Question about Mitsubishi MS12TN Air Conditioner

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Mitsubishi KA6 OVA

Self test reveals UP compressor overcurrent interrupt.Have had new compressor fitted but still records same error.

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Please confirm make model number, don't recognize what you have.

Posted on Nov 14, 2007

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Ac botton is always off


I will try to help. If you are testing at the compressor clutch connector, there is a power interrupt from both the Low pressure and High pressure interrupt switches. There can also be an interrupt from a freeze sensor on the oblong a/c tank, but usually this is after it is frosted up.

Now you may have a simple fuse depending on how the car is wired, but usually it affects the blower motor too.

In the case of the pressure switches, it means there is either low pressure or high pressure in the system and the compressor is not being allowed to operate.

You would need to attach a gauge to the test/fill port of the car and this is usually on the black oblong tank or an a/c line close to it. If the pressure is low, you may need to remove the low pressure switch connector and bypass it with a looped connector shoved into the harness.

This is a temprary test to allow refilling the system. Once a can of Freon is added, try reconnecting the low pressure connector and see if it operates on its own.

Now some Digital a/c controls have the ability to self-diagnose system problems. You would need to know the Code to cue it and have the list of what those codes mean.

My solution will at least give you a start for a successful repair.

Oct 02, 2012 | 2006 Mercedes-Benz S 430

1 Answer

I no longer hear my ride control air compressor do it's self test when I start the car. It also doesn't seem to level the car when trunk is loaded. I changed the ECR relay under the rar seat, but...


If you change the position of the height sensor on the front of rear, the aircompressor should kick on.

I have a 1996 Lincoln Mark VIII that has a fuse in the trunk labeled RSS (beside the on off switch) and if that blows the entire air ride system stops working. But I can't remember whether the self test was gone through or not.

Unfortunately, since the car is not doing a self test when you start the car or getting an error message it sounds more like the computer for your DeVille.

Jun 21, 2011 | 1994 Cadillac DeVille

1 Answer

Ricoh 1515 is locked up with error message SC:820 code 612. How do I fix the problem


820 Self-diagnostic error: CPU

Symptom:
• An unexpected exception or
interruption occurs during the self-
diagnostic test.
• An error is detected in the MBU.

Possible Cause:
• Defective controller
• Defective firmware
• Loose MBU jumper


Code 820
MBU error (The jumper is loose.)
Set the jumper (on the MBU) correctly.
The following codes are displayed:
• SC: 820
• code: 612
• detail: 40000000

Feb 03, 2011 | Ricoh Aficio 1515MF All-In-One Laser...

1 Answer

The compressor motor is not starting at all. multimeter tests revealed initial connections and switch okay. Is there a motor reset? I could not find it.


1-800-556-6696
This is the Bostitch phone number.
According to the sales info, there is a "manual overcurrent reset".
This is probably visible somewhere.
Additionally, there are two capacitors that help start the motor, one of these might be bad.
This should be enough information for you to get started.
Gary

Jan 30, 2011 | Stanley FactoryReconditioned Bostitch...

1 Answer

What is bios?


A BIOS (Basic Input/Output System) is an electronic set of instructions that a computer uses to successfully start operating. The BIOS is located on a chip inside of the computer and is designed in a way that protects it from disk failure.
A main function of the BIOS is to give instructions for the power-on self test (POST). This self test ensures that the computer has all of the necessary parts and functionality needed to successfully start itself, such as use of memory, a keyboard and other parts. If errors are detected during the test, the BIOS instructs the computer to give a code that reveals the problem. Error codes are typically a series of beeps heard shortly after startup.

Oct 02, 2010 | Intel Motherboard

2 Answers

Error 1 message on older life fitness t3 treadmill


Error 1 - Start up error. This is caused because the belt was commanded to move and the opto (speed sensor on the motor) has not seen any movement or the belts movement was interrupted prior to it reaching its commanded speed. To fix Verify opto operation in Diagnostics, Motor Test
Mode, Section 2. Verify DC voltage at connector P6 pins 1 and 2. Verify that LED 4 on the Motor Controller flashes as the motor moves. Let me know if you need any more help. Fitness Fix-It

Feb 17, 2010 | Life Fitness T3 Treadmill with Advanced...

1 Answer

Air is cold center vents and hot side vents 01 ls lincoln


  • The dual temperature control is inoperative/does not operate correctly
  • Circuitry.
  • DATC module configuration.
  • DATC module.
  • Coolant control valve.
  • Low coolant level.
  • Air trapped in coolant circuit.
  • Incorrect heater hose connections.
  • Air temperature sensors.


--------------------
Visual Inspection Chart Mechanical Electrical
  • Loose, missing or damaged A/C compressor drive belt
  • Loose or disconnected A/C clutch
  • Broken or leaking refrigerant lines
  • Obstructed in-vehicle temperature sensor
  • Disconnected in-vehicle temperature aspirator hose
  • A/C registers are not working (open/close)
  • Front floor ducts not in place
  • Incorrectly installed in-vehicle temperature sensor
  • Incorrectly installed ambient air temperature sensor
  • Fuse(s)
  • Blower motor inoperative
  • A/C compressor inoperative
  • Circuit short/open.
  • Disconnected, loose fitting, or incorrectly installed electrical connectors and pins
  • Cooling fan inoperative
  • Relays not functional or not installed

  1. As pinpoint tests and measurements are being performed, be sure to inspect for any disconnected, loose fitting, or incorrectly installed component, module and in-line electrical connectors and pins.
  1. If the inspection reveals obvious concerns that can be readily identified, repair as necessary.
  1. If the concern remains after the inspection, connect the scan tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the scan tool menu. If the vehicle selection cannot be entered:
    • check that the program card is correctly installed.
    • check the connections to the vehicle.
    • check the ignition switch position.
    • check that the battery voltage is greater than 9V.
--------------------------------------------
you can do this test

The DATC module self-test through the front panel display:
  • can be initiated at any time. Normal operation of the system stops when the self-test is activated.
  • is entered by pressing the OFF and FLOOR buttons simultaneously and then pressing the AUTO button within two seconds. The display will show counts of 1 to 25 in the center of the display window. Record all DTCs displayed.
  • concludes by reporting all on-demand DTCs. Follow the diagnostics procedure given under ACTION in the DTC index for each DTC given.
  • reports individual on-demand DTCs as four-digit DTCs (less the alpha character).
  • will calibrate all the mode doors and check all analog inputs. The DATC module will only report on-demand (hard) faults that occurred while the DATC module was conducting its self-test.
  • will light all control panel display segments if no faults are detected.
  • will report individual on-demand DTCs without the °C symbol lit.
To exit the self-test, press any button. This will clear all on-demand codes from the DATC module memory. If no button is pushed DTCs will continue to be displayed.
Upon exit from the self-test the DATC module returns to operational status. The DATC module executes a hard (cold boot) reset which places the DATC system in the OFF mode.
If a condition exists but no DTCs appear during the self-test, GO to Symptom Chart Condition: The DATC System Is Inoperative, Intermittent or Incorrect Operation.
Always exit the self-test before powering the system down (system turned OFF).

Apr 15, 2009 | 2001 Lincoln LS

1 Answer

BOOT FAIL: PCF8584: I2C ERROR


According to the message you received on the screen there's might be something wrong with your RAM module(s). Take a look inside and see if everything's alright with RAM. Replace it to another slot if there are empty.
Download and use a program like MemTest to see if RAM is properly working.
If you have another computer which is compatible with your RAM, try it inserting then in to PC and see if everyhting's alright.
If nothing helps, then purchase a new RAM module

Jan 30, 2009 | Dell PowerEdge 6400 Server

1 Answer

Frigidaire upright freezer


Not good news. sounds like the compressor overcurrent protection device is operating . This suggests that a. compressor is siezed or b . If the compressor has a capacitor to aid starting , this could be u/s. If the latter then this could be replaced at a fraction of the cost of new comp. orst case the compressor is u/s.

Apr 02, 2008 | Freezers

4 Answers

Panasonic DMR E 55 cycling on/off


See this thread

http://www.fixya.com/support/t122832-powerdown_after_few_seconds

Sep 07, 2007 | Panasonic DMR-E55 DVD Recorder

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