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Mitsubishi starmex INDOOR UNIT PROBLEM

WHEN TEMPERATURE IS REACHED, THERE IS NO AUTO SWITCH OFF TO STOP THE OUT-DOOR UNIT

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6 Suggested Answers

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 Repairman can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

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bobotfel
  • 236 Answers

SOURCE: blinking indicate at indoor unit

reset your unit by disconnecting the power supply for 10sec. and "on " the unit for testing. if error persist you need to replace your thermistor.

Posted on Jan 26, 2009

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relaga58
  • 158 Answers

SOURCE: does not heat - compressor switches on/off repeatedly

check outdoor fan if running. the outdoor coil will freeze up on heat cycle. or outdoor board if there is one is defective.it could be reversing valve as well

Posted on May 18, 2009

SOURCE: need to know if indoor unit fan shuts off at desired temperature

The MSZA12NA does not shut off when the set room temperature is reached. With your unit set to cooling only, push up the temperature to 90 degrees when it is 75 in the room and see if your fan has shut off. If not, get yourself a window unit with an energy saving feature that will turn off the fan for the 3 months while you are gone.

Posted on May 26, 2009

jumptrout51
  • 3361 Answers

SOURCE: indoor unit runs all the time in auto, outdoor

Your fan relay in the air handler is defective. Replace the fan relay.

Posted on Aug 29, 2009

heatman101
  • 43501 Answers

SOURCE: i have a a/c unit mitsubishi electric ms-12rv r22

Hi,
Here is where you can find all the info you will ever need about Mitsubishi Air Conditioning units...
Check out this tip that I wrote about that...

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

heatman101

Posted on Aug 20, 2010

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How do I get the fault codes up on a Panasonic split air conditioning system CUE24FKR


14.2.2 To Make a Diagnosis1 Timer LED starts to blink and the unit automatically stops the operation.
2 Press the CHECK button on the remote control continuously for 5 seconds.
3 "- -" will be displayed on the remote control display.
Note: Display only for "- -" (No signal transmission, no receiving sound and no Power LED blinking)
4 Press the TIMER ? or ? button on the remote control. The code "H00" (no abnormality) will be displayed
and signal will be transmit to the main unit.
5 Each press of the button (? or ?) will increase error code
number and transmit error code signal to the main unit.
6 When the latest abnormality code on the main unit and
code transmitted from the remote control are matched,
Power LED will light up for 30 seconds and a "beep" sound
(continuously for 4 seconds) will be heard. If no codes are
matched, Power LED will light up for 0.5 seconds and no
sound will be heard.
7 The breakdown diagnosis mode will be canceled unless
pressing the CHECK button continuously for 5 seconds or
operating the unit for 30 seconds.
8 The LED will be off if the unit is turned off or the RESET
button on the main unit is pressed.
Diagnosis
display Abnormality / Protection control Abnormality
Judgement Emergency operation Primary location to verify H00 No abnormality detected - Normal operation H11 Indoor / Outdoor abnormal communica
tion > 1 min after starting
operation Indoor fan operation
only • Internal / external cable connections
• Indoor / Outdoor PCB H14 Indoor intake air temperature sensor
abnormality Continue for 5 sec. - • Intake air temperature sensor (detec
tive or disconnected) H15 Outdoor compressor temperature sensor
abnormality Continue for 5 sec. - • Compressor temperature sensor
(detective or disconnected) H16 Outdoor Current Transformer open cir
cuit - - • Outdoor PCB
• IPM (Power transistor) module H19 Indoor fan motor mechanism locked 7 times occurance
continuously - • Indoor PCB
• Fan motor H23 Indoor heat exchanger temperature sen
sor abnormality Continue for 5 sec. O
(Cooling only) • Heat exchanger temperature sensor
(detective or disconnected) H24 Indoor heat exchanger temperature sen
sor 2 abnormality Continue for 5 sec. - • Heat exchanger temperature sensor
(detective or disconnected) H27 Outdoor intake air temperature sensor
abnormality Continue for 5 sec. O • Outdoor temperature sensor (detec
tive or disconnected) H28 Outdoor heat exchanger temperature
sensor abnormality Continue for 5 sec. O • Outdoor heat exchanger temperature
sensor (detective or disconnected) H30 Outdoor discharge air temperature sen
sor abnormality Continue for 5 sec. - • Outdoor temperature sensor (detec
tive or disconnected) H33 Indoor / Outdoor wrong connection - - • Indoor / Outdoor supply voltage H38 Indoor / Outdoor mismatch (brand code) H50 Ventilation motor abnormality 7 times occurance
continuously - • Indoor PCB
• Ventilation motor H51 Nozzle lock abnormality 2 times occurance
continuously - • Nozzle H52 Limit switch abnormality - - • Indoor PCB H97 Outdoor fan motor mechanism locked 2 times occurance
within 30 minutes - • Indoor PCB
• Fan motor H98 Indoor high pressure protection - - • Air filter dirty
• Air circulation short circuit H99 Indoor heat exchanger anti-freezing pro
tection - - • Insufficient refrigerant
• Air filter dirty F11 Cooling / Heating cycle changeover
abnormality 4 times occurance
within 30 minutes - • 4-way valve
• V-coil F90 PFC control 4 times occurance
within 10 minutes - • Voltage at PFC F91 Refrigerantion cycle abnormality 2 times occurance
within 20 minutes - • No refrigerant
(3-way valve is closed) F93 Compressor rotation failure 4 times occurance
within 20 minutes - • Compressor F95 Cool high pressure protection 4 times occurance
within 20 minutes - • Outdoor refrigerant circuit F96 IPM (power transistor) overheating pro
tection 4 times occurance
within 30 minutes - • Excess refrigerant
• Improper heat radiation
• IPM (Power transistor) F97 Outdoor compressor overheating protec
tion 4 times occurance
within 10 minutes - • Insufficient refrigerant
• Compressor F98 Total running current protection 3 times occurance
within 20 minutes - • Excess refrigerant
• Improper heat radiation F99 Outdoor Direct Current (DC) peak detec
tion 7 times occurance
continuously - • Outdoor PCB
• IPM (Power transistor)
• Compressor

Note:
"O" - Frequency measured and fan speed fixed.
The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until "beep" sound heard following by pressing the "CHECK" button at remote controller.
Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error Codes Table) by using remote controller or Auto Switch at indoor unit. However, the remote controller signal receiving sound is changed from one "beep" to four "beep" sounds.

Oct 13, 2017 | Panasonic Heating & Cooling

1 Answer

IT WORKS BUT AT THE CYCLE END SUPPLY COLD AIR IS IT NORMAL?


Most air cons now have temperature sensors all over the machine. When it reaches temp on heat cycle, the machine usually shuts down both indoor and outdoor units but the indoor unit will keep running for a few minutes with the fan on only to cool the indoor unit down. This prevents the unit reading the wrong temperature. It stops the sensor(s) reading the heat from the indoor unit rather than the heat in the air in the room.

Jan 04, 2016 | Heating & Cooling

1 Answer

Hey, i have a MSZ-GA80VA and the head unit starts for a few minutes and then stops with the left light blinking. i also noticed that the outside unit does not kick in. Daniel


Is there some error code.? Without knowing error code, chances for yor your problem is:
If indoor working properly, there is communication problem between indoor and out door. Check for power in out door after 3 minutes of a/c switched on. If no power problem with your PCB. Replace it.

Jan 18, 2011 | Mitsubishi Heating & Cooling

1 Answer

Lg 12000 btu air conditioner inverter is not working and the led 6 times.thanks


This alarm state is a CH 06 alarm.
Indication for the Indoor unit pipe temperature sensor (thermister) not plugged in or out of calibration.

This alarm will also occur when the unit gas charge is to low and the indoor unit temperature reached a temperature of -5°C for longer that 30 sec. It will switch the machine off.

Mar 21, 2010 | LG Electronic Window Air Conditioner

1 Answer

My aircon unit turns on runs for a minute then indoor and outdoor unit switch off


If this is a LG Airconditioning unit.
It has reached the set parmeter of the safety switch point.
1 The unit could be running on too low refrigerant charge and cuts out on low temperature on the indoor unit coil (-5°C longer that 30sec switch off)
2 The unit might be drawing to much current, to much refrigerant, cutting out on high pressure.

Check the refrigerant charge and check the indoor pipe temperature thermister (calibrated at 5kΩ @ 25°C)

Mar 18, 2010 | LG Heating & Cooling

2 Answers

Air con indoor unit is flashing 6 times out door is off


Please specify the make and model of your unit.
If this is a LG inverter model.
The six flashes of the indoor unit light indicates a CH 06 alarm.
This alarm state indicates that the indoor unit pipe temperature sensor has measured a temperature out of range or the unit is protecting itself from this low temp state. Indoor unit coil temperature to low. Should it have reached a temperature of -5°C for longer that 30sec it will switch the machine off.

It could indicate that the unit refrigerant charge is too low or the sensor has gone out of calibration.

It should measure 5kΩ @ 25°C

Mar 16, 2010 | LG Heating & Cooling

1 Answer

P8 eroor code


P8 error is abnormal pipe temperature indoor. If you are running it on heating P8 error will appear because the disc pressure is too high. It could be overcharged.

May 31, 2009 | Mitsubishi Mr. Slim MXZ30TN Air...

2 Answers

Need to know if indoor unit fan shuts off at desired temperature


Check your operating instructions and see if indoor fan unit has an "auto" feature that allows the fan to run only when the outdoor unit is running. Allowing the indoor fan to run constantly will provide for better air circulation and less stagnation but will use more energy.

May 10, 2009 | Mitsubishi Mr. Slim MXZ30TN Air...

1 Answer

Lg split indoor fan runs non stop


Hello Hamid,
The unit is designed to run the indoor fanmotors continuously when in cooling mode on both indoor units (evaporators). The reason is that this circulates the air and the temperature thermistor or sensor is able to sense return air temperature and in turn start or stop the outdoor unit and compressor as required according to the setpoint temperature. The reason for either unit not reaching setpoint temperature can be a couple of reasons. A) Incorrect design - the unit may be too small for the application. You can calculate this roughly at 650BTU per square meter of room in a relatively warm ambient climate. Or secondly B) The outdoor unit has leaked and is short of refrigerant. You can check this when the outdoor unit is running by feeling the thicker copper tube on the right hand side of the unit. This should be cool to cold. If no temperature difference is felt, it is short of refrigerant. Hope this helps you. Goodbye

Aug 11, 2008 | LG LS-L1210CL Mini Split Air Conditioner

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