Question about Mitsubishi Mr. Slim MXZ30TN Air Conditioner

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Cold air blowing on people-deflectors on mini-split available or other solution

Mitsubishi mini-split is blowing down on bed-directional louvers are not enough to move the air flow away. Is there a diverter or something to add to the unit to solve this problem?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: Mitsubishi Mr. Slim Mini Split MS-A12WA Indoor Unit

no sir gary,

the water would not go to the drain pan if you install it vertically.

water would just drop anywhere and would ruin a lot of things...
'

tnx 4 using fixya,

drcool

Posted on Sep 13, 2008

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SOURCE: I have the Mitsubishi split unit system with 24BTU

Ok, it can be two things.

  1. The outside unit needs to be washed with a water hose to rinse any dirt and debris that can cause a restriction in airflow over the outdoor coils. If they are allowed to get dirty, they can cause the compressor to overheat and shut down on thermal lockout.
  2. The unit has a small refrigerant leak and the unit doesn't have sufficient refrigerant for the system to run thus causing the compressor to shut down on thermal lockout. The problem with this one is that generally the inside coil will freeze up and you will notice that.
Compressors generally won't come on at all if they are bad. You can have a compressor go bad and still be running, but it won't cool at all. A bad install can cause a compressor to fail as well. Generally if the compressor fails within the first 10 years, you can bet it's because it was a poor install. This means that a proper vacuum wasn't pulled on the unit before initial start-up. Hope this helps.

Posted on Apr 06, 2009

  • 9 Answers

SOURCE: Vane control on Mr. Slim Remote

Pls put the vane on the position 2 and then manually turn the vanes to desired position it will not move until the time you turn the power off and you can enjoy the benefits of Mr slim....

Posted on May 26, 2009

  • 2 Answers

SOURCE: Split system getting cold at first then just not cooling the room

Split Air Conditioners are not meant to run constantly. so check this first . you may have a faulty component i.e. compressor, condenser, evaporator, or evap fan. Depending on your technician you may have gotten ripped off. You need to find out if he checked the system for refrigerant (gas) leaks. A good way to tell if your ac is leaking is feel the low and high side copper pipe in between the inside and outside units.
the smaller pipe (high side) should be hot be carefull maybe touch it with an ice cube. The Large pipe should be cold but not iced over.
if there is ice on any component you should call a qualified tech. you probably have a leak. you should also clean your air filters which are right above the vents. I am a certified AC mechanic and i have seen this problem. in Iraq because of ambient temperatures being high the systems take alot of abuse and we dont fix them because repair costs exceed replacement costs alot of the time. good luck.

Posted on Nov 19, 2009

SOURCE: I have a Mitsubishi Mr Slim model MSZ12UN. The

you must see the indoor fan and you must clean it very good as well all the indoor unit.

Posted on May 05, 2010

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Mitsubishi electric Mr Slim wall unit heat and air. strange smell coming out when air is on, we cleaned filters, but do not know where the heat exchange is or the the fan to clean them


Ductless split systems are know for creating a mildew looking "stuff" on the blower wheel. Try to open/move the louvers on the front of the indoor unit. By opening the "osculation blade"/louvers, you can see the blower wheel, normally blue in color. See if it has some mildew growing on it. If so, I found that a tooth brush and about 2 hrs labor does some good. I've found some aerosol spray, called mildew removal. Works great at covering up/controlling the smell. It's also possible that the unit is pulling air from the condensation drain line. These lines can for algae, and give us a sour yuck smell. To clean, use a wet vacuum, and clean from the outlet of the drain line. Hope this helps!

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Hi my friend,
1.check inside that can open the louvers down after 3 to 5mins starting outside
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How do fix a/c on 2003 yukon it blow cold then hot than back to cold


A few possibilities:
Stuck or inoperable Air-flow Diverter:
There are tow types of air-flow diverters: Vacuum Actuated and Slide-Cable Actuated (some will have an electric solenoid that controls a vacuum actuated type). In either case the default position of the diverter is "cold air" or closed - blocking air flow over the heater core. Sounds like it may have a vacuum actuated control - when it looses vacuum it will let the air-flow diverter swing shut blocking off air blow through the heater core resulting in "cold air" Could be a bad control/slider, bad or loose hose, or bad actuator. If you remove the blower motor assembly you will be able to see the diverter and might be able to tell the issue is.
Stuck or inoperable heater valve:
This valve controls the flow of engine coolant to/through the heater core. It is normally closed - blocking flow. This can be vacuum operated or cable controlled just like the air-flow diverter. Simple to check - in the engine compartment, to the left of the engine locate the cooling (heating) lines that go into the fire wall - locate the valve and check its operation.
Another possibility is low coolant level in your engine/radiator which may be too low to allow flow of the coolant through the heating coil, although you would likely notice that the engine was over heating/running hot.

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PTAC unit is blowing cold air directly on the bed. How can I deflect or reroute air towards the ceiling?


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1 Answer

Old PTAC unit blowing directly on bed. How can I deflect or reroute air towards the ceiling?


Get a folding partition wall to direct the air around the bed. Aside from moving the ptac unit, that's about all I can come up with since you don't want to restrict the airflow with any close quarters diverter.

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1 Answer

Horizontal louvers


Get yourself up to the machine on a safe platform. Remove any covers that will come off easy, or tie them up out of the way. Remov e the filters. Often the whole front can be removed by just taking out a couple of screws.
Once exposed, look for something out of place. Put the louver back where it belongs to see how the hinge works. It may have jumped out of it's proper position. Ease it back in position and check it for freedom of movement. If it looks good, put it all back together.

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1 Answer

My 2002 toyota highlander has good air flow, however when the airconditioner is operating, one side (passenger) blows cold air but the drivers side blows ambient air.


You might wish to check the diverter box to make sure that it's blowing the right air in the right places. Also, check the dash ductwork-they like to split.

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