Fault Codes - A.O. Smith Cyclone Xi Service Handbook

FAULT CODES

All faults, warnings, and errors are given in
plain English text. Some have a Code
alpha/numeric value assigned. Please read
the full English text and not the
alpha/numeric value when calling for
assistance.
Following is a complete list of all faults,
warnings, and errors for this commercial gas
control.
0x0D: AC Reversed
0x45: Upper Probe Short.
0x46: Lower Probe Short..
0x47: Upper Probe Open
0x48: Lower Probe Open
0xB4: Flame Probe Short
0xA9: Flame Detect Error
0xA5: Energy Cut Out (ECO)
0xA6: Low Gas
0xA7: Blocked Air Intake
0xA8: Blocked Exhaust Event
0xAC: Blower Prover Failure
0x1AC: Blower Prover Open
0xAE: Igniter Current Error.
0x1AE: Low Igniter Current.
0xB2: Ignition Failure.
0xAA: Gas Valve Error
0x1AA: Gas Valve Failure
EEPROM Failure.
Hardware Failure
RAM Failure
UIM Screen
Model Config Fail.
A.O. Smith – Technical Training Department
CYCLONE Xi COMMERCIAL GAS WATER HEATER
BTH 120 thru 500 SERVICE HANDBOOK
Servicing should only be performed by a Qualified Service Agent
Power Supply Fail.
MCB Comm Error.
Communication Failure.
Low Anode Protection (Warning).
0xD2: No Anode Current (Warning)
0xD6: No Anode Voltage (Warning)
22 Ashland City, Tennessee © 2007
316586-000 ©2009