Question about Mitsubishi MSH09TW Air Conditioner

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The squirl-cage fan (MSZ-A15NA) clogs up with mold once a year, which drastically deminishes airflow. I have had the dealer technician come out and disassemble enough of the unit to gain access to the fan blades. Using pipe cleaners and other methods, and over 2 hours for each cleaning, the majority of the build-up gets removed. BTW, due to the location of the wall unit next to an imovable object, dissassembly and removall of the squirl cage is not an option. And yes, I have found and stopped the source of the mold. I just tried slowly spraying about a pint of white viniger into the running fan's inlet to try to clean things without dissasembly. While I'm letting the last spraying of viniger soak into the stopped fan, I thought I'd see if there is anyone who has a better sollution. Any and all suggestions will be greatly appreciated. PS - the viniger treatment didn't get it.

Posted by Geezer Geek on

  • Geezer Geek Jul 10, 2011

    First of all, I found my own solution. Secondly, the solution provided was not applicable to the problem.



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Posted on Sep 05, 2012


raj somaiya

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Instead of spraying vinegar, i would say spray wd-40 spray.That will keep the fan and its internal assembly clean and not let the fan movement get tight and rusted.It will not allow the parts to get tight and rusted.-------- But once you spray wd-40, you have to let it remain there for 30 minutes to 1 hour, then turn the unit on .The wd-40 spray takes time to show its effect.--------- The wd-40 spray is easily available at local walmart and homedepot stores or at appliance parts repairs store.---------- This will help.Thanks.Helpmech.

Posted on Jul 09, 2011


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