Tunze 6105

Gonzo620 · 07/19/2016, 06:28 PM

One of my 6105 powerheads keeps stalling out when in pulse mode. When it randomly comes on its only on for seconds. I place it in constant mode and noticed a pulsating /ramping up and down of the prop like it was struggling to stay consistent and when I lowered the strength it stops. It is a new powerheads I got it thru premium aquatics in early May and started running it in late May. Please help. Any assistance would be great.

rvitko · 07/20/2016, 08:25 AM

If it was running normally until recently, I would start with cleaning. Open the pump and remove the propeller assembly, soak the motor block and propeller of the pump in 50/50 vinegar and water for a few hours and rinse. While it would normally take 4-6 months to need cleaning, if the calcium or KH was higher than normal levels of 380-420ppm and 10-12 dkH, a precipitation occurred or calcium is dosed near the pump, it could happen in as little as a couple months. The build up will then be detected as a higher current draw causing the pump to throttle down or shut down as a safety and prevent permanent motor damage.

rvitko · 07/20/2016, 08:26 AM

Also, is it just running with the built in 7090 controller or is another controller being used?

Gonzo620 · 07/21/2016, 03:25 PM

Ok so I went ahead and soaked both my tunze 6105s yesterday and no difference today after install. The one in question is clearly bouncing around a lot in comparison, and still stalling out. Also I am using the provided controller 7090.500. What can I do now?

rvitko · 07/22/2016, 09:30 AM

Please send it in, I need only the pump with the 7090.500. I will have it repaired and on the way back within a day of getting it.

Tunze USA
305 Victor St
Austin, TX 78753

Gonzo620 · 07/25/2016, 02:13 PM

Pump is in the mail. It should arrive to you on Wednesday.

rvitko · 07/25/2016, 03:40 PM

Thank you!

rvitko · 07/28/2016, 02:30 PM

Luis,

I got the pump, it is working here but I have only been running it a short time (2 hours so far). I am going to send a replacement as I assume you tried swapping the power supply so that is probably not it. Anyway, I don't have an answer yet on what was wrong, so far everything seems normal but such a problem can take a few days to show.

Gonzo620 · 07/29/2016, 09:28 AM

Thanks Roger. I did switch up my power supply in order to eliminate that as a culprit. I know it was mostly noticeable at slower speeds. Thanks for the replacement, my corals greatly appreciate it.

07/19/2016, 06:28 PM	#1
Gonzo620 Registered Member Join Date: Jul 2016 Location: Indiana Posts: 5	Tunze 6105 One of my 6105 powerheads keeps stalling out when in pulse mode. When it randomly comes on its only on for seconds. I place it in constant mode and noticed a pulsating /ramping up and down of the prop like it was struggling to stay consistent and when I lowered the strength it stops. It is a new powerheads I got it thru premium aquatics in early May and started running it in late May. Please help. Any assistance would be great.

07/20/2016, 08:25 AM	#2
rvitko RC Sponsor Join Date: Apr 2000 Location: Austin Texas USA Posts: 35,785	If it was running normally until recently, I would start with cleaning. Open the pump and remove the propeller assembly, soak the motor block and propeller of the pump in 50/50 vinegar and water for a few hours and rinse. While it would normally take 4-6 months to need cleaning, if the calcium or KH was higher than normal levels of 380-420ppm and 10-12 dkH, a precipitation occurred or calcium is dosed near the pump, it could happen in as little as a couple months. The build up will then be detected as a higher current draw causing the pump to throttle down or shut down as a safety and prevent permanent motor damage. __________________ 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

07/20/2016, 08:26 AM	#3
rvitko RC Sponsor Join Date: Apr 2000 Location: Austin Texas USA Posts: 35,785	Also, is it just running with the built in 7090 controller or is another controller being used? __________________ 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

07/22/2016, 09:30 AM	#5
rvitko RC Sponsor Join Date: Apr 2000 Location: Austin Texas USA Posts: 35,785	Please send it in, I need only the pump with the 7090.500. I will have it repaired and on the way back within a day of getting it. Tunze USA 305 Victor St Austin, TX 78753 __________________ 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

07/25/2016, 03:40 PM	#7
rvitko RC Sponsor Join Date: Apr 2000 Location: Austin Texas USA Posts: 35,785	Thank you! __________________ 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

07/21/2016, 03:25 PM	#4
Gonzo620 Registered Member Join Date: Jul 2016 Location: Indiana Posts: 5	Ok so I went ahead and soaked both my tunze 6105s yesterday and no difference today after install. The one in question is clearly bouncing around a lot in comparison, and still stalling out. Also I am using the provided controller 7090.500. What can I do now?

07/25/2016, 02:13 PM	#6
Gonzo620 Registered Member Join Date: Jul 2016 Location: Indiana Posts: 5	Pump is in the mail. It should arrive to you on Wednesday.

07/28/2016, 02:30 PM	#8
rvitko RC Sponsor Join Date: Apr 2000 Location: Austin Texas USA Posts: 35,785	Luis, I got the pump, it is working here but I have only been running it a short time (2 hours so far). I am going to send a replacement as I assume you tried swapping the power supply so that is probably not it. Anyway, I don't have an answer yet on what was wrong, so far everything seems normal but such a problem can take a few days to show. __________________ 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

07/29/2016, 09:28 AM	#9
Gonzo620 Registered Member Join Date: Jul 2016 Location: Indiana Posts: 5	Thanks Roger. I did switch up my power supply in order to eliminate that as a culprit. I know it was mostly noticeable at slower speeds. Thanks for the replacement, my corals greatly appreciate it.