Question about Mitsubishi Mr. Slim MXZ30TN Air Conditioner

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Fan coil unit not cold. msxy-09sv. The other four fan coil units are fine. This fan coil unit is working and all controls seem to be working fine except refrigerant did seem to come into the coil. No alarm or fault detected. Temp sensor seems to be OK. Fan is running but not cold.

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6ya6ya
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Posted on Jan 02, 2017

Sea Breeze
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SOURCE: Mitsubishi MSH12TH heat pump air handler 110v

Wireing this type AC with the wrong voltage, will damage more than the circuit boards. I think the installer wil need to be responsible for the damage he created. The factory will also try to get out of the replacement because of the installers lack of know how.

Posted on Oct 20, 2007

  • 143 Answers

SOURCE: Mr. Slim MSY-A17NA noisy interior fan

If the inside fan got loud because it developed mold, the only cure is to keep cleaning it.

Posted on Jul 26, 2008

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SOURCE: warm air does not come out of unit

http://www.mehvac.com/Products/subcategory.asp?ProductSubCategoryID=80&ProductCategoryID=7
Start at this web site and see if your operations manual is listed.
Hope this helps

Posted on Nov 22, 2009

kingbrizzle
  • 407 Answers

SOURCE: problem with mitsubishi air roof units

The thermostat would need to be insulated better from the air that is surrounding it. Im assuming that the thermostat is located on the wall unit where it blows out the air. This could mean that it is actually reading more from the outside temp, than whats inside the house. Another thing to consider is the location of the thermostat, even it being close to anything in the house that produces some kind of heat will effect the condition of the air. If anything, its the manufacturers mistake if it was properly installed in the first place and if defective, they should replace it. hope this helps.

Posted on Dec 28, 2009

  • 534 Answers

SOURCE: outside unit fan not turning no cold air inside.

Ok here we go. It is possible that the capacitor for that fan unit is out or the motor for that unit is out. Without the proper tools i.e. an electrical meter, there isn't really a way to test the unit. The remote should not have anything to do with the unit activating if the is a manual thermostat. I suggest checking to see if either the motor has gone bad or the capacitor has bit the dust. If you have the motor changed make sure to replace the capacitor

Good Luck on your repairs hope I helped you some\
Dave

Posted on Jan 08, 2010

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1 Answer

Freezer works....fridge doesn't


Hi,


Your refrigerator gets its cold air from the freezer by way of a fan that transfers air past the freezer coils to the refrigerator. If the fan isn't working the refrigerator will not get cold. I your coils in the freezer are freezing up this will also stop the flow of air to the refrigerator. The first thing to check is the fan.

Most refrigerator/ freezers are only controlled by one compressor (unless its a very expensive model). So if one is cold and the other isn't it's normally a simple problem.
First, check the temperature knob dials. Then check the seal using the dollar bill test or flash light test (described in link below).

You can also unplug the unit for at around twenty-four hours to clear blocked vents. Be sure to place some towels around the unit and prop all the doors open.
Defrosting your fridge should clear up any blockage in the duct as water and gunk often clog up the ducts. While you are at it clean the coils and the inside of your fridge and freezer.

Please accept the solution if it's helpful. Do get back to us for any further query.

Thanks for contacting fixya.com

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1 Answer

I have a Panasonic CS/CU-W18DKR - on cooling it works fine, auto aswell as fan, but on heating when it is on manual fan control it used to blow all the time, but not for some reason it only blows...


When the unit heats inside, the outdoor unit cools, and if the outdoor cooling coil gets too cold the system turns off indoor fan, and changes gas flow direction to de-ice the outdoor coil. Ensure both coils, and the filters are clean and if there is still a problem check system gas pressure for leaks.

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Model gss20iepcbb freezer side works fine ...fridge


on most units they have two controls refrigerator control is electric t-stat that runs compressor freezer control think of it as a door colder freezer door is barely open warmer freezer door all the way open all cooling coils are in the freezer and a fan moves the air to refrigerater side possible problem fan not running
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light switch broken light staying on door gasket not sealing tight find door switch press verify light shuts off and fan starts
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1 Answer

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Hi;
Your dehumidifier is similar to a refridgerator or air conditioner. It has a compressor and coils, and a fan. Basically, the unit has to **** in air with it's fan, and as the humid air goes across the cold coils, the humidity condenses in to water. If the coils are not getting cold, they won't condense any water, or if the fan isn't running, or the coils are dirty. If you check your unit over, see if you can tell if anything isn't working. Make sure the control knob is set at the highest setting. If the compressor lost it;s refridgerant charge, and won't get cold, it isn't probably worth fixing

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2 Answers

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If the compressor kicks on and runs fine, this usually indicates that the freon in the system is good. Is there anything else that can obstruct the air into the unit or into the cabin? I believe that this refrigerant will be R-22, and may be difficult or impossible to purchase without a license. I also think R-22 is sold in cylinders larger than you'd want. Check in your unit, though. If, by some slim chance, it is R134a, you CAN buy and install this yourself, but, again, I doubt it is. Your best bet would be to have a local technician put the gauges on it and recharge it. Be sure to check for leaks. If you're losing refrigerant, you need to get the leak stopped, or you are going to just throw your money away.
Best regards, --W/D--

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if the ac outside is working, but not the furnace, means there is a control problem with the furnace, check wires in the furnace, make sure there is a blower wire plugged into the contact marked cool on the control panel of the furnace

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Year 2005 cycling fan and compressor


Your unit is probably operating in defrost mode. When you use a dehumidifier in a cold room, the condensing coils can freeze water. The unit senses this and thus stops the compressor until the water frozen on the coils melts. Then it resumes its cycle. This is a problem you will have during the winter months. It makes the operation of the unit inefficient, but this is otherwise normal behavior.

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1 Answer

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set your unit to fan mode only, to thaw the ice, after the ice melts, look at your evaporator coil, see if its dirty, if its dirty, then you might just need a good cleaning. if the coil is clean, look at your thermostat setting. it should not be all the way cold. the compressor would run continously and it would freeze the coil. third, the refrigerant system could be partially clogged up or it lacks refrigerant. these problems initiate freezing of the coil.

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