We have an Amana ptac unit in our sunroom. Normally when it is on Cool it will drip water on the outside but it is now dripping water on the inside and looking into the unit from the back I see water inside. I'm not at home now and don't have a # for the unit. I've had my children turn it off. What should we do?

Post edited for clarity and spelling.

A 'CO' Error is normally a Communications Error from the inside unit to the outside unit. Turn off the power to both units (normally a breaker interrupt outside, looks like a fuse in a waterproof box) for 15 minutes. Then wait 5 minutes for self test and reset.

Dripping is another issue. Blocked drain, or it isn't defrosting when needed.

Error Codes can be specific to each make. The search query for this is;

make model CO error code.

https://www.google.com/search?q=Split+System.Code+%27co%27+error

..

NO
the water is condensation from the humidity in the air turning to water on the cold evaporator core
normally it drips into a tray and drains away outside
if it is inside ( running down the walls it indicates
the drain hole and tube is blocked or the evaporator core is covered in gunk and holding the water up and not dripping where it is designed to
Call an accredited ac specialist shop to clean the fins and drain tube

your relative humidity outside and in is low so it's not condensating on the coils is the only thing I can think of.

It sounds like you have a central a/c that has part of the system, the compressor, condenser coil and fan outside on the ground, and the rest inside. The inside part, the evap coil, normally uses the same circulating fan as the heater. If this is the case, then locate your heater access and you should find the evap coil and its drip pan in the duct work.

Normally, an Air Conditioner removes water from the air and that water condenses on the coils of the inside section that does the cooling. The water condenses on the cooling coils just like moisture condenses on the outside of a glass of ice water.
This excess water drains out of the cooling section through a "drip tube" and is supposed to drain outside of the house, or a drainage system. Your "drip tube" has either not been installed (if it is a brand new installation), has separated and water is now dripping into the house instead of outside of it. Or it is clogged. This happens when algae builds up inside the "drip pan". If that is the case, you can purchase "algaecide" tablets which kill the algae that is clogging the drip pan and preventing water from draining out through the drip tube. These tablets can be found in many hardware stores, refrigeration supply companies, or even Walmart. You can put a tablet inside the pan. (You will have to remove the cover of the unit). You can often use a little bit of Bleach and that will act as an algaecide. Hope this helps,
Best, Mark

water dispenser -Your water inlet valve on the back where the water supply comes in is probably leaking. disconnect the water line coming out of it and see if you have a slow drip. Try the dispenser to see if it's just drips after use.


ice maker - If it overfills and drips, look for an adjustment behind the plastic endcover with a +/- on it. - is less water.

If it continuously drips, replace the water inlet valve on the back where the house water supply comes in.

all air conditioners condense water .. the water is normally drained to the outside thru a hole near the outside bottom of the unit .. the unit has to be mounted so that it doesnt tilt inward .. the drain hole has to be cleaned once in a while ... if its clogged or if the unit is tilted inward then the water will drain inside the house .. less likely but possible is a cracked or damaged drip pan inside the unit ... thats a shallow pan under the condenser (cold) coil that captures the water and directs it toward the outside drain .. so check the tilt and clean the drain

PTAC temp drop should be 20 to 25 degrees across the coil. They never put a service tap on these units. I sell Amana PTACs. You may be alittle low on gas. Check your air TD and that will tell you. The compressor may be overheating due to lack of cool gas to cool the comp. May need a service tech but get a free estimate first. Rus

Hi Julie,
Is this a newly installed unit? The problem sounds like the sleeve is improperly installed. The sleeve should slope approximately 1/4 inch downward from inside to outside. This way the water will run to the back of the pan where it will be picked up by the slinger fan, or drain to the outside. Most likely this is the cause, not the styrofoam pan. If you need further info, you can contact me at greg.mcnary(at)airdistributors.com (replace (at) with @) and I can get you detailed installation instructions.

Greg McNary
Air Distributors Company, Inc.
Distributors of GE Zoneline PTAC Units and
McQuay PTAC Units

My suggestion is to NOT pull the plug on the drain that should be covered with a sign that says...do not remove plug. Water is supposed to be kept in the pan. The interior wheel then helps the water keep the condenser cool....Ron