have an obvious leak that can be found by the use of a colored leak finder that gets infused with the freon.
If the leaks are found and the system has to be broken, change all of the “O” rings and the in line filters which are not expensive.(If the inline filters have minute pieces of metal in them, the compressor is coming apart)…If that is not the case, have the “O” rings totally coated with compressor oil and refitted. Vacuum down the system to thirty pounds or whatever the tech recommends and make certain it does not lose a pound over a thirty minute period. If that holds, refill with the freon gas applicable to your unit.
It can be leaking at the condenser, the evaporator or at any “O” ring connection (even at the compressor)…
Pres
Tradewinds Coach
Kyle Bennett (Service)
Brian Miller (Sales)