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Acaia Lunar won’t calibrate - HELP!

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  • Acaia Lunar won’t calibrate - HELP!

    Bought a used Lunar, turned it on but getting a 303 error message. So I tried to recalibrate, but it’s not working. Not calibrating at all. I have a 100g Acaia weight. But no good.

    Also, when I tare it, the reading keeps going up.

    have I bought a complete dud?

  • #2
    not sure if you visited Acaias website, but it tells you what the issue may be and what to try What to do when I see ERR303?


    Error 303 (and sometimes error 802) is an indication your scale’s load beam has experienced a weight beyond the scale’s capacity of 500 grams (Pyxis or Cinco), 2000 g (Lunar, Pearl 2021, Original Pearl), or 3000 g (Pearl Model S). A physical shock such as a portafilter or tamper dropping on the scale, or damage from dropping the scale may cause this overload. It can take weighing an object over the scale's capacity just once to damage the load sensor.

    You can return the scale to functioning condition by performing a linear calibration, with the caveat that the upper reaches of the weighing range (1500 g - 2000 g) might be inaccurate, depending on the damage experienced. To do this, you will need three 500 g F2-class calibration weights. You can find these in our online store here.

    If you are unable to perform a linear calibration, or a linear calibration does not correct the issue, please contact support@acaia.co to have your scale serviced.


    Linear Calibration

    A linear calibration is a more thorough method that makes sure your scale is calibrated in the lower, middle, and upper ranges of its weighing capacity. Three F2-class 500g weights are required to perform this calibration. This calibration may also help Error 303 with the caveat that the upper reaches of the weighing range (1500g - 2000g) might be inaccurate, depending on the damage experienced.
    1. With the scale powered off, press and hold the Power button.
    2. When "SEt" displays, continue to hold down the power button and press the T button. The scale will beep and show "F.0000". This is the scale’s password menu.
    3. Long presses of T button advance to the next digit, while short taps will change the value of the digits (1-9). Enter "1221" for the linear calibration setup.
    4. The scale will first calibrate a zero point. After this, you will be prompted to place 500g on the scale, then 1000g, then 1500g. Once the scale has calibrated 1500g, it will beep and read "End". Be sure to place the first weight in the middle of the weighing surface, and stack the other weights evenly. Also be sure to perform this calibration on a surface free from slight bumping or vibration.

    Comment


    • #3
      Thanks for that, but at $75 per 500g and I need 3…

      ffs 🤦‍♂️

      would a glass of weighted water do?

      Comment


      • #4
        yea id just grab 3 glasses of 500g and give it a shot, got nothing to lose

        Though may be an issue fitting them all on the scale at the same time.

        Comment


        • #5
          If the numbers are going up there's a good chance you either have a screw loose and the top is rubbing on the side, or a bloated battery. Mine was a battery, but if it was just posted to you it might have come loose in the post etc.
          https://youtube.com/shorts/L1H3bfqchWY
          https://youtube.com/shorts/i4dhwwLgAc4

          Comment


          • #6
            It’s not prompting me…

            Comment


            • #7
              I go through the menu and I put the 1221, then go to the next menu and it just stays at 00 with some random number . See attached pics
              Attached Files

              Comment


              • #8
                Originally posted by level3ninja View Post
                If the numbers are going up there's a good chance you either have a screw loose and the top is rubbing on the side, or a bloated battery. Mine was a battery, but if it was just posted to you it might have come loose in the post etc.
                https://youtube.com/shorts/L1H3bfqchWY
                https://youtube.com/shorts/i4dhwwLgAc4
                Actually I think you nailed it, it might be the battery!!! How do I fix that? New battery?
                Attached Files

                Comment


                • JohnA
                  JohnA commented
                  Editing a comment
                  yep thats a bloated battery, new battery would be needed id say

              • #9
                Yes the only way to fix it is to replace it. That's a Pearl, not a Lunar (important when ordering battery). A friend of mine just ordered one for his I'll check and let you know. I think it was from Acaia direct.

                Comment


                • #10
                  Ah ok, thanks for all your help

                  Comment


                  • #11
                    It was from these guys, the Australian agent. Raise an RMA with them.

                    Bombora Coffee + Water Supplies
                    p 1300 724 249 (+61249526498)\
                    f 1300 883 314 (+61249527807)
                    e: bree@bomborasupplies.com.au
                    Last edited by Javaphile; 12 July 2022, 11:34 AM. Reason: Commercial link removed

                    Comment


                    • #12
                      Legend mate. Thanks.

                      This group of snobs is awesome!!!

                      Comment


                      • FilthySudo
                        FilthySudo commented
                        Editing a comment
                        I hope you got the scales cheap enough. Did you test them before you bought them? Or was it posted and no visual inspection

                    • #13
                      I bought it from Brisbane and got the guy to show me a video of it in use. Must have expanded during airmail maybe

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