Question about Mitsubishi MSH09TW Air Conditioner

Open Question

Toshiba inverter split unit RAS-10N3KCV inside unit lights flashing

Inside unit turns on lights start to flash and outside unit doesn't turn on

Posted by Frank B on

Ad

5 Related Answers

Therinnaiguy

Chandler Ede

  • 1420 Answers

SOURCE: no cooling after power out, indicator lights pattern not in manual

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

Jerico1234

  • 36 Answers

SOURCE: pipes frozen on outside of unit, inside unit does not work

sounds like the compressor relay is stuck in the 'on' position .... hence the compressor will not turn off .... to fix it you will need to turn off the main power (unplug) and take off the front panel then look at the circuit board normally the largest relay on the board is the compressor relay ... sometimes you can snap off the cover or break it off at times and clean the contacts ,give it a little spray with some contact cleaner or lub like wd 40 and that should be it .... alternative to this is just changing the circuit board all together ....

Posted on May 19, 2009

Ad

Anonymous

  • 11 Answers

SOURCE: split system outside unit won't come on for cooling, only heating

Check your filters, dog hair and lack of maintenance will definitely burden the cooling mode of the Mr Slim units.

Posted on Aug 24, 2009

Anonymous

  • 81 Answers

SOURCE: inside unit turns on, outside doesn't

Could be a wiring problem or a lack of refrigerant. All you can do is professionally have the unit checked and serviced.
Hope this helps I take the time to answer your question so please rate me

Posted on Jun 28, 2010

AJMAL KHAN

  • 388 Answers

SOURCE: its not working and flashing P6. Its a Mr Slim

dear sir/madam i think.... mr Slim A control R407c & R410a systems.
P6 = indoor coil frost protection in cooling or indoor coil overheat protection in heating.

Cooling
One of the 2 indoor coil sensors reads minus 15 deg C for 3 mins.
Heating
One of the indoor coil sensors reads over 70 deg C.

If you are sure the refrigerant charge is correct & system operation is correct then it could be a coil temperature sensor reading wrong temperature.
If you have one of those little monitor things which plug into the outdoor circuit board you can monitor the indoor coil temperature.
On later type remote controllers you can get all operating data like temp sensor data but you will need a service manual to do this.
Or you can measure the ohms resistance of the temp sensors & compare with the chart in the service manual. if you can do it by yourself do if not then contatct ot mitsubishi maintenance personnnel for furhter action, thank you hope answer the question please vote!

Posted on Sep 23, 2010

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My akira split unit, indoor & outdoor light keep flashing, when it is turn on but outdoor unit does not running. please don't tell me to seek the spcecialise.


The relay for the outside unit is not working. The thermostat activates bot inside and outside relays, so the outside relay is bad.

Apr 26, 2016 | Heating & Cooling

1 Answer

My breaker trips when the outside unit tries to turn on. The inside furnace runs. I cut the inside unit off and the breaker doesn't trip. I manually turn on the outside unit by depressing the cont


Hello, there is a short to ground somewhere, check all the wiring from the inside un it to the outside unit and make sure nothing is touching metal.

Jun 10, 2012 | Goodman Heating & Cooling

1 Answer

Cooling doesn't stay on


The outside and inside coils may need cleaning. Clogged coils cause excess pressures and heat of the freon that can cause safety switches to shut er down. Eveen a faulty power relay in the outside unit.Otherwise you may need a serviceman to locate the cause.

Jan 21, 2012 | LG LS-L1210CL Mini Split Air Conditioner

2 Answers

My A/C freezing its coils, while the fans keep running. The AC unit (outside) keep running and never stop caused the coils freezing. It doesn't matter when I turn off or set it to Cool position, the...


Sounds like the contactor in the condensing unit is stuck. That is why it will not turn off when the thermostat is satisfied. If the inside air handler is not blowing and the outside condensing unit is running, then this will cause the inside coils to freeze up rather quickly.
The contactor is located in the outside condensing uni in the electrical compartment.
If it is sticking it will need to be replaced.

Sep 07, 2011 | Heating & Cooling

2 Answers

I have a 2000 Ford Escort. My left turn signal inside is blinking real fast. Outside it isn't working. Also, the brake light and Haz.Flasher isn't working on the outside either on the left side....


In the fuse panel with the fuses inside the car there are two big round units plugged into the fuse panel, one is your turn signal flasher one is your hazard flasher. I would start with those and move to other things if that doesn't fix it. Hope this Helps.

May 26, 2011 | Ford Escort Cars & Trucks

1 Answer

Outside unit will not start...while inside unit blows warm air


probably a.c. was left with out a gas,and compressor will not start and there is no cooling.

Jul 04, 2009 | Heating & Cooling

1 Answer

Samsung aircon turns in 5 sec. lights green/yellow flashing


check capacitor on outside unit,or gas is leaking.
try to reset(small black button in inside unit under the cover)

Feb 11, 2009 | Samsung Heating & Cooling

1 Answer

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


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!

Aug 31, 2007 | Mitsubishi MSH09TW Air Conditioner

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

Related Topics:

74 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Heating & Cooling Experts

Marvin
Marvin

Level 3 Expert

85239 Answers

NOEL
NOEL

Level 3 Expert

8549 Answers

Vernon Taylor

Level 3 Expert

7441 Answers

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

Answer questions

Manuals & User Guides

Loading...