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Chapter 13: Troubleshooting
If you have problems with the display or the Midtronics printer, try these troubleshooting suggestions:
The Display Does Not Turn On
• Check the connection to the vehicle battery.
• Press the POWER button.
• The vehicle’s battery may be too low to power the analyzer (below 1 volt). Fully charge
the battery and retest.
• The analyzer’s 6 AA batteries may need to be replaced. Follow the directions in
Chapter 14: EXP Internal Batteries and replace the batteries (alkaline recommended).
• If troubleshooting does not solve the problem, contact Midtronics at 1-800-776-1995 to
obtain service. See “Patents, Limited Warranty, Service” for more information.
The STATUS LED Flashes (Midtronics Printer)
When a printer fault occurs, the STATUS LED ashes. You can identify the fault by the number of
sequential ashes:
Table 6: Printer STATUS LED
Sequence Condition Solution
* * *
No paper Insert new paper
** ** **
Thermal head too hot Allow head to cool
*** *** ***
Batteries weak Recharge printer
batteries for 16 hours
Data Will Not Print
• If the IR transmitter and receiver are not aligned, all the data may not print. The infrared
ports on the top of the analyzer and on the printer below the MODE button should be
pointed directly at each other. The maximum distance for reliable transmission between
the ports is 17 in (45 cm).
To realign, press the END button to cancel the print job. Verify alignment between the
analyzer and printer; then try to print the test results again.
• Make sure the printer is on. The printer shuts off after 2 minutes of inactivity to conserve
the batteries. To turn the printer on, briefly press the MODE button. The green STATUS
light should turn on. Make sure you are using the Midtronics printer. Other printers may
not be compatible.
Chapter 13: Troubleshooting
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