The vanes on my heat pump aren't moving, how do I troubleshoot it? (lemmy.ml)

submitted 4 days ago* (last edited 3 days ago) by [email protected] to c/[email protected]

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I have a Mitsubishi Electric "MSZ-GL06NA".

The vanes seem to not move at all, regardless of any position.

The vane motor makes no noise either that I can hear.

Mitsubishi Electric doesn't provide on the phone help for end users.

And the internet is full of SEO spam.

I tried:

Cutting the power for 1 minute.
Setting vane to open / close and doing #1

Is there an external reset button perhaps, what else should I do for troubleshooting?

Edit 1: Solution found! Steps:

Turn breaker off
Remove front panel
Remove Motor
Twist motor to extremes then back to "closed"
Remove motor wires and reseating
Putt all back together
Turn breaker back on. https://lemmy.ml/comment/18994396

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[-] [email protected] 2 points 4 days ago* (last edited 4 days ago)

Is it still blowing air and working otherwise?

There is an on-off button under the cover usually, but that only does exactly what the remote on-off button does.

If your feeling game, and are comfortable with live electricity, you can get to the controller board by removing a few screws and taking off the cover. You could check that the motor cable hasn't come loose, but thats a real long shot. Could have a look for any burnt cables or components.

How to get access: https://m.youtube.com/watch?v=kz_q9uHvVZk

Be very careful, there is mains live electricity in there, if you aren't sure, just replace it, the indoor units are relatively cheap.

[-] [email protected] 3 points 3 days ago

https://lemmy.ml/comment/18994396

Thank you for the warning, I ensured the breaker was flipped.

[-] [email protected] 1 points 3 days ago* (last edited 3 days ago)

Breakers can be faulty, so if you have a multimeter, test to be sure. Also, the live wires are right near the front, so cover them with tape and still treat it as if its live and be careful.

On mine (similar model, likely only cosmetically different), the live terminals are 3x screw terminals, and they are right next to the screw terminal to remove the last cover, so very easy to slip onto them.

Edit: I see you fixed it, all good :)

this post was submitted on 02 Jun 2025

18 points (100.0% liked)

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