37X INSTALLATION & OPERATION MANUAL
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7.21 Diagnostics Menu
The DIAGNOSTICS MENU (Figure 7.36) is a powerful feature of the 37x dispensers. Any time a malfunction is suspected,
the best option for the service technician is to first run the diagnostic sequence for the system involved. This can eliminate
hours of guesswork and parts swapping.
There are two diagnostic sequences:
1. Beater Circuit: This sequence will help identify any component failures in the beater circuit system such as the
beater motor and capacitors.
2. Fill Circuit: This sequence will help identify any component failures in the fill circuit system such as solution or gas
solenoids or any leaks in the product delivery system.
To begin, determine what the possible issue with the dispenser may be. Select the appropriate diagnostic sequence.
Initiate the sequence and let it perform its checks. You may be asked to perform some manual operations or answer
questions to proceed with the process. If any errors are found, the display will note the error and provide an error code.
Refer to the “Diagnostic Fault Codes” section (Section 10.3) to diagnose the cause of the error.
Figure 7.36
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