Question about Mitsubishi MSH09TW Air Conditioner

1 Answer

No cooling after power out, indicator lights pattern not in manual

After a power outage while 2 of 3 inside units were in "cool" mode, each "cool" unit's left indicator light blinks and the right is off, the unit fan runs, but no cooling is provided. This pattern of indicator lights is not in the Operating Instructions. Resolution: The outside unit was not running. I flipped the outside unit breaker off, waited 30 seconds and turned it on; both "cool" inside units continued as before, not cooling. Started the third inside unit in "cool" and it operated correctly, cooling; turned it off. Flipped inside unit breaker off, waited ca. 1 min. and turned breaker on; both "cool" inside unit lights then displayed correctly and both operated correctly, cooling.

Posted by on

  • johnmop Nov 27, 2007

    Just had a power outage for 1 hour and the Mr. Slim units are not working in the heat mode...does anyone have an idea how to reset the sytems.  I have the condenser outside and three wall mounted split units in three separate areas...controlled by remotes.  Thanks in advance.





  • Anonymous Mar 12, 2014

    Inside unit turns on then after a minute the lights start to flash and the outside unit is not running

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,420 Answers

The Mitsubishi units have to be reset by turning off the indoor units by switching the remote or thermostat to off. Then turn off the breaker to the outside unit(s). After 30 seconds,turn on the breaker and then you can turn on the remote for cool. If no lights come on on the inside units, most likely you have blown a fuse soldered on the main PC board. At this point, call your technician. A goos tech will be able to wire in an in-line fuse holder so if it should happen again, you can easily replace the fuse. If you do see a light or two come on at the indoor unit but the outdoor unit does not start after 3 or 4 minutes, sounds like you will need to call a technician. Most likely you have a blown fuse on the main PC board of the outside unit. It is not an easy one to replace. Good Luck!

Posted on Sep 04, 2007

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Is there a way to stop unit from going into demo mode when power outage?


I wouldn't want to eat any food you left in it for months anyway .

Feb 18, 2016 | Samsung 24.5 cu. ft. Side by Side...

1 Answer

Samsung rs263tdbp and demo/cool off mode will not turn off


from the manuals Page 1. Activating/Deactivating Cooling Off Mode When the refrigerator is in Cooling Off Mode (aka Demo Mode) the display will read "OF OF, O FF, or OFF OFF." Cooling Off Mode prevents the unit from cooling. It is used by retailers to display units without wasting energy.
Note: Models without digital displays will display scrolling lines when the unit is in Cooling Off Mode.
rs261_demo_animation_250.gifrf221_rf220_rl220_rl225_display_demo_250_1.gif
Tip: If your display panel has buttons that have to be pushed in to perform any functions, replace the word "Touch" with "Push" or "Press" in the following steps.
  1. Touch and hold the top two buttons on the left side of the display panel.
  2. Important: You must touch the 2 buttons at the exact same time. Not doing so will result in an unsuccessful attempt to activate/deactivate Cooling Off Mode.
    [img src="http://www.samsung.com/us/system/support/content/2011/04/25/h5408/Demo_Mode_250_Pix_1.jpg" align="bottom" border="0" height="127" width="250">
    Notes:
    • As long as the display panel is located on the exterior of the left door of your refrigerator you will use the top two buttons on the left side of the display panel to activate/deactivate Cooling Off Mode.
    • If your display panel is located inside of the unit along the door frame you will need to locate the words "Cooling Off (Hold 3 sec)" printed on the panel. The Power Freeze and Freezer buttons are the two buttons used for Cooling Off mode on these models.
    • Wi-Fi Touchscreen displays on RF4289* and RSG309* are exceptions to this article. Cooling Off Mode is activated/deactivated through the settings menu.

Apr 01, 2014 | Samsung RS263TDBP Side by Side...

1 Answer

Sub-zero 430 stopped cooling.


The most likely failure (after a power outage) is your start capacitor or start relay. I would check them closely.

Jan 02, 2012 | Refrigerators

1 Answer

Power indicator /red/ and warning led/red/ are lighting after ea 15 sec. a lamp never start and fans goes in OFF mode. I checked power supply lines S5V,S-5V,S16V on the Main Board . I checked unit lamp...


If power indicator light red and warning indicator red flashing than according to user manual :-
The projector has been cooled down enough and the temperature returns to normal. When turning ON the projector the WARNING indicator stops flashing. CHECK AND CLEAN THE AIR FILTER.
Experience:- 1. if the temperature is very low than temperature sensor maybe misbehave.
2. If anyone fan not working
so please you check fans.
(If lamp or lamp ballast unit faulty than after a time period the lamp indicator light ON not a warning indicator. I experience many times if any fan in projector are broken or jamed the temperature light if present otherwise warning light ON or flashing)

Jan 20, 2011 | Sanyo PLV-Z4 Multimedia Projectors

1 Answer

What would cause a 2 day old fridge to shift into the "cooling OFF" mode? We found the reset command purely by luck tonight. Is there any way to switch this mode permanently off?


A power outage. If no power outage you may of had a power surge and with this model it will kick itself to the off position to help protect the unit from anymore damage.

Jan 19, 2011 | Samsung RM255LASH Side by Side...

2 Answers

What causes a refridgerator to stop cooling and will not cool in ether elecrtric or gas mode of operation? model RM2652, checked and replaced both fuses in control modual. This failed to cool after several...


There has to be a heat source to circulate the ammonia. . If the If the problem started after a power outage I would suspect a problem in problem in one of the control boards or controls. Verify power to the main board and look for voltage to the heating element in electric mode and power to the ignition circuit for gas.
Eric

Aug 11, 2010 | Dometic RM2652 Refrigerator

1 Answer

Air conditioner compressor runs for about 1-2 min, then cuts off


well when u have outages the voltage drops obviously, the one that suffers are the capacitors the capacitor for the compressor might need to change, change it with the same capacity as the old one example if labels say 55 microfarady ( mf ) ( 55 mf ) get one of the same I am not saying it is a 55 mf capacitor vary depending on motor and brand. So check the label

Jul 23, 2009 | Danby Portable Air Conditioner

1 Answer

Cooling problem


If your compressor is running and there is no indication of frosting on the evaporator (Cooling coil inside) you may have a problem with the refrigerant charge. Since these are sealed systems you may have to get a technician to tap into the system to check the pressure. If this is an older unit check the name place inside the left door and let the tech know the type of refrigerant the system has in it. such as R-12 prior to 1992 and R134A after 1992.

May 09, 2008 | True T-49 Side by Side Refrigerator...

Not finding what you are looking for?
Mitsubishi MSH09TW Air Conditioner Logo

1,379 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Heating & Cooling Experts

vince

Level 3 Expert

1211 Answers

D. E. Hev

Level 3 Expert

1181 Answers

Stuart Slabber

Level 1 Expert

19 Answers

Are you a Mitsubishi Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...