We understand that your problem is: about the sanyo brand floor mounted unit 36,000btu..the operation status is on 14 amps L1&L2 discharge line is on 265 I charge about 3+kilos for the piping length of about 30ft...the problem is the suction line is vacuuming/suction line is on -10psi.. .

SOURCE: p8 eroor code

P8 error is abnormal pipe temperature indoor. If you are running it on heating P8 error will appear because the disc pressure is too high. It could be overcharged.

SOURCE: how to tell the size of my ac unit?\

thats a 5 ton ac unit

10AJA6001AH

basically 1 ton = 12,000 BTU

so 24 is 2
30 is 2 and a half
etc

SOURCE: 13 degree Delta T

I assume r-22 refrigerant by the pressure... you have a saturate temperature of approximately 41 degree and 71 degrees at the service port this equates to a 30 degree superheat. a condenser saturation temperature of 105 degrees and since the liquid line temp at the service valve is not given only the enterin indoor coil on the liquid line a 96 degree temperature this would equate to a subcooling temperatureof about nine degrees. You have too high of a superheat reading. verify that the bulb for the txv is correctly positioned and insulated. if it is then you need to remove the bulb from the suction line, hold it in your hand to warm it up and see if the superheat changes. you could also have issues with your ductwork. If the supply temperture is around 50-55 degrees then the unit is doing all it can.. Check the txv and the ductwork as the subcooling indicates that the condenser side is doing it's job, but the superheat readings indicate that you are starving the evaporator..

SOURCE: AC unit Amcoraire AOS241HX

these should be seperate circuits so lets forget the condensing unit for a moment. It should not come on because it gets the control voltage for the contactor from the indoor unit. Check your circuit board for a 3 or 5 amp fuse and make sure it hasnt blown. If it has you will get nothing past the board. If that isnt the case, you will have to start checking for supply voltage from the panel to the disconnect at your furnace, disconnect to board(transformer may also be bad) the blower motor. transformer, and circuit board are the only components indoor that effect the outdoor unit.

SOURCE: unit not cooling well both suction and discharge

the "Discharge" line sweating on a mimn split is normal all of the flow metering is done in the outside unit . as to it not cooling well are the filters clean? if they are you more than likely have a leak and need to get is serviced