Tunze 6055 stalling and power source blinking...

[nightOwl]

I noticed an issue tonight with my Tunze 6055. It seems to be stalling when it tries to turn. It moves slightly but does not turn and then it repeats. Also I noticed that the green light on the power source seems to be blinking when this is happening. I have attached a video of what I am seeing the second Tunze to the right is not blinking. Sometimes if I unplug and plug it back in then it might work for a while but then go back to trying to turn.

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[rvitko]

This usually indicates the pump is drawing over 30W which is the limit of the power supply, this triggers the blinking as an overload indicator. The prime culprit will be a jammed pump, calcium deposits in the pump and on the drive unit. I would open the pump, remove the drive unit and soak the motor and drive unit in vinegar/water mixed 50/50 until clean. A missing or inverted disk can also cause this issue.

 

[nightOwl]

This usually indicates the pump is drawing over 30W which is the limit of the power supply, this triggers the blinking as an overload indicator. The prime culprit will be a jammed pump, calcium deposits in the pump and on the drive unit. I would open the pump, remove the drive unit and soak the motor and drive unit in vinegar/water mixed 50/50 until clean. A missing or inverted disk can also cause this issue.

rvitko - Thanks I will give it a nice soak night and report back in a few days. Is an inverted disk something that can happen over time?

 

[rvitko]

The only way the disk gets inverted is if it is removed and reinstalled upside down, assuming the pump is less than 3 years old, if you look in the pump at the base of the shaft, you should see a black disk about the diameter of a disposable ball point pen and it sits in a blue silicon cup, if the black disk is missing or this assembly is upside down so the drive unit rides on the silicon cup, it will stall or use too much power.

 

[nightOwl]

The only way the disk gets inverted is if it is removed and reinstalled upside down, assuming the pump is less than 3 years old, if you look in the pump at the base of the shaft, you should see a black disk about the diameter of a disposable ball point pen and it sits in a blue silicon cup, if the black disk is missing or this assembly is upside down so the drive unit rides on the silicon cup, it will stall or use too much power.

rvitko - Thanks. I am a little behind on replying but I checked and everything was in place. I ordered a new power supply and it arrived today I think it was drop shipped from you guys. I noticed the power source is a little different than the one that was shipped with my pumps previously. Its skinny and the voltage selector is a plug in type verses a selector switch. It came with a 20v pin installed. Is this the voltage that I should be using or is the 24v not recommended for the 6055 any longer.

 

[rvitko]

No you can use any of them and 24V is needed for the maximum power. The power supplies changed in 2010/2011 to meet new EU laws against phantom loads (power draw when a device is off).

 

[nightOwl]

No you can use any of them and 24V is needed for the maximum power. The power supplies changed in 2010/2011 to meet new EU laws against phantom loads (power draw when a device is off).

rvitko - Thanks! I replaced the power source and now I have a new issue. I think it may be an Apex issue but figured I would ask here to make sure. Is there any reason when I plug in 2 Channel Apex to Tunze Stream Cable the power immediately cuts off to the power head? If I unplug it the power head works fine.

 

[rvitko]

I would suspect a short or break in the cable. I would try another cable. I would also try making all connections before plugging the pump in and be sure the cable is firmly seated and all the way plugged in.

 

[nightOwl]

I would suspect a short or break in the cable. I would try another cable. I would also try making all connections before plugging the pump in and be sure the cable is firmly seated and all the way plugged in.

rvitko - Thanks again for all your help!