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Inside unit sweats during daytime hours - Heating & Cooling

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Dont shut it off at night.....humidity is too high indoors.

Posted on Aug 05, 2008

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1 Answer

Unit not cooling inside below 72 degrees lines sweating


how hot is it outside??? 20 degree split is usually the norm ,,,,,outside 95 then inside will be 75,,,,,where is the line sweating ,,, it should sweat near outdoor unit

Jun 02, 2014 | Ruud Central System Air Conditioner

1 Answer

Acq158xr1


That is typically a tale tale sign of ice. Thaw the unit by circulating the fan for a few hours. That's the easiest and cheapest repair.

Jun 24, 2013 | Whirlpool ACQ158XP Wall/Window Air...

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I have a ten year old carrier heat pump unit. I recently replaced the indoor tstat. the outside contact and the transformer. Had a tech put freon in the unit also. I have to problems one is the airflow is...


Two things are the most likely culprit. First check ytour inside coil with the unit running for 10 minutes or more and see if the coil is sweating there should be water running off of it. Also after one hour is there ice forming on it. These problems are lack of air flow which is caused by restricted air flow caused by a dirty filter dirty coil (which you have already taken care of) or your blower motor may not be kicking into high speed. Your motor will start and then after it gets to a certain speed it switches to a high speed. After running only 15 minutes if your blower motor is hot to the touch. Be careful some will cook an egg. If it is hot not just warm it is bad and needs to be replaced. Also if the fan is not running properly you can not get reliable readings with your gauges when adding freon. So if this is the problem then you may have to have the units freon cked again. If the line is not sweating at the outside unit where it goes into the unit the freon pressure is not right. The larger copper line will be cold and sweating the small line will be hot to the touch when the system is balanced and running properly. I hope this helps

Aug 23, 2010 | Heating & Cooling

1 Answer

What is the a/c charging pressure on roof top r/v units?


The easiest way to charge a unit is to add freon to the low side until the line sweats and the coil is sweating top to bottom. The pressure depends on the wet bulb temp on the low side line the ambient temp outside and the intake temp inside the
RV. A good unit will start to sweat between 50 to 78 pounds on the low side. good luck

Aug 11, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

I have a Ruud 2 ton split system and the system will not cool. The compressor and fan on the outside unit works and the fan blower on the air handler works too. The temp on the lines coming into the...


The small line coming in from the outside unit should be warm to hot and the larger line should be cool and sweating with water forming on it. I am taking for granted that the unit was working if so it sounds as if the unit is low on freon. your inside coil should be sweating a lot from top to bottom if it is only cool or sweating on the bottom but less to nothing up top you are low on freon. When very low the unit will stop working just like a broken valve in the compressor. If it is just a little low it will not cool properly and at night it might even freeze the inside coil up.

Aug 08, 2010 | Ruud Handle Air Conditioner

1 Answer

Outside unit runs all the time set it on 70 during DAY and it still gets up in high 70s t


Pleas note, proper sized units may only reach a 20-22 degree split from inside to outside temp differance. This done so that moisture is removed thuss making us feel cooler. Sound stupid but our bodies feel cooler at lower humidity than higher. When we sweat the water on our skin eveporates making us feel cooler. It might be better not to look at the thermostats set tempature and maybe just walk inside and out of the house so you can feel the differance. As always you should have a professonial check the system and keep your filters clean.

Aug 02, 2010 | Comfort-Aire Heating & Cooling

1 Answer

Its gets up to100 during the day here right now. my ac is set on 78 and comes on at noon and does not turn off till at least midnite. the temp on the thermostat stays at 80 untill after midnite. ...


Check the outdoor unit you should have hot air discharging out the top of the condensor. The insulated suction line should be sweating. The inside
coile should be condensating and water should be flowing to a drain from the indoor unit.

If all of that is happening, then I would say you now
have a ubdersized unit. If none of that is happening
then I would say you are low on refrigerant.

Jun 24, 2010 | Goodman CLJ30AR32 Air Conditioner

1 Answer

My domectic roof top air con is getting condensation on the plastic cover inside the van


Hi; Is the drain for the condensate draining. You will have to check the top unit to see if water is present. You can also check the air filter to see if it needs to be cleaned. Please only use a household cleaner and hot water on the filter screen. Also what is the inside temp. when You notice the sweating. If Your in a very humid climit some times the unit will sweat until it can remove excessive moisture from the inside space. Also does the tstat seem to be working normally and holding temp. ...alpharome416

Feb 22, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

Heat Pump


Your inside cooling coil in the air conditioning mode could be frozen over. Change the fan setting to on and operate it that way when in the cooling mode. Turn the air conditioning OFF with the fan ON to clear the coil of frost which should take about 1 hour.

The fact that you have sweat on the large line means that the temperature of the gas inside the line is below the due point of the moisture in the air. A good tech would measure the pressures and temperature of the system to get what is called superheat to determine proper system charge of refrigerant.

Jun 14, 2008 | Heating & Cooling

5 Answers

FREEZING COILS


Hi, Sounds like its low on refrigerant. Could also be restricted air flow inside. Turn the AC off and the inside fan on for about 3-4 hours to thaw out the evaporator. Replace the inside air filter. If you can see the side of the evaporator that the air goes into, check to see if it has a blanket of fuzz on it. If so, It can be cleaned with a credit card while its wet by scraping along with the fins. Turn the AC back on and let it run for about 20 minutes. The large line outside should sweat all the way to the compressor but the compressor should stay mostly dry. There may not be anything wrong with you unit. When it is cooler at night they will sometimes freeze if the thermostat is turned down too low during the night and the air restriction will not let it thaw during the day. Hope this helps. kstfas

Sep 19, 2007 | Carrier 38CKC042 Air Conditioner

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