A.O. Smith INTELLI-VENT - Intelli-Vent Error Codes 7-9: Internal Control Failures; Intelli-Vent Error Code 10: Flame Sensed Out of Sequence

INTELLI-VENT TROUBLESHOOTING GUIDE
Technical Training Department Ashland City, Tennessee © 2005
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ERROR CODES - 7, 8, 9 - INTERNAL CONTROL FAILURES
Self diagnostic tests have found a problem with the gas valve driver circuit, internal
microprocessor, or the internal circuits.
Check / Repair:
• Turn the power off for 10-20 seconds then on again to clear these error codes.
• If any of these error codes persist or cannot be cleared - replace the Intelli-Vent™
control.
ERROR CODE 10 - FLAME SENSED OUT OF SEQUENCE
Flame signal has been sensed out of proper sequence.
Check / Repair:
• Insure flame sensor ceramic insulator is not cracked - replace ignitor assembly if
defective.
• Turn the power off for 10-20 seconds and then on again to clear this error code.
• Replace the Intelli-Vent™ control if this error code persists.
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