Use a toothpick or some other small device to clean out the top puncture needle on your Keurig. Then run one cycle with no coffee just water, and it should work again.
try fuelpressure regulator
fix the vent fix the vent
I think you being chased by problems and there coming closer to fix.
In direct piping arrangement will fix it
leave the ac off. U should probably check it at our local dodge workshop, to fix it :)
Employ a plumber.
think the drain may be slightly blocked. Your best bet is to call a plumber now to fix it. If you leave it too long you may have toilet water coming up in other areas in your house. You can try to fix it yourself but most of the chemical treatments don't do a lot.
assuming this is Home AC question - speed up the AC fan speed
you cant do anything about it.
Small bit of demolition may be required. Take the tap trim off the tap and see if you can definitely see water coming from behind the wall. The water may only leak when you have the taps on so try that too. Once you have seen the water coming out from behind the wall, you will have to remove the wall and expose the breeching piece, copper and brass assembly behind the wall and repair it by brazing it or get a plumber in to repair or replace.
NO
You probably can't. If it stops working, it is broken.