Troubleshooting - Anderson The Guardian III Manuel De L'opérateur

V Troubleshooting
Your Guardian has been carefully designed to provide years of reliable data, helping you to produce
quality milk. If you do have a problem though, your local dealer can assist you.
The following is a checklist to help you troubleshoot common issues:
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The chart is not rotating, pen does not print, and the LED display is not illuminating.

Check to see that the unit is properly wired (see the "Wiring Connections" section of the
installation manual) and that power is being applied to the recording thermometer.
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The chart is not rotating, there is no red or black line forming on the chart paper and the LED
display is illuminating.
 Check to see that the black chart hub clamp in the center of the chart is in the down (run) posi-
tion. Also make sure that the program switch behind the small calibration plate is in the "RUN"
position.
NOTE: Switch located behind screw sealed plate.
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The chart is rotating, there is no red or black line forming on the chart paper and the LED display
is illuminating.
 Check to see if the red felt tip is touching the paper. If not, gently bend the pen arm until the felt
tip makes contact with the paper. If there is still no red line, check to see if the red felt tip on
the pen arm is out of ink. Also verify that the pen cap has been removed. See the section titled
"Changing the Felt Tip of the Pen Arm" for instructions on changing the pen.
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The chart is rotating, but there are two red and black lines forming a circle around the chart.
 You need to change the chart. See the section titled "Changing your Chart" for chart changing
instructions.
???
You are concerned that the Guardian (red and/or black pen) is not accurately recording milk
temperature.
 Do a calibration check on the Guardian. See "Calibration Check" section in the Regular Main-
tenance Section of this manual.
Anderson Guardian
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