What would cause moisture to collect on the inside of my house windows. Im in illinois, its cold and the furnace is running. It cant be good to have this water on the windows. It drips on the wood. Does this have to do with the furnace?

Stopped up defrost drain

Air contains water molecules. Cold air has a lot more than hot air does. When you heated all that cold air the moisture was squeezed out in much the same way water accumulates on the window glass when hot air interfaces with cold.

All window air conditioners will remove moisture from the air if there is any. Most window air conditioners collect this moisture in the bottom pan of the air conditioner and attempt to evaporate the moisture. The evaporation process works as follows: First, the water drips down off of the cold evaporator coils on the front of the unit. Then the water collects in the bottom of the air conditioner base, the "pan." If the air conditioner is installed properly it will be tilted slightly back.

The water then collects near the back of the unit. On some units, the fan blade used to cool the rear condensing coils will have a rim on the outside of the fins of the blade. This rim, or "slinger," will come close to touching the inside of the air conditioner pan when the fan is spinning. As the water collects in the pan and reaches the depth necessary for the fan ring to touch it, the ring will lift some of the water up and the fan will blow it at the condensing coils. Because the coils are warm, they will evaporate the moisture to the outside.

While this is happening it is normal to hear water splashing and sloshing around. As long as there is no water leaking inside the room that is being cooled there is no cause for concern.

Never drill into the bottom of and air conditioning unit to "let the water out."

It may be that the humidity level or temperature in the room where your dehumidifier is located is too low.

When the outdoor temperature is below 50 F, the indoor air will be dry even when the air inside is warm, therefore when it's cold outside the dehumidifier may collect little or no water.

Air conditioners will also remove moisture from the room, even if it's hot and humid outside, resulting in little or no moisture collecting in the dehumidifier bucket.

Some dehumidifiers have a deicer which turns off the compressor but keeps the fan running. When the compressor is off, moisture is not removed from the air. The deicer turns off the compressor when the room temperature is cold.

Some dehumidifiers do not have a deicer. If the room temperature is low enough, ice may form on the evaporator coil. The ice prevents the dehumidifier from removing and collecting water. If ice forms on coils, unplug dehumidifier until ice melts and room temperature rises.

The filter (on some models) may be dirty or clogged. If so, clean the filter. For instructions on cleaning the filter.

I hope this help to solve, if this answer solve it, remember to rate it. Good luck.

Yes, The air conditioner evaporator core inside the vehicle is very cold when the a/c is operating and moisture will condense on the outside of it, especially on a humid day. This moisture then trickles down the sides of the core and collects in the plastic housing beneath the core where it then escapes through the evaporator housing drain tube and drips on the ground beneath the passenger side of the chassis. The more humidity in the air the more moisture you will see dripping onto the ground. If the little drip hose should ever get plugged up this water then will overflow the housing and drip on the passenger side carpet so if you ever have that problem you'll know what the cause is.

Hello WPwilkers, Well there's good news and good news!

First off, you should probably use the lowest possible setting as your house being so new, is likely pretty "air-tight" and as such, doesn't have a lot of air infiltration (gaps and drafts) hence the reason you're seeing moisture on the windows.

Now, I would also use a hygrometer, just like your parents likely had hanging on a wall somewhere in their house. It will give you a better idea of the moistur (humidity) around the house. My guess is that you're already at the 60%+ level of humidity.

I suggest that you turn "OFF" the furnace mounted humidifier, until you no longer see moisture on the windows. That will allow the house to adjust and get back to normal humidity levels.

Then you can start by setting the humidifier on the lowest possible setting and keep an eye on the moisture levels in your coldest room of the house, as that is where you'll first notice the excessive moisture on the windows (just the way it works - cold rooms get condensation on the cooler windows first).

If you don't have the humistat (the control for the furnance mounted humidifer) mounted next to your heating and cooling system thermostat, you should do that - it will make it easier to adjust and also will provide a more accurate reading for the humifier to operate properly.

Some Thermostats have the ability to add a humidifier on it for integrated controlling of the furnace humidifer. Check your Thermostat and Furnance owner's manual for details.

I used to have the same problem and found that by moving the humidifer control from the utility room (mine was in the basement of my house) to the living space, it made a big difference. Since most people's homes have unfinished basements and that's where the HVAC system is located, it doesn't get the same humidty readings as an occupied living space.

The other reason that you tend to get moisture (condensation) forming on windows is that the Percentage of humiditfication is set manually with the humidifier control, and yet, the outside (and inside) air temperature vary and the difference between them can cause the humidity levels to go from very dry to very moist, in a day or two.

I tend to wait until I notice that the air inside the house is getting dry and then turn on my humidifier, once the cold winter days have taken hold. In summary, nothing wrong with your unit, just mother nature and a well built (most air-tight) home are giving you higher levels of condensation than most older homes. Gradual adjustments, once you turn the humidifier off for awhile, should get you the desired results.

I hope you find this Very Helpful and best regards!

Really not efficent to run a heat pump at those temperatures. Below freezing is not good for the compressor in the outside unit. The humidity in the house with the low temp. is causing the condensation on the windows to freeze. Kinda like an air conditoner does in the summer without the freezing humid air from the house goes over the cold a/c coil and the moisture condensates on the coil running down to drain pan. raising the temp. in the house and lowering the humidity should help. I would also recommend running the electric heat in low outside teperatures.

if it seems to be running normally except no cooling , is the fan in the house running????...Is the house Cold and damp???.If there is no cooling and you know that the compressor and everything else appears to be normal then you likely have a Refrigerant leak and that will cause no cooling.....Usually a very expensive repair...if your unit is 5-10+ yrs old you likely need a new "A" coil.

It is normal for water to collect in the lower base of an air conditioner. See the section entitled: "There is water sloshing around inside." If water leaks out the front it is usually because the unit is tilted forward in the window frame. All air conditioners should be installed so they tilt slightly back to allow for proper removal of the condensation collected.

There is water sloshing around inside All window air conditioners will remove moisture from the air if there is any. Most window air conditioners collect this moisture in the bottom pan of the air conditioner and attempt to evaporate the moisture. The evaporation process works as follows: First, the water drips down off of the cold evaporator coils on the front of the unit. Then the water collects in the bottom of the air conditioner base, the "pan." If the air conditioner is installed properly it will be tilted slightly back.

The water then collects near the back of the unit. On some units, the fan blade used to cool the rear condensing coils will have a rim on the outside of the fins of the blade. This rim, or "slinger," will come close to touching the inside of the air conditioner pan when the fan is spinning. As the water collects in the pan and reaches the depth necessary for the fan ring to touch it, the ring will lift some of the water up and the fan will blow it at the condensing coils. Because the coils are warm, they will evaporate the moisture to the outside.

While this is happening it is normal to hear water splashing and sloshing around. As long as there is no water leaking inside the room that is being cooled there is no cause for concern.

Never drill into the bottom of and air conditioning unit to "let the water out."

if this helps please give me a fix ya