Solved Bed Calibration (Problem?)

Hello,
My Robo prints good and has had few problems. I did notice my numbers that the g-code spits out while doing the auto bed leveling routine (G29), look quite a way off from what I've been reading they should be. Here is from the log:
->G29

<-Bed x: 15.00 y: 20.00 z: -1.18
<-Bed x: 107.00 y: 20.00 z: -0.93
<-Bed x: 199.00 y: 20.00 z: -0.89
<-Bed x: 200.00 y: 130.00 z: -0.93
<-Bed x: 108.00 y: 130.00 z: -0.82
<-Bed x: 16.00 y: 130.00 z: -1.13
<-Bed x: 15.00 y: 240.00 z: -0.54
<-Bed x: 107.00 y: 240.00 z: -0.44
<-Bed x: 199.00 y: 240.00 z: -0.52
<-Eqn coefficients: a: 0.00 b: 0.00 d: -1.21
<-planeNormal x: -0.00 y: -0.00 z: 1.00
<-ok
<-echo:endstops hit: Z:-0.52

Looks like y axis at 240 is where the problem is (half of the other 2 y axis values). What, if anything, can or should be done to fix this. Thank you,
Matt

BTW, by sight the bed and everything else looks level (for what its worth).

 

Couple thoughts. Make sure there's no filament or anything on the bed when it takes those measurement points. Also verify the magnets are properly seated in the back

 

another note: there will be a difference between the bed being cold and hot when doing the G29 as well. I had a similar problem with mine as well, it ended up that the back end of the y axis carriage was broken, replaced it and noticed in the G29 that the last 3 of the bed leveling read low high low, that ended up being the printed plug/spacers in the corners that i did not transfer to the replacement carriage had to print new ones as the old ones were glued in and were damaged removing them.