I have a R5203 gold star air conditioner, and the room does not get cold any more, also do you have to replace any fluids, its sounds dry and crackling.

compressor or thermostat.

http://www.appliancepartspros.com/partsearch/frame_diagram.aspx?diagram_id=28700000&pkw_=basket&model_id=5520000&NewWindow=1

Download this illustration and then using a good multimeter start basic troubleshooting.


All residential window air conditioners have a cooling system made up of four primary components, a compressor, an evaporator fan, a control or switch, capacitor.When the thermostat is calling for a colder room temperature the compressor is energized. It is normally very quiet. The evaporator is always located on the front of the air conditioner. It also has silver fins. Be sure it is clean. Use a foaming type cleaner and rinse with plain water. Because the evaporator is absorbing heat, it is very cold to the touch. The temperature drop causes any humidity in the air to collect on the evaporator - sometimes called sweat. There is a fan inside the air conditioner that circulates the air for the evaporator and condenser coils. The circulating fan and compressor are running simultaneously. The fan motor has two fan blades attached to it on either end. The fan blade on the inside part of the unit continually draws room air over the evaporator coils, which are cold. The fan blade on the outside part of the unit continually draws fresh outside air over the condenser coils, which are warm. Because the evaporator coils are cold, they cause moisture in the room to collect on them, much like a cup of ice water on a warm, humid day. When the amount of moisture increases, it begins to drip down off of the coils into the bottom pan of the air conditioner.
If the compressor fails to start or the fan you may need to replace the capacitor.
You may need a hard start kit.



Thermostat control The thermostat on a window air conditioner works by sensing the air temperature entering the air conditioner. As the air entering the unit reaches the set temperature it will cause the compressor to turn off. The blower may continue to run depending on the selection chosen on the control panel. Digital thermostats work on a similar principle but display a more precise temperature.
Test for continuity with the multimeter between the two terminals . Warm you should read continuity (contacts closed). If not change it.
Selector switches The air conditioner selector switches allow the user to choose the fan speed. The compressor always runs at the same speed regardless of the settings. If low cool is chosen, for example, the fan runs at a slower speed but the compressor still offers the same cooling capacity. There are other switches to control louver operation and other features on some units.

All air conditioners act somewhat like a dehumidifier. They take in room air, cool it and send it back out. During this process, part of the humidity goes into the condensation pan under the AC unit and is drained away. That's part of how they produce cold air. It's not as efficient as a separate dehumidifier, but it helps a little.

Hope this helped to answer your question. Thanks for choosing FixYa.

Dry is a dehumidifier option. There is a heating element in the unit to heat the cold air back up. The cold evaporator coil causes the moisture in the air to condense on the coil (this is why the AC leaks water) and the air coming out of the vents will be cold. If you are not wanting to lower the temperature in the room but want to take out the moisture then use DRY. All ACs take the moisture out of the air when they are on COOL. So, COOL drys the air and makes it cold. DRY drys the air but warms it back up before sending it out the vents.

this is not a water leak ! it is the humidity in the room which collects as water and drains out at the back.keep a bucket underneath or attach a drain pipe to the outlet .

the AC unit is not level. the ac should sit level front to back... if it is leaning into the room even at the tinyest pitch, the water will run into the room. the ac should NOT be tilted backwards either, they need to sit level. take it out, and put it back in...

sounds like it does not have enough BTUs
so many BTUs can cool somany cu-feet if sealed space
Like leaving the freezer door open too seal that room

Here are some icon that may help you.

COOL- this icon cool your room.
Dry- this icon control the humidity in your room but limit the coolness in your room (24deg C).
Fan- this icon run for fan only.
Heat- this icon heat your room.

sounds like you low on freon, you will need a qualified tech to refill the freon.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/stephen_171aeeebef53a898

Some units do cool/dehumidify only im afraid why cant you let the unit dump its hot air into the room then it wont heat or cool the room?