A.O. Smith 201 Boiler User Manual


 
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For additional information please refer to the User’s Manual supplied with the boiler or contact:
A.O. Smith Technical Services 7 a.m. to 7 p.m. Central Time at:
1-800-527-1953
Our Internet Site is another source of information 24 hours a day.
http://www.hotwater.com
Table 19. Error Code Chart
GENESIS II CONTROL - FAULT OPERATION
FAULT ERROR CODES LOCKOUT
COMMUNICATIONS FAULT (CCB TO ICB)
STAGE 1: 001 HARD
STAGE 2: 002 HARD
STAGE 3: 003 HARD
STAGE 4: 004 HARD
ECO/HIGH LIMIT: 010 HARD
NO GAS VALVE POWER SENSED
STAGE 1: 011 HARD
STAGE 2: 012 HARD
STAGE 3: 013 HARD
STAGE 4: 014 HARD
LWCO 020 HARD
CIRCULATE FAULT (FLOW SWITCH) 030 SOFT
INSUFFICIENT AIR (AIR PRESSURE SWITCH)
STAGE 1: 041 SOFT
STAGE 2: 042 SOFT
STAGE 3: 043 SOFT
STAGE 4: 044 SOFT
BLOCKED FLUE 060 SOFT
POWER VENT 070 SOFT
IGNITER FAILURE
STAGE 1: 081 HARD
STAGE 2: 082 HARD
STAGE 3: 083 HARD
STAGE 4: 084 HARD
LOW GAS FAILURE 090 HARD
HIGH GAS FAILURE
STAGE 1: 101 HARD
STAGE 2: 102 HARD
STAGE 3: 103 HARD
STAGE 4: 104 HARD
GAS VALVE RELAY FAILURE
STAGE 1: 111 HARD
STAGE 2: 112 HARD
STAGE 3: 113 HARD
STAGE 4: 114 HARD
FLAME FAILURE
STAGE 1: 121 HARD
STAGE 2: 122 HARD
STAGE 3: 123 HARD
STAGE 4: 124 HARD
PROBE FAULTS
OUTLET PROBE 131 HARD
INLET PROBE 132 HARD
REMOTE PROBE 133 HARD
IRI GAS VALVE FAILURE 140 HARD
CPU FAULT 210 HARD