When troubleshooting, it is very important NOT to assume there is a problem after only one occurrence.  Get two or three readings that indicate that there is a problem with the meter before making an effort to troubleshoot your meter.  The more occurrences you have on record, the easier it will be to single out the problem.
    To determine that there is a problem with your meter, compare your degree day readings with the readings of either the local weather service or a company in your area that has a degree day meter (preferably a Johnson Degree Day Meter).  Due to the method of calculation it is better to compare your readings with a degree day meter rather than the weather service.  For the best results compare with more than one other source of degree days.  For help finding a company in your area with a degree day meter, please call our service center.
    Once you have determined there is a definite problem, you can use the following three steps to help you single out the cause of the false readings.
 

    1.    If you know what test to perform, click on the appropriate link:  TEST 1, TEST 2, TEST 3.  Otherwise use the page titled POSSIBLE PROBLEMS to find the description that most closely resembles the problem you are experiencing.

    2.    If the problem requires you to complete a test, use the appropriate links in the possible problems page to find instructions on how to perform the test.  The final step in the test instructions will indicate which unit is causing the false readings.  If the problem does not require a test, refer to step three.

    3.    After determining which unit is causing the false readings, send the unit into our service center for testing and repair.   Click HERE for shipping instructions.
 

    Click HERE to see the pricing for repair and recalibration, as well as, our warranty. If you have any questions regarding the instructions or if you would just like to get  a more detailed explanation of the specific cause of the false readings, please call Johnson Degree Day Systems at (269) 343-1221.