Pratica Forza Express, Service Manual

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IMPINGEMENT SYSTEM
Frequency Inverter Troubleshooting
The frequency inverter is in constant communication with the electronic board. If the control board
registers a problem (ex. lost communication), the control board resets the inverter to fix the problem.
When an error in the frequency inverter occurs, the following indicator light will illuminate under the
display.
The electronic board will try to reestablish the communication when a problem occurs with the
frequency inverter. If the reset fixes the issue, the red triangle indicator light will turn off and the
oven will continue with its regular functioning.
If the communication is not immediately restored, the main control board will attempt to reset the
inverter ten times before an error message flashes on the inverter display as shown below.
Frequency Inverter Errors: The main control board will keep a counting log of the failures that occur
in the inverter. To know this information, follow the steps below:
•
From the OFF position (blank screen), press and hold the number 5 and On/Off key.
•
The following screen will appear showing the inverter error count.