[Richard]

I am typing on a soda cracker, so please overlook typos. This is my understanding of how and why the sensors interact with the hwh system. The ones on the front sixpack prevent the front airbags from dropping below a preset pressure when leveling the coach. The idea being to prevent an excessive twist n the frame that would result from one of the bags ffrom going solid. Or the prevet twist which would hinder slide in and out. The rear switch does something similar, but only measures pressure to give you an alarm if the pressure is too low to travel. All of the switches are normally closed, meaning when the desired pressure is reached the circuit opens. The is why disconnecting the switch tricks the hwh brain into to thinking the necessary conditions for travel or slide movement are satisfied. I have used the coach with all of them disconnected and i have gone to the trouble of sourcing, replacing, and connecting the switches. I dont know that i can tell much difference. If you order front switches be aware of the pressure setting. I have read reference in hwh literature that different manufacturers used different pressure set points. I do not remember what the setpointsmare for our rigs