What if the over conditioning is causing a voltage or the amperage to drop in the system. 2 conditioners run is sequence and the device (streamer) is making a power demand that the conditioners cannot provide. Kind of like a voltage drop on a fuel pump this cause the motor to over heat and fail.
Voltage drop testing compares the battery or charging voltage to the voltage at the component. The voltage drop occurs because of resistance in the circuit that supplies the pump. The resistance could be in the connectors, grounds or harness.
TESTING VOLTAGE DROPS
A voltage drop test is the only effective way to find excessive resistance in high-amperage fuel pump circuits. With the right leads and back-probes, it’s possible to do the test (if you have access to the top of the tank) without any disassembly. The results are immediate as to whether you’ve got a good connection or a bad one.