We first wired ours to the ignition key for the On/Off to the machine (the key had to be "on" and the remote box did also). When you close the circuit, it can't seem to handle the charge that is sent. The box clicks and it works for a short period (3 sec.) then clicks off automatically. We now use the oil sensor to shut it down. We use a spare "button" that when pressed, sends a oil sensor problem to the machine, which shuts it down. You have to make a remote connection until the machine stops entirely. If you let go to soon, it fires back up. We did something similar with the heater.