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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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Re: mitsubishi KA6 OVA

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

Posted on Nov 14, 2007

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I have a 2008 samsung mini split mho50fxca2a with a I trip pfc overcurrent error what is this and where to start? also shows e4 67 which is compressor rotation error?

Your 2 errors are most likely related to the compressor itself and the power supply feeding it. If the system is an inverter system, there is usually an "inverter board" or power control board that sends high voltage (usually in DC rectified voltage) to the compressor. If the board is not functioning correctly or if there is an issue with the compressor, it may cause a reverse rotation error along with the power error. Additionally, the compressor itself may have failed and may have shorted or welded windings. This condition can be especially dangerous due to the potential of electricity arcing and the possibility of refrigerant loss. If you are not a technician trained to work on the equipment, I would NOT advise attempting a repair. Some of the power supplies in those units can discharge over 300v DC and there are quite a few components that can cause serious injury. I would call a technician to diagnose the issue.

Jul 18, 2016 | Samsung MH050FXCA2A 24000 BTU 2 Ton Dual...

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The display of AC Shows F2 instead of temperature in panel what is a reason

Seems to be three main reasons for a self diagnostic error code F2. Assuming the AC system is working and blowing cold air after startup.
1. The Control System Diagnostic has detected an overcurrent condition in the fan relay system.
Carefully remove the outer fan shroud and try to manually spin the blower fan. If you feel any resistance on any part of its revolution, check clearances with the casing. This will cause the fan drive motor to demand more current to start and move up to speed. If no obstruction noted, but resistance still noted, then try manually lubricating the main fan shaft bearings with some WD40 or similar lubricating product..

Manually rotate to test again. A smoothly running fan reduces initial total current required for startup. (This is a temporary fix but might show if a bad fan bearing is the culprit.)

Replace everything and reconnect to power. Test.

2. The Control System Module is itself faulty. Call an 'Authorized' Certified Product Repair Depot' and ask for a technician to answer a question about the product. (Might not be Company Policy though to speak to customers directly.) If you are successful, he might have a quick fix for the module or tell you how to 'in service' test the unit using the buttons on the unit or remote if any supplied.

Digital electronics require a lower voltage to operate and so there is some kind of voltage reduction circuit (transformer circuit) to power it. A misbehaving or glitchy power supply might be the problem. This is fairly hard to test - for consumers - so you need the expert to point the way for you.

3 The 'TOTAL' energy draw of the compressor and the fan has exceeded programmed parameters.
Most AC units like yours use a fairly large capacitor to 'jump start' the compressor motor. Some capacitors also multitask and help control fan speed regulation. A failing capacitor will result in less than normal results and could trigger the 'overload' condition.

Not every consumer will have the time, expertise, or confidence to test this. CHARGED CAPACITORS ARE DANGEROUS and can seriously ruin you day if safety precautions are not met.
If the capacitor is faulty, replace with the exact same unit if possible - or the cheaper, generic one if available from your local appliance service store.
Bringing the unit to an Authorized Repair Depot is sometimes not an option, so hiring a mobile AC repairman (expensive, so calculate the present used value of the unit) to check the unit is the final, best option. Sometimes a new replacement is the way to go.
Good luck.

Sep 22, 2015 | Air Conditioners

2 Answers

Error code e4 unit airconditioner

Not sure about E4 , but 4 blinks or flashes usually means the compressor isn't starting properly. It could be a faulty start capacitor or wiring or faulty indoor PCB (Board)

Oct 18, 2013 | Mitsubishi Mr. Slim MXZ30TN Air...

1 Answer

My compressor on my mitsubishi msh 18nv has ceased. Is there anything I can try to fix it (eg a gentle tap with a hammer) before I spend a fortune to replace this compressor?

Sorry to inform you, you need to get a HVAc tecnision out too replace the compressor: Did a technision test the amps on the a/c unit? Why did the compressor ceaced?

Sep 20, 2011 | Mitsubishi MSH09TW Air Conditioner

1 Answer

Have a bristol compressor fitted to a prototype air con unit designed for military application, been through a TUV vibration test and failed due to pipework failing, pipework repaired, pressure tested,...

Please check your compressor pumping.
How to check?
Keep pressure gauge in discharge pipe and also keep open suction pipe, test run. It builds the pressure up to 300 psi or slightly more than that. If it's less than 275psi, it's defective.

Dec 15, 2010 | Air Conditioners

1 Answer

What is surge absorber? what is the function of

Hello,It is protection from overcurrent to power input (lighting strikes or unreliable electric service to house).Mandatory on computers,hd tv's any sensitive electronics.

Oct 27, 2010 | Mitsubishi MXZ30TN Air Conditioner

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...

1 Answer

Replacement compressor for Mitsubishi Mr. Slim Air Conditioner

pls no overhauling repair no spare part avaliable for hermetic comp[ressor the right is to change it

Apr 26, 2009 | Mitsubishi Mr. Slim MXZ30TN Air...

1 Answer

Error code E39 for Mitsubishi Heavy Industry Ceiling cassett type

E39 Fault is thermister, Mitsubishi way of saying im not going to start because there is something wrong. Generlly it is compressor fault or short of gas. Im guessing if you turned the power out. Waited twenty seconds, turn it back on. Now if you go to the outdoor part. Wait exactly 3 mins. If you hear the compressor try to start and fail then it would more then likely be your compressor if you dont hear anything and the unit faults out it will either be a board or short of gas.

Either way If the unit is under five years old get a warrenty agent out to look at it.

Sorry I couldnt tell you for sure but MHI are very vague when it comes to fault codes

Mar 03, 2009 | Mitsubishi Air Conditioners

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