I hadn't had a chance to get back to my lift issues. I double checked orientation of the tilt sensor and it was correct to match the service manual (which I have). I did get a digital angle meter and I was well under the 2° and 3° parameters (under 1 both ways). I have since replaced the sensor. It still safetys out at about the 10' height. The manual also said to check the voltage and it should be 2.5 V DC between 1 set of wires and I think 2.34 between the other set which seemed odd to me. My readings are 12.5 and around the 12.34 I don't know if this is a miss-print like so many others or if that is correct. I am about out of ideas and solutions as to what is causing the issue. The machine just does not seem to recognize the sensor. Any suggestions? And again thanks in advance.

Mine would be the latter. Thank you again. I figured I might have that wrong and would guess I probably do. At least at this point I know what I am looking for and what to check/change. I have all service manuals so I can double check them. It is getting to be where no one is a mechanic anymore most are just parts changers until it works. I have spent countless hours with Genie techs and they are instructed to not help anyone that does not have a dealer ID, which is stupid, but I have found a few really good guys that were helpful that ignored that , thank goodness. The first problem was a frayed, not broken wire from the tilt sensor. It showed continuity but the ECM would not recognize it. I found that on my own, no one ever mentioned it. Hopefully won't need your help again on this but it is certainly appreciated.

your welcome, glad i could help
i know how it is dealing with genie tech service, they always use the standard check sheet and have you go through most everything you've already checked.
Anyhow, if you removed that tilt sensor and got the orientation out 90 deg then yes it would have an effect on how the sensor performs. Also the wiring, as long as you wired it back correctly which is hard to mess up being the wires are color coded, it should be operating normally. Hook any of them up wrong it just wouldn't work.
It sounds as if you may have mounted it back in the wrong orientation.
Plus i need to clarify something on the sensor parameters, the degree range varies depending on when the machine was made and if it is outrigger or not.
On serial numbers before 41754 the tilt sensor range is less than what i had stated previously, the ranges are totally different 2 deg to the side, 3 deg to the front and 5 deg to the rear. On models after serial number 41735 it only has limits 2 deg to the side and 3 deg to front or rear.
the X and Y axis needs to be set properly in order for it to operate correctly.
In every case in the diagrams i've seen from the service book (which you can get from genie's website) it shows the X axis points towards the steer end and the Y axis being the side to side sensing. There should be a marking on the sensor telling you the X and Y axis configuration.
Once you get it mounted in the right orientation then setting the level should be easy.

First of all thank you. This is the advice I was looking for. I understand the parameters of the tilt sensor but wasn't sure how to check them. This unit does not have outriggers but I have had other units of the same model/type and they did not seem to be this sensitive. Another question, I had to take the tilt sensor out as it had a bad wire connection with the 3 adjustment points on it does it matter how they are oriented to the machine? I wouldn't think so but wondered if it might affect the adjustment or sensitivity. Thank you again.

the tilt sensor envelope on most genie units is not very much before it triggers the safety protocols and disables lifting height. I believe the maximum tilt it will allow before it disables the lift is 6.6 deg front to back and 10.6 deg side to side as listed in the performance specifications in the service manual.
If you're out of that range there's nothing you can do about it, and i doubt anyone will suggest anything to help you alter this safety feature.
What i would do is get a digital level and check the range on the level sensor and make sure it is triggering at the correct level offset. If it does not agree with the specifications then your level sensor is most likely faulty and should be replaced.
Does your unit have outriggers? Some have them, some don't.
If it does then those have to be set to level up the machine before lifting can be resumed.