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Old 11/03/2017, 11:16 AM   #1
griffithimage
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Tunze 5017

Hi, my tnze is using pure RO water, and the optical sensor doesn't seem to be reading when the water level goes low. If I pick up my sensor and move it around the pump will come on for a short time then turn off. Suggestions?

(the pump has been used for approximately 6 months)


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Old 11/03/2017, 11:22 AM   #2
rvitko
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It sounds like a sensor issue and not a pump issue, after 6 months there is a fair probability of enough mineral deposits on the sensor to render it blind, a couple hours in vinegar followed by a wipe with a soft cloth should get it back to normal operation.


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Current Tank Info: 210 gallon planted tank with Altum Angelfish
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Old 11/03/2017, 11:32 AM   #3
griffithimage
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thanks will try it


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Old 11/04/2017, 11:37 AM   #4
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Hi, I soaked my sensor in vinegar for 3 hours and gave it a wipe- no improvement. The sensor seems to have a mind of its own- sometimes will work if a remove it from its bracket.


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Old 11/06/2017, 03:27 PM   #5
griffithimage
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pump is now pumping water about the level of the sensor and the too high alarm is going off- sensor issue?


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Old 11/06/2017, 04:09 PM   #6
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A dirty sensor will typically result in no fill, an overfill is usually due to bubbles accumulating on the sensor. Can you give me more background as to the age of the unit and size set up and with or without sump that it is being used on?


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Roger Vitko
Tunze USA

"He's for every one of us, stands for every one of us, he'll save every man, woman and child in a mighty Flash!"

Current Tank Info: 210 gallon planted tank with Altum Angelfish
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Old 11/09/2017, 02:11 PM   #7
griffithimage
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Hi, the unit is 6 years old but was only used for about 6 months (I just restarted my tank after a long layoff). It is being used in the return chamber of my sump but once it started malfunctioning, I tried in the other 2 compartments as well. I have had a combination of not coming on when the water was too low and also it has filled above the water line as well. I scared at this point to leave it unattended.


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Old 11/09/2017, 03:40 PM   #8
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It could well be a bad optic sensor, it is a replaceable part. I don't do the repair service for Canada but Phil at Xenia should be able to do this repair, the part US is $28.80. If the pump is the original one, this can also be a problem area, they usually last 2-3 years and a long time sitting dry after being used could cause the seal to fail. Typically though a bad pump will not pump and after 10 minutes the too low red light comes on, if it is a constant green level light this is an optic sensor issue.


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Roger Vitko
Tunze USA

"He's for every one of us, stands for every one of us, he'll save every man, woman and child in a mighty Flash!"

Current Tank Info: 210 gallon planted tank with Altum Angelfish
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Old 11/09/2017, 04:41 PM   #9
griffithimage
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Thanks, do you have Phil's contact info?


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Old 11/10/2017, 09:54 AM   #10
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www.xeniainc.com


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Roger Vitko
Tunze USA

"He's for every one of us, stands for every one of us, he'll save every man, woman and child in a mighty Flash!"

Current Tank Info: 210 gallon planted tank with Altum Angelfish
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