HagenKB

Fluval-G: Priming

I am not able to start the pump using the priming button.

I am not able to start the pump using the priming button.
I am not able to start the pump using the priming button.

Air entering into the intake circuit:

Check that the telescopic intake stem and the intake cross rim assembly are correctly assembled and the O-rings are correctly positioned.

Disassemble the parts and reassemble them again by applying a twisting movement.
Check that the hoses are well inserted into the rim assembly and the ring nuts are properly tightened.
Check that the hoses are well positioned into the AQUASTOP and the ring nuts are properly tightened.
Check that no dirt is present on the red O-rings of the AQUASTOP.

Check that the AQUASTOP valve is fully open (valve lever fully down).
Check that there are no slacks or loops in the intake and output hoses.
Check that the aquarium water level is not more than 15 cm below your aquarium rim.
Check that the hose connected to the intake strainer is attached to the correct adaptor of the AQUASTOP
(check that the water flow follows the direction of the arrows marked on the front of the AQUASTOP).
Check that the white flaps on the underside of the priming chamber are not blocked by debris or foreign objects:

a. Remove the mechanical pre-filter cartridge
b. Remove the chemical cartridge
c. Pushing the priming button repeatedly, check that the two white flaps inside the priming chamber move freely.

If this is not the case, remove the cause of the blockage by means of a pencil, probing gently into the openings. (need picture)

Check that the valves of the primer chamber are still seated properly so they swing freely.

In case they are not, proceed as follows:
Remove the mechanical pre-filter cartridge
Remove the chemical cartridge
By pressing the appropriate ribbed areas, remove the red valve support.
Remove the valves gasket.
Position the valves correctly.
Re-assemble all parts. (need picture)

NOTES :
- In order to work efficiently the priming button must be pushed all of the way down in fast sequence; otherwise the prime may not occur. If the installation necessitates slack or dips in the hoses, it may be necessary to use the priming button repeatedly.
- Warning: the priming system works even if the filter canister gasket or the chemical cartridge is missing. Therefore, after starting the pump, verify that there are no leakages.

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