20 Most Recent Mitsubishi MS12TN Air Conditioner - Page 9 Questions & Answers

go google and type in--Mitsubishi air conditioner fault code p 8-- and there are pages including a mitsubishi site that is a pdf version down load describing the fault

Mitsubishi... | Answered on Dec 10, 2015

did you change the batteries ?

Mitsubishi... | Answered on Nov 24, 2015

If you're getting water inside, you need to put more tilt into the unit. The back end should be tilted down, no less than 1/2" per foot. If the AC is 1 1/2 feet long, from front to back, the back should be AT LEAST 3/4" lower than the front. MORE IS BETTER.

Mitsubishi... | Answered on Aug 11, 2015

12,000 but/ton. If the 101 in your model is their tonnage (101รท12=8.4. its a 8 1/2 ton (5 ton and a 3 1/2 ton combined). That's probably it or very close. I could not look it up cause I don't know the maker of the unit.

Mitsubishi... | Answered on Jun 25, 2015

The blinking is an indicator that it needs service. Call a technician! Ask if they are experienced in mini split systems. You can check the air filters. Check the outdoor coil to see if its clean or covered up with dirt. And at the breaker or disconnect, turn off power, wait 5 mins, and turn it back on. Then give it 3-5 mins to see if it will reset itself. If this don't work, call a tech/service provider! These units are troublesome to troubleshoot.

Mitsubishi... | Answered on Jun 06, 2015

Check to see if you have fan on automatic or continuous run ,it should have a setting so you can get air flow at all times or just when unit runs

Mitsubishi... | Answered on May 18, 2015

You have to try resetting the system. First turn the breaker off for the condenser and wait about 20 seconds. After you turn it back on the system should reset.

Air Conditioning West Palm Beach

Mitsubishi... | Answered on May 13, 2015

Not sure which unit you have, here a website that might help.
Mitsubishi Electric Sales Canada Inc Air Conditioning Heating

Mitsubishi... | Answered on Apr 09, 2015

Supposedly if you have the old filter you can wash it with baking soda. I can't locate the parts. You might have to contact a factory authorized dealer to purchase the filter if it requires replacement.

Mitsubishi... | Answered on Feb 21, 2015

your main board more so the pipe sensor connected to it, is defective. if the pipe senor can be changed it will work but in most cases the whole main-board will have to be changed as well.

Mitsubishi... | Answered on Feb 08, 2015


Mitsubishi... | Answered on Jan 15, 2015

The remote batteries could be defective or installed incorrectly. Try removing the batteries, pressing all buttons to eliminate the possibility of a stuck one, reinstalling batteries and testing operation. If no operation, the remote may have failed or there could be failure at the wall unit.

Mitsubishi... | Answered on Jan 08, 2015

that is only half the code you need the remote an lots more steps to troubleshoot that conditioner
here is some simple steps . but id get help on this.

after that comes this step an its exacting

AstiquerMold Control Air con Specialist

in that page at the top is the command for your unit to ask it what code its tossing.

Mitsubishi... | Answered on Jan 05, 2015

Cooler than normal discharge air temperatures are kind of nature of the beast for an inverter compressor system. An inverter compressor has essentially an infinitely variable output due the varying speed of the compressor. When is is running slower the transfer of heat is less than when it is running full bore. At least on a mild day. On a cold day, even running at full speed, the leaving air temperature can feel a bit cooler due to the lack or heat available in the outside air to transfer in to the indoor coil. The Mitsubishi's are capable of running down to 5 degrees above zero without the addition of a low ambient control kit and the nearer it is to that temperature, the lower the leaving air temp will be.

There's only about three more 300 page VOLUMNs of information available to describe the function of these little guys, but maybe just a taste of the info will satisfy your concern. Of course what's written above is a very Cliff Notes version with a lot of holes in the description.....but you get the drift.

Mitsubishi... | Answered on Jan 04, 2015

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