Mighty Jet Mini Pump E4

britnicole1724

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So, I have an innovative marine 20 g that came with the mighty jet mini pump and after I did a water change and turned the pump back on, it starts up but then gives me an error of e4. I took the pump apart and cleaned it, plugged it back in, and it does the same thing. Runs fine for about 10 minutes then stops. I’m guessing the pump is a goner but wondering if there’s anything else I can try.
 

Sumbub

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I found this on their website.

MightyJet Error Codes:




  • E1: Over Voltage Protection - Input voltage over 30V
  • E2: Under Voltage Protection - Input voltage under 12V
  • E3: Over Current Protection - Input current over 2.54amps
  • E4: Dry Run Protection - Pump out of water
  • E5: Impeller Seized - Impeller not spinning
  • E6: Controller Board - Controller overheated

Possible that there's air bubbles stuck in it?
 
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britnicole1724

britnicole1724

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I found this on their website.

MightyJet Error Codes:




  • E1: Over Voltage Protection - Input voltage over 30V
  • E2: Under Voltage Protection - Input voltage under 12V
  • E3: Over Current Protection - Input current over 2.54amps
  • E4: Dry Run Protection - Pump out of water
  • E5: Impeller Seized - Impeller not spinning
  • E6: Controller Board - Controller overheated

Possible that there's air bubbles stuck in it?
Not sure. I would have thought submerging it after cleaning it would have fixed it. I’ll try pulling the tubing off and maybe see if that helps.
 

Sumbub

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Swish the pump around. Sometimes there's air in the pump that's stuck.
 

Sumbub

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Did you try unplugging the pump for like 2 minutes or so?
 
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britnicole1724

britnicole1724

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Did you try unplugging the pump for like 2 minutes or so?
Unfortunately lol it pumps for like 30 seconds then stops, then restarts, then stops. I’m wondering if maybe it’s the controller??
 

Sumbub

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Yeah that's what I'm thinking too. Or a sensor is knocked around when you were cleaning? Maybe dismantle and retrace it slowly to see if there's something off?
 

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