well pump pressure switch.

[tadouh]

I have a pressure switch that looks like most the ones out. L2 on the left L1 on the right. M on the two middle slots. My wires from the box come in and touch L1 and M then the wires from the pump capacitor box touch L2 and M. From left to right it goes L1 yellow pump wire L2 black pump wire.

From my understanding each hot should land on each leg, L1 and L2 and the two pump wires should be on the M slots?

I did not wire this is was how I bought the house, but I am going to replace the switch and just noticed the wiring being wrong from the diagram. How is this even working like this?

 

[bigb56]

From left to right it goes L1 yellow pump wire L2 black pump wire
This sentence, unless I am reading it wrong, contradicts what you described in the first two sentences

What you describe in the first two sentences won't work as there would be a dead short but what you describe in the third sentence would work fine, they simply changed the order of line and load on one of the switches (contactors).

(edited for simplicity)

 

[Sponsor]

 

[Reach4]

Presuming 230 volt pump, typical wiring except the switch 2 and 3 go to L1 and L2 of the control box (reverse L1 and L2 of the box) and the pump motor connects to the control box R, Y, B. HOWEVER box L2 may be connected inside of the box to the box Y. So that may be what is going on-- whoever was wiring this noted that Y and L2 were connected, and instead sent the L2 right to the pump motor.

 

[Fitter30]

Brand and model of control box . Can't read the diagram after blowing it up

 

[Reach4]

The diagram is one I posted -- not OP's. I just posted that to support that the Y=yellow and L2 are electrically connected inside that box, and probably OP's box.

 

[bigb56]

From the 3rd sentence of the OPs first paragraph this is what I envision

 

[tadouh]

thanks for the help guys. After realizing this is essentially just two different contact switches i see why mixing the hot wires with the M wires really would not make a difference. I have since re wired it properly tho.