6105 noise help

Wiskey · 07/06/2017, 08:13 PM

Hello!

Back on 4/20/2017 I installed a new Tunze 6105 in my tank to replace a smaller nano Tunze controllable pump for more flow. It vibrated some but I didn't worry about that because I know they often do until they break in.

Now, more than 2 months later it is still making an audiable hum that I can clearly hear over the TV from 15 feet away and this is running at only 45% (controlled by an Apex). It's fairly quiet at 30% (lowest setting it's supposed to run at) but it can be clearly heard through walls, over the TV, and the air conditioner on 100%.

My other Tunze 6105 that I've had for about 2 years is dead silent at 95% with the 18V chip and has been since the first month of operation. My old 6100's were too.

What can I do? I've tried everything to clean it with no effect but it seems like the impeller might be out of balance.

Thank you,
Whiskey

rvitko · 07/07/2017, 08:36 AM

The propeller assembly is likely out of balance, it is the only moving part, outside of some direct hard surface contact (feet missing from magnet, side of pump up against the tank wall, cable reverberating against a reflector) this is really the only possible cause, if you PM me your address and purchase info I will send a propeller.

Wiskey · 07/07/2017, 09:39 AM

You are awesome Rodger! A PM is on it's way!

I did double check all the rubber feet, the pump is more than an inch away from any rock or glass, and I have the cord suspended by rubber band in the hood because if it hits the tank or hood the vibration noise is worse.

With my other pump of course it doesn't matter where the cord lays, it's still silent.

Thank you!
Whiskey

five.five-six · 02/14/2018, 12:58 AM

I have older, probably 2-3 year old 6105’s. Just cleaned them vingar bath a week ago and they are making noise. One more than the other. Are there bushings I can replace too or is it just the props? It’s not that it’s loud, it’s just not the dead silent that I have grown accustomed to with tunze.

rvitko · 02/14/2018, 09:30 AM

It might be just air in the pumps, if so 2-3 days and it should be gone. Bushing 3005.740 can be replaced, this can be compressed or worn and you will need a pick tool/ o-ring removal tool to hook it from the bottom of the shaft and pull it out. In some cases if the pump was really dirty with fine sand and calcium deposits it can grind the inner hole in the impeller magnet into an ellipse and that will the wobble when clean and make noise.

07/06/2017, 08:13 PM	#1
Wiskey Registered Member Join Date: Aug 2004 Location: Fallbrook, CA Posts: 3,049	6105 noise help Hello! Back on 4/20/2017 I installed a new Tunze 6105 in my tank to replace a smaller nano Tunze controllable pump for more flow. It vibrated some but I didn't worry about that because I know they often do until they break in. Now, more than 2 months later it is still making an audiable hum that I can clearly hear over the TV from 15 feet away and this is running at only 45% (controlled by an Apex). It's fairly quiet at 30% (lowest setting it's supposed to run at) but it can be clearly heard through walls, over the TV, and the air conditioner on 100%. My other Tunze 6105 that I've had for about 2 years is dead silent at 95% with the 18V chip and has been since the first month of operation. My old 6100's were too. What can I do? I've tried everything to clean it with no effect but it seems like the impeller might be out of balance. Thank you, Whiskey __________________ This video shows 15 months of coral growth in my tank in a 30 second timelapse: https://youtu.be/bF6C57aTDEo

07/07/2017, 08:36 AM	#2
rvitko RC Sponsor Join Date: Apr 2000 Location: Austin Texas USA Posts: 35,785	The propeller assembly is likely out of balance, it is the only moving part, outside of some direct hard surface contact (feet missing from magnet, side of pump up against the tank wall, cable reverberating against a reflector) this is really the only possible cause, if you PM me your address and purchase info I will send a propeller. __________________ Roger Vitko Tunze USA "He's for every one of us, stands for every one of us, he'll save every man, woman and child in a mighty Flash!" Current Tank Info: 210 gallon planted tank with Altum Angelfish

07/07/2017, 09:39 AM	#3
Wiskey Registered Member Join Date: Aug 2004 Location: Fallbrook, CA Posts: 3,049	You are awesome Rodger! A PM is on it's way! I did double check all the rubber feet, the pump is more than an inch away from any rock or glass, and I have the cord suspended by rubber band in the hood because if it hits the tank or hood the vibration noise is worse. With my other pump of course it doesn't matter where the cord lays, it's still silent. Thank you! Whiskey __________________ This video shows 15 months of coral growth in my tank in a 30 second timelapse: https://youtu.be/bF6C57aTDEo

02/14/2018, 12:58 AM	#4
five.five-six Registered Member Join Date: Mar 2007 Location: Corona Posts: 7,827 Blog Entries: 6	I have older, probably 2-3 year old 6105’s. Just cleaned them vingar bath a week ago and they are making noise. One more than the other. Are there bushings I can replace too or is it just the props? It’s not that it’s loud, it’s just not the dead silent that I have grown accustomed to with tunze. __________________ Originally posted by yellowslayer13: "I hate that hole" Current Tank Info: SCMAS Member 225 peninsula euroreef RS180 Apex 400W X 3 20k radiums / Spectra mixed SPS

02/14/2018, 09:30 AM	#5
rvitko RC Sponsor Join Date: Apr 2000 Location: Austin Texas USA Posts: 35,785	It might be just air in the pumps, if so 2-3 days and it should be gone. Bushing 3005.740 can be replaced, this can be compressed or worn and you will need a pick tool/ o-ring removal tool to hook it from the bottom of the shaft and pull it out. In some cases if the pump was really dirty with fine sand and calcium deposits it can grind the inner hole in the impeller magnet into an ellipse and that will the wobble when clean and make noise. __________________ Roger Vitko Tunze USA "He's for every one of us, stands for every one of us, he'll save every man, woman and child in a mighty Flash!" Current Tank Info: 210 gallon planted tank with Altum Angelfish