Mercury: | No |
Dimmable: | No |
Please check the following: remove the pump head from the filter casing, remove the impeller cover and check whether the impeller is stuck. Remove the impeller and clean it and the impeller shaft. Afterwards reinstall the parts. Then shortly insert the plug into the socket. The impeller will run again and the magnetic force should be noticeable.
The magnets have been tested extensively and hold securely in their corner in tanks with a glass thickness of up to 12 mm. It is often advisable to use 3 magnets if the glass is more than 10 mm thick so that they are secure enough and won’t fall off in case of a small jolt.
Unfortunately, we must assume that the value displayed on your ammeter is incorrect. There are numerous ammeters which do not include the blank value (cosinus phi) in measurements correctly.
You can only determine the actual output of a filter with a corrected device or by multiplying the voltage times the current (amperes) that is measured:
V * A * cos Phi = W.
However, it is advisable to gauge the flow rate by litres for operation in an aquarium. The external filters have the following flow rates in a cleaned condition and with a hose length of 1.5 m:
CristalProfi e700: 350-400 l/h
CristalProfi e900: 380-450 l/h
CristalProfi e1500: 800-900 l/h
Green water means floating algae, which grow when they have no competition from other plants and, even more, when the excrement of the fish creates excessive nutrient pollution in the water. The filter will not be able to do much about this. Ultimately, there are only two options:
1. Carry out significantly more water changes in order to remove the nutrients caused by fish excrement.
2. A JBL PROCRISTAL UV-C Compact plus kills off the floating algae.
A temporary measure is to switch off the light for 2-3 days in order to stop photosynthesis in the algae.
According to your description, a small bubble appears periodically in the impeller housing of the CristalProfi and is then transported out of the filter.
If air enters the filter system, this may be an indication that a seal is no longer tight or that connecting pieces don’t close tightly, for example. Since there is a constant slight low pressure during operation, this doesn’t necessarily become noticeable. In the event that there is a leak of this kind, you can test by switching off the filter temporarily, in which case a small amount of water would escape at the leaky spot. Caution: This test should only be carried out with careful monitoring.
Another possibility: The filter material may be very heavily soiled, which may result in the formation of fermentation gas which is pressed out of the filter periodically.
The third possibility: Adding carbon dioxide through the suction nozzle, which we discourage.
The filter (CristalProfi) starts up again on its own after a power shut off, but only if there is water in the filter circuit.
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