Gold Star about 4-5 yrs old. I pulled a stunt one day on this unit. It
had water in the bottom and the fan was hitting the water. I got the
bright idea of drilling a hole in the bottom to let the water out. You
guessed it I hit the tubing. Question is where can I find the valves to
put the freon in to buy, for I can't find them on this unit. I was told
some of these small units don't have valves. I can solder , have done
it for yrs. I hate to throw it away when I colud fix it for a fraction
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The water and noise you hear is from the fan blades hitting backed up water in the drip pan. This occurs when the drain hole near the rear of the drain pan is clogged and/or the rear of the unit does not have enough downward tilt. Which allows the water to flow freely to the drain hole. The general rule of thumb for downward tilt is 1/4" to 1/2". Correcting these to things should solve the problem. Be sure to turn the unit OFF & Unplug it, before attempting remedial service work on the unit.
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Download this illustration and then using a good multimeter start basic troubleshooting.
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.
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
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."
AC units do take the humidity out of the air and water collects in the bottom. The unit should be tilted slightly downward on the outside so that the water runs outrside. Make sure the drain holes are clear. The pinging noise is common, the fan is hitting drops of water, nothing to be concerned about
Has someone told you A/C units need water? This I've never heard of. The water you see dripping from an A/C unit is the condensate dripping off the evaporator -- it's removing water from the air when it cools it.
stuck up motor,could be capacitor check this out and replace.
could be relay.if defective replace.the motor has star winding after replacing capacitor and humming again,check start winding,if high resistance,replace motor.have a good day,rate me if your satified to my suggestion,thank's a lot