Georgia 3,820 Posted June 1, 2014 I've had no problems with my AC70 for a year, and now it's starting to drive me nuts. The motor began to make these awfully annoying and loud grinding sounds, like the impeller was grinding against the chamber. I tried cleaning it this morning and no dice. Can someone tell me the proper way of cleaning the impeller chamber, by the way? I feel like I'm doing it wrong. Also, another weird thing. It always starts in the morning. Never at any other time. It woke me up this morning. Here's a video of the noise: \Sometimes it does it continuously, other times it has "bursts." I don't know what to do! Is there a chance of a fire happening with all the friction going on in there? Is a warranty still applicable? Like I mentioned, the filter has been running for almost a year. 0 Quote Share this post Link to post Share on other sites
Flipper 13,057 Posted June 1, 2014 Nooo! That's not right! Unplug it!!! Pop off the motor box. I use a q tip to wipe gently, so as not to bend the propeller, each individual paddle and the prop. Then with new q tip wipe inside engine hole. Rinse both with hot water. If unit isn't put together right it may sound cranky Good luck! 0 Quote Share this post Link to post Share on other sites
yafashelli 9,540 Posted June 1, 2014 I have a feeling that sand is getting stuck in there. I have the same problem with my 110s, and it's such a pain! Take the motor off, pull out the impeller, and hit them with very strong jets of water--I use my shower massager thingy. Once I do that, I apply Vaseline to the impeller, and put it back into the motor, and then put the filter back together. It should be mostly quiet. If it isn't, Cat taught me to unplug and replug the filter several times, in very quick succession. It will often get whatever is left in there out, and make it less noisy, at the very least. You have the same sand as me, right? Does your AC have prefilters? That helps a lot, too. I use the prefilters meant for the fluval edge, and they'll fit your 70's, too. 0 Quote Share this post Link to post Share on other sites
Flipper 13,057 Posted June 1, 2014 Yes! Tammy is awesome! 0 Quote Share this post Link to post Share on other sites
Georgia 3,820 Posted June 1, 2014 Thank you, you two! Tammy, I have Sunset Gold. I believe it's a wee bit heavier than yours. I had a feeling it was sand, too. I didn't know you can wet the motor thing? I was hesitant to rinse it out because it's the part that uses electricity and I might break it by wetting it? Tammy, do you mean a prefilter something like of this? https://encrypted-tbn2.gstatic.com/shopping?q=tbn:ANd9GcROz4Qi34AMhE_w-cclVrMM12fXspWFjNfIfRjaTCZuU9CMUGCgs0XQ6jFIts6If2BhOawr_e8u&usqp=CAE I feel like it would kinda defeat the purpose of the filter, since all the debris will stick onto the prefilter instead of actually going into the filter. Whatever noise it was making this morning has stopped completely now. Not sure if it went away, or..? 0 Quote Share this post Link to post Share on other sites
Flipper 13,057 Posted June 1, 2014 Yes! That's what she means and you will need to rinse it every couple days too. By using it you will not have to rinse your main filter as much because the PRE filter will be doing more work, but if you don't rinse you can really tax the motor. 0 Quote Share this post Link to post Share on other sites
Mikey 6,780 Posted June 1, 2014 Yes, those pre filters I use them and they are awesome! Just make sure you rinse them out every couple of days to keep water flow at it's highest. 0 Quote Share this post Link to post Share on other sites
Chai 7,337 Posted June 1, 2014 One of mine did that and I couldn't make it shut up no matter what. I ended up replacing it after getting a new filter shaft from Hagen didn't help. It was really REALLY bad, though. Now with noises I do what I told Tammy to do and it eventually gets it out. Put the plug into the outlet just at the tip until you hear it start quietly. It tends to shove out whatever is in there. I learned my girls were spitting sand near the filter intake since I had it close to the bottom and only let it go half way up now. If its happening to you too, rinsing out the chamber might help. Although the biofilm contributes to keeping the aqua clears silent, there might also be all sorts of harder material causing the filter motor to rattle. The impeller chamber in the motor IS waterproof and the impeller is held in place with a magnet. Slide out the impeller and give the empty chamber a rinse in the bathroom sink. Don't clean it out too much so that the biofilm comes off completely, but the sand in it should come out without much effort. 0 Quote Share this post Link to post Share on other sites
Georgia 3,820 Posted June 1, 2014 Ah, thank you, Cat! I honestly did not know that the motor was water-tolerant. When I did filter maintenance I'd always try so hard to make sure I don't get it wet. I'll have to try rinsing it tonight. The noise has stopped completely so I'm guessing all the sand came out. Dumb question, but: what exactly does the motor do in the filtration process of the filter? Does the water pass through the chamber? I'm not sure, really. Not sure if I want to try prefilters yet, but I'm looking into it. I'm such a lazy person that I see myself not cleaning as much as I should. Lol! 0 Quote Share this post Link to post Share on other sites
Chai 7,337 Posted June 1, 2014 The motor draws the water into the intake tube, under the platform the intake tube rests on, shoves it towards the right in the direction of the sponges and pushes it from the bottom up and out of the filter body. 0 Quote Share this post Link to post Share on other sites