Why is the alarm going off?

[benf]

I have 2 6100's and 7095 controller. When I got home today i heard a loud tone coming from the transformer area. Is it the controller or a transformer making the alarm sound. I did notice one pump isnt moving. I pulled off the cover of the pump and dont see anything keeping it from moving. I then pulled out the impeller to clean it, and need to know the secret for the O ring so i can put the impeller back in. Do u have a pic of how it should look and was it the pump causing the problem or driver/transformer causing the pump not to spin and sounding the alarm???

I forgot to mention it is appx 2 months old and the transformers are appx 1 month old as they used to be the 6000 transformers.

 

[rvitko]

That is your problem, the oring should not have been seperated. This means the upper bearing is cemented to the magnetic rotor and dragging. The alarm is from the blue driver box. This is a bit early to have this happen so I suspect your calcium or KH are very high or you are dripping kalk or calcium reactor effluent near the pumps. It could also be fine sand entered the pump. Generally 3 months is about when this would start happening in high normal situations. 6-12 months at NSW levels.

 

[rvitko]

The piece that the oring is in should allow the magnet to freely spin inside it.

 

[benf]

by cleaning and puttiing it back in should it be ok or do i have to send it in for the o ring?

 

[rvitko]

You have to have the oring but you could order one if you lost it. Basically just clean and reassemble everything.

 

[benf]

just did and what a big difference in power! So, i guess i should expect to do a maintenance every ~3 months?

I drip kalk into the sump and the calcium i pour into the front area of the tank.


Almost forgot....Thanks for the quick reply!!

 

[rvitko]

Just check your levels, some people seem to think more is better, keep in mind NSW is 380 ppm and about 8d KH and I think these guys do pretty well in the ocean. To me the ideal is 400ppm and 10-12d KH. This gives a little more buffering capcity to a closed system which is important but prevents harm to equipment and reduces maintanence. The same processes are happening in all your pumps it is just ours have a much tighter tolerance so they stop first. If it gets bad enough they have to be sent in and drilled out so please watch the levels and keep up with them.