Question about Mitsubishi Heating & Cooling

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Mode is on HEAT with the temp set to 17 (C) The room heats up to 23(C) but the unit keeps on heating rather than going into standby. Whats wrong?? - Colin

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Hi,
There are so many different models and different issues and codes for each model...
Here is a tip about Mitsubishi Air Conditioners and how to get the manuals for all of the mitsubishi line. The manual include both troubleshooting and installation.

Mitsubishi Air Conditioner Troubleshooting and Repair
http://www.fixya.com/support/r5643983-mitsubishi_air_conditioner

heatman101

Posted on Aug 22, 2010

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Posted on Jan 02, 2017

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1 Answer

I have a centrex air con.. and i dont know what to do the air is not cool.. and there no button in the remote that i could use and fix it..


In your remote, there is mode button, the symbols for each option will display. The symbols are:
"
Now symbols:
1. fan leaves - Fan only
2. Rain drop- Dry mode
3. Snow flake-Cool mode
4. Sun- Heat
5. A or AU- Auto mode.To get proper cold air set temp 23 degree and mode"cool". To get heat set temp minimum 3 degree more than room temp and mode in "Heat"

Feb 02, 2011 | Heating & Cooling

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DT92E room stat appears to be very inacurate with its room tempreture, our normal room temp is about 22c we have to set the stat at 25c to get heat and the stat cuts out after a temp rise of 1c


All thermostat is calibrated @ difference of 2 degree.to cut in and cut off.
In heat mode, if you keep 25 and your room temp 23. it will start at the end of 24 or beginning of 25 degree.Cut off also @27 degree beginning. Please check Tips & how to do's in Fixya

Jan 11, 2011 | Honeywell Heating & Cooling

1 Answer

Unit comes on and shut off correctly but dosen't heat and cool home equally. Blows cold air in winter and doesn't cool home properly in summer.


Toget proper heat, keep your temp setting at 30+ degree and also mode in "heat"position. If still no heat, check your heating sensor for closed circuit by anOHMs metre.It it's with RV, check power to RV.If it's with heatingelement check power to element. If power is there but still no heat meanselement defective. Replace new heating element. Thanks. To get proper cool, keep the tips as follows:
1. Check air filter is cleaned. 2. Check indoor coil is cleaned. 3. Checkindoor blower motor is working. 4. Keep in cool mode. 5. Set temp minimum 3degrees less than room temp.6.Check compressor is working with correctpressure.
Thanks. Helpful?

Jan 09, 2011 | Intertherm Heating & Cooling

1 Answer

DONT KNOW EXACTLY WHAT IS WRONG. OUR POWER BILL LAST YEAR WAS 211.00 AND KNOW WITH THISE BILL IS 678.00. IT IS H EATING AN 18X23 ROOM. THE SETTING FOR TEMP. IS ON 72 DEGREES. THIS THING HAS RUN OUR BILL UP...


Simple way to pay less bill with big comfort.
Tips for it: To get proper cold air set temp 23 degree and mode"cool". To get heat set temp 30 degree and mode in "Heat" Clean indoor and out door periodically ( Once in 4 months) Clean Air filter every fortnightly. Avoid frequent opening of the door where it's air conditioned. Avoid keep closing the doors even a/c is switch off. It helps to cool the room next times in short minutes. Use proper breaker, wiring for your air conditioner plug points. Make sure your elect meter is working properly.Check your Elect meter with 1000watts bulb for one hour. It should consume one unit only. Hope, it's helpful.

Jan 08, 2011 | Heating & Cooling

1 Answer

The unit model # msh12tn how do set the the remote for the best setting to heat a large room


keep heat mode and temp setting minimum+5 degree than your room temp. Thanks.

Jan 07, 2011 | Mitsubishi Mr. Slim MXZ30TN Air...

1 Answer

Outdoor heatpump unit,twx736a100a2, coils freeze over solid,replaced outdoor thermastat, checked freon and replaced a relay switch at a cost of $500/for 2 service call-outs.It worked fine whole month of a...


Coils freezing due to dust blocked coils and or air filter or short of gas. Service your unit completely.Please do not change any spare/s without knowing exact problem. Please follow the steps given below.

Toget proper heat, keep your temp setting at 30+ degree and also mode in "heat"position. If still no heat, check your heating sensor for closed circuit by anOHMs metre.It it's with RV, check power to RV.If it's with heatingelement check power to element. If power is there but still no heat meanselement defective. Replace new heating element. Thanks. To get proper cool, keep the tips as follows:
1. Check air filter is cleaned. 2. Check indoor coil is cleaned. 3. Checkindoor blower motor is working. 4. Keep in cool mode. 5. Set temp minimum 3degrees less than room temp.6.Check compressor is working with correctpressure.
Thanks. Helpful?

Jan 04, 2011 | Heating & Cooling

1 Answer

I have got 4 independent sanyo air conditioners in my home.none of them is wiorking in the "heat" mode or "cool" mode.only the fan is working. what problem can cause this situation?


Please check power in your room. Its no logic that all the units are having same problem at a time. May be common problem that is power.
To get proper cool, keep cool mode,and also temp setting 23 degree.

To getproper heat, keep your temp setting at 30+ degree and also mode in "heat"position. I

Dec 15, 2010 | Sanyo STW0923H2 Air Conditioner Heat Pump

1 Answer

My rv air condition also has heat, the heat in it is not getting very warm. So days it will burn u out of it and some days it just blows cool air! Any suggestions. It is a dometic


Check the following if you're unit is not giving heat.
1. Keep temp setting +8 degree from your room temp 2. Keep mode in "Heat". And check the click sound in RV when you turn to heat mode. If one failed out of three your unit will not supply heat.

Dec 15, 2010 | Heating & Cooling

1 Answer

Carrier heat pump: aux heat does not seem to work


The unit is probably to small for theare you are trying to heat.

When the Aux HT light came on that meant the heat pump could not keep up with the demand for heat. (Probably due to extreme cold, or undersized unit.)

If yu have heat, then at least one heat strip is operating. If you have multiple heatstrips, one or more could be malfuncioning.

Or it could simpy be to cold/to small fr your area and not able to keep up.

How many square foot are you trying to heat?
What is the outside temp?
What is the inside temp?
What size unit (BTU output) do you have?

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Problem with mitsubishi air roof units


to tricked the thermostat only a way i know,to put on it an ice cube for a while.propably wrong choice to installed roof unit you must installed to the floor better for the ac and to you

Dec 13, 2008 | Mitsubishi Mr. Slim MXZ30TN Air...

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