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Mitsubishi Model Number Revisions

scottboyd
scottboyd Member Posts: 3
in A-C, Heat Pumps & Refrigeration
MIT-M-MSZY-GE-NA-89-OBB548F-2018-03-English_pm.pdf

I have a

Nameplate.jpg

Installed in 2011. The Indoor Heat Exchanger has sprung a leak. Looking at the parts pdf it shows three versions of the MSZ-GE15NA:

MSZ-GE15NA

MSZ-GE15NA followed by an 8 in a square box.

MSZ-GE15NA followed by a 9 in a square box.

Each of these has a different part number for the Indoor Heat Exchanger:

E12D71620

E1209E620

U01A04620

So I'm guessing the serial number might help determine which version I have. Is there a place to cross the serial number to the version?

Even without knowing, how different could the Heat Exchanger be from version to version? Seems physical size and thermodynamic attributes would be the same, maybe just some change in manufacturing process between the versions.

Anyone whose replaced a bunch of these verify any of the three part numbers would work?

Thank you in advance.

Scott

Comments

  • pecmsg
    pecmsg Member Posts: 5,836

    When your contractor orders the parts, he will need Model and serial #'s of both the indoor and outdoor units.

    GGross
  • scottboyd
    scottboyd Member Posts: 3

    pecmsg, yes I understand the serial number might be significant, I'm able to replace the exchanger myself as I watched a technician do the last one and I have the gear to vacuum and weigh in new refrigerant. I'm trying to understand what the revisions to this series were and how interchangeable the heat exchangers are.

  • pecmsg
    pecmsg Member Posts: 5,836
    edited March 5

    Not Might Be it is significant. What minor / major changes are made are recorded with that #.

    I will add at 14 years is it worth repairing? 7 1/2 - 10 is average.

  • scottboyd
    scottboyd Member Posts: 3

    pecmsg my experience with this series has been pretty good. The two faults I've had are the fan assembly needs to be cleaned more than I'd like and it's no fun getting it out. I always keep the prefilters clean but eventually the fan assembly needs love. The second fault is the failure of the indoor heat exchanger. Seems it could be fixed with different material choices. The steel holder that all the copper tubes goes through gets corroded pretty quick and this usually leads to a leak were the copper goes through the steel. Wouldn't cost a lot to use stainless for this tin part or maybe even a high tech plastic.

  • GGross
    GGross Member Posts: 1,456

    In my experience with ordering mini split parts from a different brand you either need access to the distributor parts portal, or to call tech support for part numbers, especially with models that aren't current production. All manufacturers had to change their product to an A2L refrigerant this year so availability on out of warranty coils will become difficult I would imagine.

  • pecmsg
    pecmsg Member Posts: 5,836
    https://forum.heatinghelp.com/discussion/comment/1846894#Comment_1846894

    cleaning more then every few years is a sign of oversized. Humidity control drops drastically as it begins to ramp down.

  • ratio
    ratio Member Posts: 3,940

    I've had VERY good experiences with Mitsubishi tech support. Might be worth a call to them even if you're not a contractor. Worst thing they can do is be rude & hang up on you.

    GGross

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