Unit not draining properly wanting to know if I can drill small hole in bottom of unit and which side so it will drain its 110 window unit

I've repaired a lot of window units because someone has drilled a hole in the pan, to drain water, and hit the coil. Please do not drill any holes in anything! These units utilize condensate water to help reject the heat in the outdoor coil. If water is reaching the outdoor fan, it either does not have the proper "lean" or slope, or it's designed to allow water to reach the fan, and not much you can do. If it is designed to allow water to cool the outdoor coil, and you were to drain that water so that no condensate water cools the outdoor coil, this will allow the unit to operate with an excessive outdoor coil temp, and shorten the life of the compressor, or cause the unit to operate poorly/warm supply air temp. Try to give it just a little more "lean". Hope this helps!

Just a suggestion if you don't want to take your headlight off to try and drain the water, take a small drill bit and drill two holes in your headlight one on the bottom on the side where the water lies the best and one on the top so it can let it run out good, not no big drill bit but one that will let it drain good, won't hurt your headlight.

What is the make of your wagon? Regardless you shouldn't be drilling holes anywhere. Check your rear window seal, tailgate or lift gate seals.

There are small drain holes along the bottom of the door, and it sounds like yours are clogged. Inspect the window seal along the rear edge and along the bottom window seal where the glass meets the door.
Another option would be to drill small, additional holes along the bottom of the door. If you do, make sure you locate them on the outside of the rubber seal. Otherwise, the water will drain inside the car. Hope this helps.

Here is a thought, received by me from a AC mechanic recently. Window ACs no longer actually drain concensate. Rather, the water is caught in a pan with the idea it will evaporate back into the outside air. The reason for this is the dripping water frequently resulted in the growth of algae below the unit resulting is unsightly stains and sometimes, slippery conditions. Evidently, there were a lot of complaints about being 'dripped on' also. So, AC manufacturers don't put drain holes in the bottom any more. If the pan over fills, it will spill out of many makes. If you want yours to drain, put a hole in the bottom.

Like I said, just a thought.

Thanks for your question @ FixYa.com

No drain holes on most units that size

The water gets from the front evaporator thru
a small hole you can not see

Then it finds it's way to the outside or back on the
bottom metal pan

It is evaporated by the condensor fan

It may drain out over the rear pan lip, if
it gets alot, but no drain hole is necessary

You can angle the unit down at the outside or
rear & you can drill a small hole, but it uses the water
to cool the condenser

The A/C unit should be tilted slightly to the rear and this will allow the water to leak to the outside of the window, you may have to drill a small hole in the case to drain if there is no pre-existing hole.

The drain hole is likely clogged with lent and trash. Make sure it is level or leaning dow a bit on the back side. I had to drill five holes in the bottom rear of my old window unit to stop water draining down the insdie wall. Make sure you dont drill into a usefull component of the AC or kiss it goodbye.

For some reason, newer AC window units no longer are made with a fluid drain. I think the intent is for the unit to be mounted at a sufficient angle (it MUST be angled back so the fluid drains toward the back of the unit) that the rear (outside) fan kicks the water over the condenser coil and gets rid of it that way, it also increases cooling ability slightly in this manner by misting the condenser coil. I would suggest increasing the angle of the back tilt by adding a 2x4 maybe under the unit to allow it to tilt? Alternately, you can drill a hole in the rear corner of the unit to drain fluid, but this is not recommended for several reasons...

1) It will usually cause rust to start at the drill hole.
2) you could accidentally puncture the coil system while drilling
3) the manufacturer did not make a hole, because one was not intended.

well lets work with it becouse that the one you have..first let me tell you dont make that hole becouse the water that remaing in the tray is use to cool down the condenser and beleve me its a good idea..its not supouse to condese more water thant he can evaporate..but try to screw a littel bit more the two screw in the back of the cabinet to down the cabinet 10 degrees more to see if that help you...good luck