Geyserwize temperature reading error





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  1. #1
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    Default Geyserwize temperature reading error

    Morning All

    Hope someone can help me here. My Kwikot solar geyser was installed in 2009 with a geyserwize control panel. It worked perfectly all these years with only an element replacement after about 6 years when E4 came on which was cleared with no issues after I replaced the element. I replaced it with a 2kw element.

    About 2 months ago, I noticed erratic temperature readings, always on the low side but jumping between about the mid 50's to the mid 20's on an ongoing basis. I took this as a faulty electronic unit as it was now 11 years old. I replaced the entire electronic unit including the heat probe that slides into the element.

    I suspect that it was not perfect since installing the new control unit with some instances of reading lower as the geyser all of sudden seemed to take longer to warm up to 65 degrees while still drawing 2kw constantly.

    Problem this morning is that it now over reads the temperature for the 1st time and to such an extent that it is flashing the E5 error and reading more than 90 degrees. Water is Luke warm at this stage and I noticed on my data that the element did not switch on during its normal routine today.

    Any ideas from anyone? I don't want to spend more money on an element which was working quite well when the controller told it to yesterday afternoon. Could it be the probe temperature wire between the geyser and the control unit as that is essentially the only part that was not replaced with the control unit?

    Thanks
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  2. #2
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    Default Re: Geyserwize temperature reading error

    Give Geyserwise a call and ask them.
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  3. #3
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    Default Re: Geyserwize temperature reading error

    Did that two months ago and was told to buy a new controller.

    Not much more help from their side unfortunately hence the post here to see if anyone else had a similar problem.
    Alfa 159 - die dors ene, met 6 silinders
    Fiat 500c - SWAMBO se pink'e met 'n swart pruik, en make-up
    VW T5 4Motion - cause there ain't no Italian 4x4 kombies

  4. #4
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    Default Re: Geyserwize temperature reading error

    Eskom failures damaged my GeyserWise. Had to be replaced.

    If it was Eskom loadshedding damaged, it could be an insurance claim.
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  5. #5
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    Default Re: Geyserwize temperature reading error

    Quote Originally Posted by the_terrible_triplett View Post
    Eskom failures damaged my GeyserWise. Had to be replaced.

    If it was Eskom loadshedding damaged, it could be an insurance claim.
    Yes can claim
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  6. #6
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    Default Re: Geyserwize temperature reading error

    It can be a faulty temp probe. Best is to pull the probe rod out of the tank and check the probe. you can gently pull the probe and and feed the wire from the the bottom end of the unit. check for any damage on the wire because where the feed the wire in to the rod is a sharp edge. The other thing is, check that the rod is not bend, if the probe touch the inside the lining where the rod go's in to the geyser, then it can give faulty readings to. It uses a NTC 10K temp probe, they super cheap if you need to find one and test it with a new one.

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  8. #7
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    Default Re: Geyserwize temperature reading error

    At less than R50 a piece one can just get another probe and then compare the resistance of the 2 if the current probe is defective. A test will quickly show if comparing it. It should have a close to linear change in resistance if heated up in water.

  9. #8
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    Default Re: Geyserwize temperature reading error

    Thanks for the comments. Reason I don't think it is a faulty probe is because the new one is now doing the same as the old one replaced less than 2 months ago.

    What is frustrating is that I cannot find anyone able to test the items, at least not from Geyserwize side. to be frank, they were only interested in the sell of a new unit which clearly did not solve the problem.

    Anyone in the East Rand area that is able to test individual components, element, probe etc. before I spend more money without knowing what the issue is?
    Alfa 159 - die dors ene, met 6 silinders
    Fiat 500c - SWAMBO se pink'e met 'n swart pruik, en make-up
    VW T5 4Motion - cause there ain't no Italian 4x4 kombies

  10. #9
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    Default Re: Geyserwize temperature reading error

    All I can say is get a plumber that can do solar as geyser wise has become a standard item and they should be able to test the controller, probe etc.

  11. #10
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    Default Re: Geyserwize temperature reading error

    I have found geyserwise to answer questions quite well. Perhaps try them again and just be more persitant with an answer.

  12. #11
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    Default Re: Geyserwize temperature reading error

    Take the unit into geyserwize, stand in the foyer while they check/ test it.

    They are really very helpful, guys name is Gavin.

    They repaired mine twice at a cost of R150 for Labour and a relay.

    +2712 653 1020.
    183 Edison crescent, 9A, hennops park, centurion.
    Just off the old PTA road.

    Take a picture of the board so you know where the wires go, mark them with tape, l to R, top to bottom.

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  14. #12
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    Default Re: Geyserwize temperature reading error

    Feedback.

    I bypassed the existing communications cable between the temperature probe and the Geyserwise control unit. Temperature now constant at a level that I believe to be correct so hopefully the problem is solved.

    Hope this helps someone in the future.

    Buying a new unit was therefore a bit of a waste but hey, Swambo will again have hot water, so life should be good again.
    Alfa 159 - die dors ene, met 6 silinders
    Fiat 500c - SWAMBO se pink'e met 'n swart pruik, en make-up
    VW T5 4Motion - cause there ain't no Italian 4x4 kombies

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