Question about Mitsubishi Heating & Cooling
Cold air in heating mode
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: My air conditioning unit is
90 percent of the time the freon charge is low and lack of freon lessens the amount of compressed heat that can be created and also the amount of heat that can be extracted. hence less cooling and less heating. however the exact same thing can occur when a change over valve gets stuck partially between heat and cool . it then mixes the hot and cold together and you get poor cooling and poor heating. you check it with a gage. fed law requires that you have an epa certification to apply a gage. low pressures in heat and cool on both high and low pressure gages are a sign of low charge. if low pressure and high pressure are close to the same on both gages then a good chance valve is stuck half way between. you can also sometimes check by feel . at the change over valve two lines should be virtually to hot to touch and two should be cold to the touch. one is heating flow and other is cooling flow. if the valve is stuck then temps will be within a few degrees of the same on all. low charge and the hot lines won't be hot hardly .and the cold line s barely cool. look for white frost forming in the heat mode outside at the condensor tubing shortly after you turn on the heat. thats a sign of low charge. good luck.
Posted on Nov 04, 2008
hi.welcome to the mitsubishi worl of airconditioning.thay are great units to have.ok let me explane this for you.
the sun is for heat mode
the snow flake is for cooling mode
rain droplet is for dehumifiy the air if its a humid day.i hope this helps you.you have to choose the modes on the remote for the unit.then the unit will do the mode you choose on the day.
Posted on Jun 09, 2009
your compressor is not working properly it could be several things, capacitors, wires rubbed bare, etc, most likely a bad dual run capacitor in the outdoor unit, turn it off and call a service tech. before you kill the compressor, which is $1000, a run capacitor is about $100-$150 depending on how crooked your ac man is, wholesale they are about
$15-$20, turn the breaker off and call some body
Posted on Aug 11, 2009
SOURCE: seeking user manual as air
Please check temp setting -4 degree than your room temp and mode in " cool" .Due to overheat in compressor also air conditioner switched off after 10 minutes. If condenser dust block clean it. If less rpm in out door fan, replace fan capacitor.
For your manual request, get it from:
Posted on Dec 30, 2010
SOURCE: Need an Operating Manual in
I am really sorry I tried everything I could to find a manual in an English version, however I could not find one. I tried different approach of searching it however as of this time they don't have a manual available for English yet.
I am so sorry I tried the best I could.
Posted on Aug 04, 2011
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