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Old 05/14/2020, 12:40 AM   #1
thebiggster
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Tunze 6040 Issue

Hi

Have a 6040 and just recently the pump has been playing up. Pump seems to work OK out of water but as soon as you place it in water, controller LEDs pulse randomly and pump runs randomly. SOmetimes for a minute or two sometimes just a couple of seconds.

Any ideas?


Thanks


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Old 05/14/2020, 07:22 AM   #2
rvitko
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How old is it? Is the metal shaft the drive unit spins on still firmly fixed in the motor? Have you tried removing the drive unit and cleaning the pump and drive unit?


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Old 05/14/2020, 03:31 PM   #3
thebiggster
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Hi Roger

I think it is about 5 years old (bought when they were first released). I have cleaned the entire pump and the shaft is still firmly in place. The impeller runs free and does not bind up on either the shaft or the housing.

I tried playing around with the wave auto adjust function but it just starts and stops in 1-2 sec intervals and when you switch it over to wave ok it runs in short pulses of approx 50%.


Does the unit have an no water auto stop?


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Old 05/15/2020, 07:07 AM   #4
rvitko
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Yes, if running dry or jammed or with a damaged drive unit, it will sputter for a while and eventually stop, this can only be reset by cycling the power. I think the best course would be to have Tunze Australia diagnose it, they can be repaired for far less than replacement cost.


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Current Tank Info: 210 gallon planted tank with Altum Angelfish
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Old 05/17/2020, 11:27 PM   #5
thebiggster
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Will do.......thanks


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