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MP40-internal impeller

Supporting Member
Joined
Oct 19, 2023
Messages
495
Hi everyone,

I recently purchased a secondhand MP40, but when I got it home, it was making a loud, harsh noise. I took it apart and discovered that the internal impeller is rusted out. Unfortunately, the seller from Marketplace has not responded to my messages.

Has anyone successfully repaired an MP40 with this issue? I would appreciate any advice or tips on replacing the internal impeller. or if this should just go in the trash


Screenshot 2026-08-15 at 8.44.41 AM.webp
 
Supporting Member
Joined
Dec 19, 2021
Messages
2,177
Hi everyone,

I recently purchased a secondhand MP40, but when I got it home, it was making a loud, harsh noise. I took it apart and discovered that the internal impeller is rusted out. Unfortunately, the seller from Marketplace has not responded to my messages.

Has anyone successfully repaired an MP40 with this issue? I would appreciate any advice or tips on replacing the internal impeller. or if this should just go in the trash


Screenshot 2026-08-15 at 8.44.41 AM.webp
Trash or ship it to ecotech and have them "fix" which means they will make you pay to ship it to them then give you a deal on a replacement. It's trash because that means it got water in it, which best case destroyed the bearings but more likely corroded other stuff too. I've taken these apart and partially refurbished, but once they're like this my experience is they're dead. Happened to me once by just a trickle of water getting on it, because the dry side has zero water protection at the cord.

Best option is trash and buy the jebao equivalent. I have both and will only going forwards by the jebao because it's just as quiet and is as cheap as getting a dryside replacement for a MP.
 
Supporting Member
Joined
Jul 19, 2013
Messages
2,296
My only complaint with the jebao ones is the programming is very limited. 12 modes on a 24hr period.

Also, I have had 4 smart controllers from jebao for a few years and they are incredibly unreliable for maintaining connection with each other.

Still,you can buy 3 of them for the cost of an mp40 and you can buy 2 more for the cost of repairing your Westside .

I got a used mp40 that where the Westside was dropped and I need to try to get it apart and see if I can make it functional again.

It's a shame we don't have the right to repair with access to parts so we don't have to throw shit away everytime something fails. I'm looking at you, Kessil.
 
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