Remedy: 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Confirm that the EEPROM has been properly installed. 3. Check the control software and upgrade to the latest, if necessary. 4. If not corrected, Replace the control PWB and check for correct operation.
Code: F051
Description: Scan engine ROM checksum error
Causes: Control PWB
Remedy: 1. Turn the main power swtch off and after 5 seconds, then turn power on. 2. Confirm that the EEPROM has been properly installed. 3. Check the control software and upgrade to the latest, if necessary. 4. If not corrected, Replace the control PWB and check for correct operation.