I pull the trigger and my LED light flashes but the motor doesn't engage.

failing battery --trigger switch fail --damaged wire

The reason the light isn't green is because your battery is not fully charged - if you have charged it, the battery may be at the end of its life.
The reason it is not firing unless you depress the nose several times is because your fuel cell is spent - check the expiration date on the bottom of the fuel cell.

This is caused by a factory defect return the drill to a dealer.

try to switch a full battery look the carbon brushes try to turn on the motor to look its has no point with to heavy resist maybe a defect in the mechanism or electrical problem armature carbon brushes

A quick diagnostic check. First remove gas cell press nose against solid surface to dispose of any gas that may be in chamber.
1. Insert battery - LED should flash.
2. Press nose against solid surface - LED should be lit permanently (if still flashing possible fault moulded circuit board or fan motor micro switch lever, if flashing red green high possibility motor fault). Listen to hear fan running if not heard fan blade may have fallen off motor.
3. While still pressed against solid surface press trigger and watch LED - LED should blink off then light again (may flash red on guns newer than 2006) If does not blink fault either Spark unit (controller) or moulded circuit board trigger micro switch. To test for LED blink again release pressure on nose then press again. The blink indicates that a spark has been sent to the spark plug.
4. If 1 to 3 are OK problem most likely gas related or leak in seals. Ensure driver blade not still forward a possible fault of sticking forward after being dropped is nose slightly bent this traps the driver blade when first fired and does not return. (jammed nail gives a similar fault.) If nose is the fault it will require a new sleeve.
The moulded circuit board is normally cheapest then spark unit and sleeve roughly about same price the motor is most expensive.

Hope this has been some help to you.

Code 8: Controller problem. Also, check to see if your gearbox levers are engaged - if you can roll the chair by hand the gearbox is not engaging the motors.

pc board gone

Color of lights doesn't matter. If the main light flashes 10 times when the door reverses it is a door sensor problem. Make sure they are not flickering ever so slightly. Tweak them a little. On the rear of the motor unit there is a small LED. Check to see if it is flashing a code. It will flash a number of times, pause and then repeat. Near where that LED Is you will find the down force adjustment. Increase it about 1/4 turn and try. If the LED is flashing code 5 you most likely have a bad RPM sensor board which is a small printed circuit board just in front of the motor.

There are 2 motors that have to be put back in place one for the top & one for the top cover... If you have reconnected both & still have problems you can resynchronize the top by rolling down all windows, hold the top button in the close position before turning the key, turn the key on and wait for the windows to close & the red light to stop flashing.

If this doesn't work pull the release arm, manually lower the top, (to get into trunk the passenger side of the top cover needs weight on it to engage micro-switch to release trunk lock)

reconnect motors, hold the top button in the close position before turning the key, turn the key on and wait for the windows to close & the red light to stop flashing.

you have spark and cleaned tool correct, but fan won't turn that freely, if so the fan motor is bad, it should come on when you pull the trigger or move the roller lever for the safety. The fan is about 80.00 Let me know if I missed something and how did you check the spark?