Question about MSY-A17NA Air Conditioner

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I have 200psig on hi-side while my lo-side is negative zero compressor is getting hi-temperature. all systems are clean. inject refrigerant R22 almost 3 kilos. still no cooling or proper condensation on the condenser

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  • Mitsubishi Master
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Hi,
you have a plug in the cap tube which is the expansion device that the Mitsubishi A/C units use...
you MAY be able to pull the dirt out by removing the refrigerant and pulling a vacuum on the unit..this will not always work but it is worth a shot...
if it does not work, then the cap tube will need to be removed and replaced...
Also be aware that Mitsubishi does not recommend the installation of any filter/dryers other then their own...

heatman101

Posted on Mar 31, 2011

Testimonial: "great advice thanks... need to replace cap tube "

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Posted on Jan 02, 2017

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Many times a freezer and/or refrigerator do not work right because of a dirty condenser coil...there are also many other things that can go wrong.


If you are hearing a clicking or buzzing then check out the last two tips.

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Check out these tips that I wrote about that... it is a great place to start trouble shooting your unit...and something that you can do rather then calling a repair person to do a simple thing for you...

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Many times a freezer and/or refrigerator do not work right because of a dirty condenser coil...there are also many other things that can go wrong.


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