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Misakae Split system Indoor unit not blowing air

Hi guys, My girlfriends outdoor compressor seems to be working ok. However, the fan on the indoor unit will not blow any air at all. It sounds like it wants to but no air blows out. When I touch the coil, it seems cold and a little wet. Will clean the filters and the coil and have also tried tripping the switch board but it doesn't resolve it. Is there anything else I can try prior to lashing out and getting a new splitty? Thanks for your help!

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 230 Answers

SOURCE: hi the outdoor unit turns

My gut says that this is evidence of a bad control board(circuit board). As usual, double check that your batteries are good in the thermostat. I have seen some weird things happen when the batteries are low. This one may be a job for your local contractor.

Posted on Jun 23, 2008

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Speed boy
  • 76 Answers

SOURCE: York Mini-Split Not Cooling? : (

This can only be a gas problem.
the split units goes on on and off if a shortage of gas is involved, the chances that you would here it wont be that big for the fans would make too much noise.
get a repair man for a re gas and all is well.

Good luck.

Wouter.

Posted on Oct 22, 2008

  • 6 Answers

SOURCE: fan coil unit won't cool or heat in room1 while room2 runs well

could be undercharged, or overcharged, or wires weren't put back on valves in unit.

Posted on Feb 16, 2009

  • 24 Answers

SOURCE: One of the indoor units blows air which is not

Sounds like the metering device in the one that's not working is clogged and not letting the refrigerant flow through the coil.

Posted on Oct 04, 2010

  • 414 Answers

SOURCE: I have an Intertherm S3BA-048KA Split AC system

First thing I would look at is to make sure you have power at the disconnect 110 coming
in on each leg to unit. Second, I would look at the capacitor for obvious bulging or leaking
Third I would check to see if the contactor has burnt points or bugs in it. Your disconnect
may have fuses in it which may have failed as well .

(All checks of the unit with power off to all breakers as there will be more than one
double breaker supplying power to the unit).

The hum you hear indicates that the contactor is pulled in on the outside unit but still may
be burnt or have ants or earwigs especially in between the contacts

. The capacitor can hold a charge even after equipment is off so discharge it to the chassis
before removal. Replace only with same Microfarad rating and equal voltage or higher
Remember to mark the wires as to which came off the HERM / C/ FAN terminals or take a
cell phone picture.

I have just replaced my intertherm condensing unit after it had it's 3rd compressor failure.
It was more cost effective than buying a compressor and hoping all the other components
were going to last.

Posted on Feb 27, 2011

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1 Answer

3 split units run from one compressor one is not cooling


If there is 3 indoor units from one condensing unit
(6 pipes at outdoor unit) this is classed as a multi unit

All units will run correctly as long as they all require same mode, cooling or heating, if one unit decides to heat it will shut down until master unit decides to heat then it will start, for each unit to individually heat and cool there would have to be 3 pipes to each indoor,

Dec 19, 2015 | Fujitsu 9RLS 9000 BTU Split System Air...

1 Answer

Front grill


Check the air filter and if it is dirty, replace..
Turn equipment off and let the ice melt.
After ice melts, place a/c in cooling mode and set the thermostat to 3 degrees below room temp display.

The indoor unit fan should start blowing cold air immediately and then turn off once the room temp drops one degree below the cooling temp setting.
If the indoor unit does cycle off, check the outdoor unit and make sure it turns off at the same time.
If the outdoor unit continues to run and the indoor fan is not running, the indoor unit will ice up.
A defective compressor relay that is stuck in a closed position will cause icing of the indoor unit because it keeps the compressor running when it should turn off with the indoor fan.

Do you have an error code being displayed on the controller?
Is there an led light that is flashing on the indoor unit?

Another possibility causing the indoor unit to ice up is if the freon in the system starts to get low.
Make sure the ice has all melted for this next check.
Pretty easy to check without special tools.
If the air filter is clean and there is no dust/ dirt blocking the fins on the indoor unit, turn a/c back on to cool and check that the indoor unit fan comes on and is blowing air good.
Once everything seems to running good go to the outdoor unit.
There will be two lines with black rubber insulation covering them.
Peel back the insulation three inches on each line and observe the copper lines.
If either line starts to frost up the a/c system is most likely low on refrigerant.


Another cause of indoor unit icing could be that the aluminum fins behind the air filter are clogged with dust or other foreign material.
This would block the air that must be pulled in causing the indoor unit coil to become too cold due to lack of air flow and it will ice up.

Operating the cooling system when the outdoor temperature is below 60 degrees can cause the indoor unit to ice up also.

I'm Robert.
Florida certified a/c contractor. 30 years experience.
Hope this helps.


Mar 18, 2014 | Fujitsu Heating & Cooling

1 Answer

Mini split problems


One check your indoor fan is correctly running ( blowing a good quantity of air. Two look for oily residue around flare connectors indoor and outdoor usually indoor first. This indicates a leak. Thus why the ice . Good luck

Nov 27, 2013 | Heating & Cooling

1 Answer

Hunter thermostat 44110


This sounds like a split system, the condensing unit outside and the evaporator coil and fan inside. You must be referring to the indoor fan, since the compressor and outdoor fan are controlled by the same contacter. The indoor fan relay contacts sounds to be welded shut, and needs to be replaced.

Aug 24, 2013 | Heating & Cooling

1 Answer

Does not cool


CHECK FREON LEVEL...IF GOOD CHECK FOR DISCONNECTED
THERMOSTAT OR COMPRESSOR OR CONTACTOR WIRE AT OUTDOOR UNIT WITH POWER OFF. CHECK FOR A BLOWN CAPACITOR OR UNIT GROUNDED OR BURNT WIRE. BAD BREAKER OR SEE IF OUTDOOR FAN COMES ON AND COMPRESSOR KICKS IN ( MAKES WHIRRING NOISE ) .

INSIDE CHECK BOARD FOR BLOWED FUSE, GROUNDED WIRE, MAKE SURE SYSTEM IS GETTING 24 VOLTS, IF NOT CHECK THERMOSTAT WIRES OR TRANSFORMER ON INDOOR UNIT.. IF YOU SET THERMOSTAT TO OFF AND ON AND THE INDOOR FAN COMES ON..YOUR GETTING 24 VOLTS.NOW YOU NARROWED TO THE BOARD OR LOOSE WIRE, FUSE OR THERMOSTAT. IF YOU TURN YOUR UNIT ON COOL AND AUTO AND THE INDOOR AND OUTDOOR FANS COME ON AND THE COMPRESSOR KICKS IN
BUT IS NOT COOLING...CHECK AND POSSIBLY ADD FREON...
ALSO CHECK AND MAKE SURE INDOOR BREAKER IS ON.

Apr 09, 2010 | Heating & Cooling

1 Answer

Indoor unit freezing up


THE OUTDOOR UNIT HAS A CONTACTOR WITH THE CONTACTS WELDED TOGETHER THE CONTACTOR CONNECTS TO THE COMPRESSOR AS IT TYPICALLY PULLS A SURGE OF 20 -30 AMPS OR MORE..WITH THE INDOOR UNIT IN FAN ONLY THE COMPRESSOR SHOULD NOT BE RUNNING. THE CONTROL WIRES GOING TO THE UNIT HAVE 24 VOLTS TO THE CONTACTOR TO PULL IN THE CONTACTS TO SUPPLY 220 TO COMPRESSOR.

Mar 09, 2010 | Heating & Cooling

1 Answer

Outdoor unit does not start. indoor unit fan does run.


by the sound of it the relay in the outdoor section is bad

May 31, 2009 | Heating & Cooling

3 Answers

Split unit, I get heat but no cold


I have run into this with the LG brand systems. try shutting power off to the outdoor unit to reset all units. If problem persists, it could have to do with a charge level of refrigerant (freon) or possibly a failed control board.

May 16, 2009 | Fujitsu 24R1 Air Conditioner

2 Answers

York Mini-Split Not Cooling? : (


This can only be a gas problem.
the split units goes on on and off if a shortage of gas is involved, the chances that you would here it wont be that big for the fans would make too much noise.
get a repair man for a re gas and all is well.

Good luck.

Wouter.

Oct 21, 2008 | Sanyo 09KS51 Mini Split Air Conditioner

1 Answer

Hi the outdoor unit turns on ( fan runs) the indoor unit does open, no heat or cold air blowing. In just fan mode the unit works fine etc speed setting ok. Its a sharp split type air model # ae-a244j...


My gut says that this is evidence of a bad control board(circuit board). As usual, double check that your batteries are good in the thermostat. I have seen some weird things happen when the batteries are low. This one may be a job for your local contractor.

Jun 23, 2008 | Sharp Heating & Cooling

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