7092, 6055 and 6105

[rswarden43]

I have a couple of questions.

1. My 6105 makes a clicking sound when cycling on and a low power hum when on. I went to my local dealer and he provided a replacement impeller with no success, same issues. I have cleaned it and the impeller as described in an earlier post, still the same result. Additionally, as in the previuos post the clicking noise seems to go away when the flow is turned down to mininmum or close to it.

2. My 6055 does not make the clicking sound, but makes the power hum when cycled on.

So between the two pumps I get an alternating power hum (they are set to be alternating and not simultaneous).

I also want to mention that these noises can be heard from across the room (approximately 10-12 feet away).

3. Now what is also an issue, that I have stumbled upon, is that my 7092 controller does not alternate between pumps when I go from wave mode to pulse mode >2 second interval. Instead both pumps run continuously, and continue to do so even when the system goes into night mode with the light sensor. According to the instruction manual when in night mode only the master pump should continue to run. Correct?

I only discovered this as I just upszied to from a 90 gallon system to a 150 gallon where I wanted a longer pulse duration.

All units are less than a year old.

So, I am wondering if the 7092 might not be the problem as it appears to not be funtioning correctly.

I intend to work with my LFS where they were purchased, but I am looking for guidance. Should I pack it all up and return for replacement units?

Any insight would be helpful.

 

[rvitko]

For the pumps-

Some clicking is normal for the 6105, it is a larger pump and basically as the coil energizes the magnet pulls back and slaps the bottom of the pump, how hard it hits is determined by the power setting. In some cases an additional 6065.792 disk stacked on the existing 3005.740 disk will minimize this as it shims up the space and reduces the movement.

For the humming, this will likely be an issue of mounting, be absolutely sure their is no hard surface contact, the magnets should have the rubber feet on them and the pumps should not touch a side wall or any object besides the silence clamp they are in. Some hum can be expected and noise issues are not the easiest to resolve, some peoples hearing is better than others and some rooms (tile and all hard surfaces) are particularly able to transmit sound. The only real test that could be performed would be with a decibel meter, a 6105 should be below 54 db if it is a current (post Nov 2011 production) and a 6055 around 50db, since the average house is about 50db background noise usually the issue is pitch of the noise and that will have more to do with placement and mounting. If the cables are bunched against an overflow or wall, this is another possible source of noise transmission.

For the 7092-

In pulse mode, all pumps are on and pulsing, their is no alternation between pumps on a 7092. If, you open the controller and set it to inverse, then one pump should be opposite the other, so pump A is at the bottom speed knob setting and pump B is at the top speed knob setting and they alternate but they will always be running. These knobs have to be set differently to see any difference, one at maximum and one at minimum for example, if set to the default synchronous (controller has to be opened to change this) they just mirror each other so both are at the top knob and then so many seconds later, the bottom knob setting. These speed knobs are only applicable to pulse mode, wave mode is off and on. Night mode in pulse mode stops the pulsing, the pumps stay at the setting on the bottom speed knob for the duration the photocell is in darkness. In wavemode the photocell completely shuts the pumps down, the logic being that no one will want to listen to the slosh of a wave all night and wavemode should not be the only source of flow. One last point for the 6105, it is critical that if a controller is used that the potentiometer on the pump is at full power, if that was turned down it will be very erratic in response to the controller. A controller issue is almost unheard of, the only ones I have seen are stuck food timer and auto tune buttons or broken cable connections where one pump does not run at all.

 

[rswarden43]

I really appreciate you thorough explanation.

I may have the dealer order me another disk for the 6105 to see if that helps. I did check the rubber feet on both mountings, but I will recheck them. Can the harden over time?

Regarding the 7092- this explains a lot as I expected them to cycle on and off not just ramp up or down between the set points.

Thanks!

 

[rvitko]

Joe placed an order this morning and I added this part to it. He should have it on Tuesday.

Only the 7095 and 7096 have this Interval program where you set a time between pumps.

The rubber feet may harden over time, but this time would certainly be much longer than a year, more than a few years even. They are a 3M component and very durable. They can compress if the magnets are mounted on thinner glass, in that case a thin sheet of rubber or floss pad between will help.