Haier CWH18A 18,000 BTU Window Air Conditioner and Heater" Logo

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Nelson Peterson Posted on Mar 21, 2015

Unit runs continuously.

After the room is warm the fan continues to blow but cool air. The unit doesn't shut off.

5 Related Answers

Anonymous

  • 828 Answers
  • Posted on May 16, 2008

SOURCE: Haier ESA 3185 AC won't cool; makes escalating loud vibrating noise near front panel/ filter

Have someone check the run capacitor of this unit. If the run capacitor is bad over shorted it can cause the unit to run and short cycle on a current overdraw. This makes for an electrical imbalance in the compressor motor. Next step is the compressor is faulty.

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Anonymous

  • 1036 Answers
  • Posted on Jul 06, 2008

SOURCE: I bought a haier electronic

Hi,
It sounds as if the compressor (that provides the cooling) is cutting out due to either a faulty thermostat or is itself overheating.

Obviously check the thermostat is able to move between it's minimum and maximum levels, anthat this corresponds to the compressor cutting in and out.

With maximum cooling selected, the compressor should not cut out untill the thermostat says it's cool enough. If it does, there is a fault, and you have every right to a refund or a free repair/ replacement.

The fault is usually centered around the compressor electrical components if it is not under any warranty, but it should be. Even if the store does not want to know, the manufacturer should back it for 1 year.

Thanks for using Fixya!
If you need to attempt repair - ask again.

Anonymous

  • 1 Answer
  • Posted on Dec 10, 2008

SOURCE: Have a Haier water cooler

removed one of the two thermostats... the one that controls the temp in the lower refrigerated compartment. Now the water cooler functions correctly but the lower refrigerator is not cold enough to keep perishable food in it, but its better than it was.

Anonymous

  • 1543 Answers
  • Posted on Feb 16, 2009

SOURCE: GE refrigerator 12 years old runs continuously, exterior warm

Probably not. Newer (and I mean under 15 years old or so) refrigerators may run more % of the time than older units, but are using far less energy while running, so total energy consumption is actually less. The newest energy star models often use less electricity than a single incandescent light bulb uses if left on 24/7. If your run times are noticeably longer just recently, and there have been no other significant changes to account for it (like more and / or longer door openings or a warmer ambient temp., etc.) then you may have caught a defrost problem or bad door gasket problem early. The warm temp on the outer case near the freezer is to prevent condensation from forming in those areas, and is normal. (as a matter of fact, older refrigs often used low wattage electric heaters for that task, almost all newer units use waste heat from the cooling system to accomplish that task) Please don't bother rating this solution, as anything but a Fix-Ya lowers my overall score. Thanks.

Anonymous

  • 1515 Answers
  • Posted on Jan 15, 2010

SOURCE: Unit on but no cool air out

Hi, so what is happening is the compressor is not running. Being a new unit, I would say that you have a factory defective part that starts the cooling cycle of this unit that is not coming on when it calls for cooling. Just because it is new, does not mean you can't have a problem. I have seen on so many new units from commercial and residential roof top units that have never even been started, come from the factory miss - wired, faulty compressors, you just couldn't imagine what I have found in my 33 years working on these units!! Yes, all that is coming on is the blower motor on this unit. It could be many things causing this problem. Did you install it your self? If so, was the unit picked up by you or delivered and installed by a company? The reason I am asking this is, if the unit was layed on its side at any time during transporting to site, this will cause the compressor oil to drain from its crank case and mix with the refrigerant and cause compressor failure instantly. I am sure you no that when moving a refrigerator that you never lay it down that it must be upright? This is why. I don't know if this is the case. More then likely, it is a factory defect.Some of these units will have a built in time delay for the compressor not to start up for up to 3 to 5 minutes. But if you have been running it for longer then this, thats not the problem. Make sure you have the control set for cool and not fan only. This happens sometimes on accident. If it was installed by someone else, call them out to look it over and trouble shoot it, or install another one if it is new! I believe this might be a portable free standing unit? If so, and like I said before, if it was not upright at any time, this will ruin compressor. If it is a portable unit, take it back and exchange it. There are to many things that can cause this, and you would have to take unit apart to trouble - shoot these controls. Best to be done by a pro. Please, take it back for exchange. Please let me know what is up, keep me posted.
Sincerely,
Shastalaker7

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Related Questions:

0helpful
2answers

Until now this unit has never had the compressor run without the fan. Is the compressor running without the fan a problem? If so, what can I do to correct it?

Possibly a tstat issue. Run system until satisfied, once satisfied indoor fan shuts down compressor still runs remove tstat face plate and see if compressor shuts down. Another issue could be a sticking contactor for compressor. With a meter you could check at the contactor to see if you lose your 24volts for cooling but contactor remains pulled in.
0helpful
1answer

Cool air when running; warm air when compressor is off.

It sounds as if warm outside air is being drawn back into the room when the unit is not actively cooling. Portable units depend on room air to carry the heat outside, & therefore will not work properly if the room is too airtight. Provide a makeup air passage by leaving the door slightly open, & see if this helps. Use a room thermometer to see if your desired temperature is being reached. Note that if the wind is strong & coming from the wrong direction, it may not be possible to prevent warm air drawback.
0helpful
2answers

My unit blows out cool air for maybe 3mins. Then warm air

Normal ACs (non inverter) work in the following way
  • The AC compressor runs continuously till set temperature is reached in the room
  • The compressor then switches off, but the blower fan in the wall mounter unit keeps running. Durint this time the AC fan blows air out at Room temperature (which feels warmer)
  • When temperature of room rises then compressor starts running again. During theis period the air coming out from the inner uny is cooled by the condenser coils
  • And the process is repeated.... as long as you keep AC running
Ac works this way throught the operation period.
Now if you feel that your AC keeps switching off and on very frequently check the following
  • Your AC may be over powered for room *for example a 1.5 ton AC installed in a scenario where 1 ton is enough)
  • If there is voltage fluctuation in your area then the compressor may keep shutting don on large voltage swings
    • Solution: Get a Stabilizer
  • You have set the temperature setting too high. Max temp suggested for ACs is 25 degree Celsius, any higher will mean the compressor shuts down often. Remember every compressor shutdown and startup draws a high starting current
    • Set AC temperatures between 22 and 24 degrees Celsius
  • The thermostat/ Temperature sensor is faulty
    • Get unit inspected by Authorized technician
  • There is dust buildup on the outer unit / compressor unit. The dust buildup may cause overheating by preventing efficient heat exchange, This may lead to overheating of compressor and it shuts down to, prevent damage to itself
    • Get unit serviced by Authorized technician
  • The fan motor of the outer unit is not working properly
    • Get unit inspected by Authorized technician
Remember to get the AC serviced at least thrice a year to ensure smooth operation
Cool Thoughts... Cool Life !!!
0helpful
1answer

The unit does not shut off. Runs continuously even after the room is warm. Just blows cool air.

Probably a defective thermostat?
Or temperature sensor?

do you have make and model?
and I can help with more information...
0helpful
2answers

My Dometic Rooftop 15000 BTU Model 459516.701CO will come on and run and then shut off it continues to cycle within minutes of shutting off it is controlled by a Dometic Comfort Control Center 2...

THE OUTSIDE FAN MOTOR MIGHT NOT BE WORKING CAUSING THE COMPRESSOR TO GET HOT AND TRIP THE INTERNAL OVERLOAD IN THE COMPRESSOR - IF THE UNIT IS LOW IN FREON SAME RESULTS - WHEN UNIT IS FIRST TURNED ON DOES IT BLOW COLD AIR OR DOES THE AIR NOR FEEL COOL - JUST COOL AIR COULD BE LOW FREON - COLD THEN WARMS UP IS FAN PROBLEM
0helpful
1answer

Bought 4 small Gold Star units in 2009. One quit cooling altogether, one blows slightly cool while the longer another stays on the less it cools. One did not cool well when it was new. All filters are in...

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.
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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.
1helpful
1answer

My ge window unit is blowing lots of water out the front of the unit it is a new unit what can i do about this problem

You might try running the fan on a lower speed so that it does not blow so hard. Also, you appear to be in a high humidity area. Continue to run the unit to cool the room and as the humidity drops, The amount of water the unit is making will be reduced thus curing your problem.
0helpful
1answer

Motor and fan on exterior unit work once then do

im not qiute sure about this but it sounds to me like you are getting a hard lockout from high or low pressuers on the out side unit
0helpful
2answers

Thermostat ?

The Air conditioner are good only the adjustment of thermostat are the problem, select the thermostat in lower #3 you observe the thermostat will off in such time temperature reach to #3 If you full adjustment the compressor will not off.
In fan selector the compressor will autamatic off because no connection attached fan only .
1helpful
1answer

Dehumidify mode also cools

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?
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