Might Jet With E5 Error

Jaag

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My Mighty Jet has no issues while running but once I place it on feeding mode, it will not turn back on and give an E5 error code. I looked into this and E5 means seized propeller. If I unplug the pump and plug it back in, it will then turn back on as normal. I just recently cleaned the impeller. I have seen that people put some type of petroleum jelly on the magnetic part of the impeller. What are your thoughts on that or other solutions?
 
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Jaag

Jaag

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What did you end up doing? Just buying a new one? That’s what I ended up doing.
 

Saluki2003

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It’s under a year so warranty covers it. But since I need it now…I ordered it on Amazon and will return once I get my replacement from IM.
 
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Jaag

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I bought mine used. I am not sure how old it is but I did buy one on Amazon also. I called IM and left a message but I have not heard back from them yet.
 
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Jaag

Jaag

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IM got back to me and send me these instructions. It hasn’t seemed to help. My problem isn’t so much noise, my pump is noisy, but the impeller not starting up after stopping.
 

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Blopple

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You are the best! Man, I was having a similar issue on a newly setup pump (same day). Would run fine for a few minutes then give me an E5 error. Followed the directions above and it seems to have fixed it for now. In my case I could clearly tell that the bushing/ceramic inside the body/internal to the impeller was not straight. I didn't even remove it, just pressed it flat, and poof, pump is running again. For now. Fingers crossed.
 
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Jaag

Jaag

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You are the best! Man, I was having a similar issue on a newly setup pump (same day). Would run fine for a few minutes then give me an E5 error. Followed the directions above and it seems to have fixed it for now. In my case I could clearly tell that the bushing/ceramic inside the body/internal to the impeller was not straight. I didn't even remove it, just pressed it flat, and poof, pump is running again. For now. Fingers crossed.
I hope it’s long lasting for you.
 

Salty_Northerner

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So amazing Google always brings me here!

I just received my IM Mighty Jet 538 midsize return pump for my Waterbox that'll be here the end of May early June..

I figured I'd better fill the kitchen sink up and make sure it works. Plugged it in and nothing! All I could hear was a vruuu, vruuu,...... And the controller was counting up and then show E5 and then repeat 5-6 times before finally shutting down and showing a solid E5.

Found this thread and figured I'd share what got this thing going for me. First off I read the pictures and followed the instructions that @Jaag posted, thanks man!

Even though the pictures show a different impeller I followed them. With the housing off I plugged the pump in. This time I could see the impeller try to start and had to give it a help to spin :/

So took it apart and this time I grabbed my tube of Molykote 111 and dipped the bottom shaft that seats into the rear of the pump into the tube to get a good amount on the bottom shaft that sits in the bushing. Then used a toothpick to apply some grease just under the impeller to touch the shaft. I slid the impeller up and down a few times and rotated it in my hand and could feel the grease worked into the tiny spot and could feel it was very smooth.

Assembled the pump and plugged it in and dang I had water hitting the ceiling lol.. like literally!

So everyone needs to have a tube of this Molykote 111 for moments like this. I originally ordered the grease after finding out that ecotech use it as a break in lube for their Vortech pumps.

Sorry a little long winded but hopefully this helps others that encounter this issue.

20230420_113727.jpg
 

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