Tech Sheet

FOR SERVICE TECHNICIAN’S USE ONLY
12
Fault/Error Codes & Troubleshooting Steps
The fault codes below may be indicated under various conditions and can be accessed through Service Diagnostics.
Fault codes are displayed by alternately showing F# and E#. All fault codes have an F# and an E#. The F# indicates the suspect System/Category. The E#
indicates the suspect Component system.
Display EXPLANATION AND RECOMMENDED PROCEDURE
F1E0 Check User Interface Board - EEPROM Communication Error
The user interface board(s) is locked up due to an unexpected internal communication error. This is often corrected by cycling power.
Possible Causes: Software/EEPROM or Internal UI Board memory chip failure.
Recommended Procedure: See TEST #4 (User Interface Input Voltage and Communication) on page 20.
F1E1 Control Relay Board - EEPROM Communication Error
Immediately after the Oven control sees an unexpected event.
Possible Causes: There may be a problem with the oven control(s) or the associated wiring.
Recommended Procedure: See TEST #1 and #2 (Main Control (ACU)) on page 17 and 18.
F2E1 Stuck Key - Button Functionality Error
Start button or Light Button has lost function.
Possible Causes: A keypad has been pressed for an extended period of time.
The result of the user pressing a keypad for too long.
Recommended Procedure: See TEST #12 (Start or Light Button) on page 30.
F2E2 Oven Knob - Rotary Encoder Open/Shorted
Problem with the user interface board(s) - Rotary Encoder Open/Shorted.
Possible causes: Rotary Encoder Open/Shorted. Can occur within 120 seconds of rotary encoder open/shorted.
Recommended Procedure: See TEST #13 (Knob) on page 31.