Technical Manual - Page 4
Failure Codes
(Continued)
-F5- This Code Is Not Used
-F6- Alarm EEPROM Checksum Error
The brain of this oven (so to speak) operates a series of software commands. These commands control
the various features and functions of the oven. A numerical value has been assigned to each function or
operation. The numerical values can be added up - this is the check sum operation. Every time the
system is powered up and after each clean cycle the system performs a check sum and compares
the value to the value programmed into the software. (stored in memory.)
An EEPROM check sum error or F-6 alarm occurs when the values differ. Only the time of day and
timer operation will operate. If you receive a F-6 alarm replace the ERC.
-F7- Alarm Door Lock Enabled Above Temperature
“F7” wil appear in the digits and a beeping will be heard if a failure in the clean lock/ phase circuitry is
detected for 16 seconds in a row. Check the door lock switches and door adjustments.
-F8- Alarm Door Locking Switch
Occurs when operating the door lock motor if the motor runs for two minutes without seeing the phase
switch change positions. This failure will normally occur only when a clean mode is started. If it
occurs check the door switches and wiring.
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