9 models · 306 error codes
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Replace ADSENSE_PUBLISHER_ID in AdUnit.tsx
02
Ignition Failure
03
Bath Fill Function Abnormality
05
Blocked Exhaust / Air Supply
10
Blocked Exhaust — Air Pressure Switch
11
No Ignition
12
Flame Failure
14
Thermal Fuse Activated
16
Over Temperature
19
Electrical Grounding Issue
25
Condensate Drain Blockage
29
Condensate Drain Sensor Fault
31
Inlet Thermistor Failure
32
Outgoing Thermistor Failure
33
Heating Circuit Sensor Failure
34
Combustion Air Temp Sensor Failure
41
Abnormal Temperature Rise
43
Heat Exchanger Issue
51
Gas Proportional Valve Failure
52
Gas Solenoid Valve Failure
57
Bypass Servo Valve Failure
61
Combustion Fan Failure
65
Water Flow Control Failure
70
Electronic Control Board Failure
71
Gas Solenoid Valve Circuit Fault
72
Flame Detection Circuit Fault
79
Current Sensor Failure
LC
Scale Buildup — Maintenance Required
SCALE BUILDUP
Scale / Lime Mineral Deposits in Heat Exchanger
COLD SANDWICH
Cold Water Sandwich Effect
CROSSOVER
Hot/Cold Water Crossover from Fixtures
VENT BLOCKAGE
Exhaust Vent Obstruction
MIN FLOW
Minimum Flow Rate Not Met
GAS SUPPLY
Gas Supply Insufficient
FREEZE DAMAGE
Freeze / Cold Weather Damage
02
Ignition Failure
03
Bath Fill Function Abnormality
05
Blocked Exhaust / Air Supply
10
Blocked Exhaust — Air Pressure Switch
11
No Ignition
12
Flame Failure
14
Thermal Fuse Activated
16
Over Temperature
19
Electrical Grounding Issue
25
Condensate Drain Blockage
29
Condensate Drain Sensor Fault
31
Inlet Thermistor Failure
32
Outgoing Thermistor Failure
33
Heating Circuit Sensor Failure
34
Combustion Air Temp Sensor Failure
41
Abnormal Temperature Rise
43
Heat Exchanger Issue
51
Gas Proportional Valve Failure
52
Gas Solenoid Valve Failure
57
Bypass Servo Valve Failure
61
Combustion Fan Failure
65
Water Flow Control Failure
70
Electronic Control Board Failure
71
Gas Solenoid Valve Circuit Fault
72
Flame Detection Circuit Fault
79
Current Sensor Failure
LC
Scale Buildup — Maintenance Required
SCALE BUILDUP
Scale / Lime Mineral Deposits in Heat Exchanger
COLD SANDWICH
Cold Water Sandwich Effect
CROSSOVER
Hot/Cold Water Crossover from Fixtures
VENT BLOCKAGE
Exhaust Vent Obstruction
MIN FLOW
Minimum Flow Rate Not Met
GAS SUPPLY
Gas Supply Insufficient
FREEZE DAMAGE
Freeze / Cold Weather Damage
02
Ignition Failure
03
Bath Fill Function Abnormality
05
Blocked Exhaust / Air Supply
10
Blocked Exhaust — Air Pressure Switch
11
No Ignition
12
Flame Failure
14
Thermal Fuse Activated
16
Over Temperature
19
Electrical Grounding Issue
25
Condensate Drain Blockage
29
Condensate Drain Sensor Fault
31
Inlet Thermistor Failure
32
Outgoing Thermistor Failure
33
Heating Circuit Sensor Failure
34
Combustion Air Temp Sensor Failure
41
Abnormal Temperature Rise
43
Heat Exchanger Issue
51
Gas Proportional Valve Failure
52
Gas Solenoid Valve Failure
57
Bypass Servo Valve Failure
61
Combustion Fan Failure
65
Water Flow Control Failure
70
Electronic Control Board Failure
71
Gas Solenoid Valve Circuit Fault
72
Flame Detection Circuit Fault
79
Current Sensor Failure
LC
Scale Buildup — Maintenance Required
SCALE BUILDUP
Scale / Lime Mineral Deposits in Heat Exchanger
COLD SANDWICH
Cold Water Sandwich Effect
CROSSOVER
Hot/Cold Water Crossover from Fixtures
VENT BLOCKAGE
Exhaust Vent Obstruction
MIN FLOW
Minimum Flow Rate Not Met
GAS SUPPLY
Gas Supply Insufficient
FREEZE DAMAGE
Freeze / Cold Weather Damage
02
Ignition Failure
03
Bath Fill Function Abnormality
05
Blocked Exhaust / Air Supply
10
Blocked Exhaust — Air Pressure Switch
11
No Ignition
12
Flame Failure
14
Thermal Fuse Activated
16
Over Temperature
19
Electrical Grounding Issue
25
Condensate Drain Blockage
29
Condensate Drain Sensor Fault
31
Inlet Thermistor Failure
32
Outgoing Thermistor Failure
33
Heating Circuit Sensor Failure
34
Combustion Air Temp Sensor Failure
41
Abnormal Temperature Rise
43
Heat Exchanger Issue
51
Gas Proportional Valve Failure
52
Gas Solenoid Valve Failure
57
Bypass Servo Valve Failure
61
Combustion Fan Failure
65
Water Flow Control Failure
70
Electronic Control Board Failure
71
Gas Solenoid Valve Circuit Fault
72
Flame Detection Circuit Fault
79
Current Sensor Failure
LC
Scale Buildup — Maintenance Required
SCALE BUILDUP
Scale / Lime Mineral Deposits in Heat Exchanger
COLD SANDWICH
Cold Water Sandwich Effect
CROSSOVER
Hot/Cold Water Crossover from Fixtures
VENT BLOCKAGE
Exhaust Vent Obstruction
MIN FLOW
Minimum Flow Rate Not Met
GAS SUPPLY
Gas Supply Insufficient
FREEZE DAMAGE
Freeze / Cold Weather Damage
02
Ignition Failure
03
Bath Fill Function Abnormality
05
Blocked Exhaust / Air Supply
10
Blocked Exhaust — Air Pressure Switch
11
No Ignition
12
Flame Failure
14
Thermal Fuse Activated
16
Over Temperature
19
Electrical Grounding Issue
25
Condensate Drain Blockage
29
Condensate Drain Sensor Fault
31
Inlet Thermistor Failure
32
Outgoing Thermistor Failure
33
Heating Circuit Sensor Failure
34
Combustion Air Temp Sensor Failure
41
Abnormal Temperature Rise
43
Heat Exchanger Issue
51
Gas Proportional Valve Failure
52
Gas Solenoid Valve Failure
57
Bypass Servo Valve Failure
61
Combustion Fan Failure
65
Water Flow Control Failure
70
Electronic Control Board Failure
71
Gas Solenoid Valve Circuit Fault
72
Flame Detection Circuit Fault
79
Current Sensor Failure
LC
Scale Buildup — Maintenance Required
SCALE BUILDUP
Scale / Lime Mineral Deposits in Heat Exchanger
COLD SANDWICH
Cold Water Sandwich Effect
CROSSOVER
Hot/Cold Water Crossover from Fixtures
VENT BLOCKAGE
Exhaust Vent Obstruction
MIN FLOW
Minimum Flow Rate Not Met
GAS SUPPLY
Gas Supply Insufficient
FREEZE DAMAGE
Freeze / Cold Weather Damage
02
Ignition Failure
03
Bath Fill Function Abnormality
05
Blocked Exhaust / Air Supply
10
Blocked Exhaust — Air Pressure Switch
11
No Ignition
12
Flame Failure
14
Thermal Fuse Activated
16
Over Temperature
19
Electrical Grounding Issue
25
Condensate Drain Blockage
29
Condensate Drain Sensor Fault
31
Inlet Thermistor Failure
32
Outgoing Thermistor Failure
33
Heating Circuit Sensor Failure
34
Combustion Air Temp Sensor Failure
41
Abnormal Temperature Rise
43
Heat Exchanger Issue
51
Gas Proportional Valve Failure
52
Gas Solenoid Valve Failure
57
Bypass Servo Valve Failure
61
Combustion Fan Failure
65
Water Flow Control Failure
70
Electronic Control Board Failure
71
Gas Solenoid Valve Circuit Fault
72
Flame Detection Circuit Fault
79
Current Sensor Failure
LC
Scale Buildup — Maintenance Required
SCALE BUILDUP
Scale / Lime Mineral Deposits in Heat Exchanger
COLD SANDWICH
Cold Water Sandwich Effect
CROSSOVER
Hot/Cold Water Crossover from Fixtures
VENT BLOCKAGE
Exhaust Vent Obstruction
MIN FLOW
Minimum Flow Rate Not Met
GAS SUPPLY
Gas Supply Insufficient
FREEZE DAMAGE
Freeze / Cold Weather Damage
02
Ignition Failure
03
Bath Fill Function Abnormality
05
Blocked Exhaust / Air Supply
10
Blocked Exhaust — Air Pressure Switch
11
No Ignition
12
Flame Failure
14
Thermal Fuse Activated
16
Over Temperature
19
Electrical Grounding Issue
25
Condensate Drain Blockage
29
Condensate Drain Sensor Fault
31
Inlet Thermistor Failure
32
Outgoing Thermistor Failure
33
Heating Circuit Sensor Failure
34
Combustion Air Temp Sensor Failure
41
Abnormal Temperature Rise
43
Heat Exchanger Issue
51
Gas Proportional Valve Failure
52
Gas Solenoid Valve Failure
57
Bypass Servo Valve Failure
61
Combustion Fan Failure
65
Water Flow Control Failure
70
Electronic Control Board Failure
71
Gas Solenoid Valve Circuit Fault
72
Flame Detection Circuit Fault
79
Current Sensor Failure
LC
Scale Buildup — Maintenance Required
SCALE BUILDUP
Scale / Lime Mineral Deposits in Heat Exchanger
COLD SANDWICH
Cold Water Sandwich Effect
CROSSOVER
Hot/Cold Water Crossover from Fixtures
VENT BLOCKAGE
Exhaust Vent Obstruction
MIN FLOW
Minimum Flow Rate Not Met
GAS SUPPLY
Gas Supply Insufficient
FREEZE DAMAGE
Freeze / Cold Weather Damage
02
Ignition Failure
03
Bath Fill Function Abnormality
05
Blocked Exhaust / Air Supply
10
Blocked Exhaust — Air Pressure Switch
11
No Ignition
12
Flame Failure
14
Thermal Fuse Activated
16
Over Temperature
19
Electrical Grounding Issue
25
Condensate Drain Blockage
29
Condensate Drain Sensor Fault
31
Inlet Thermistor Failure
32
Outgoing Thermistor Failure
33
Heating Circuit Sensor Failure
34
Combustion Air Temp Sensor Failure
41
Abnormal Temperature Rise
43
Heat Exchanger Issue
51
Gas Proportional Valve Failure
52
Gas Solenoid Valve Failure
57
Bypass Servo Valve Failure
61
Combustion Fan Failure
65
Water Flow Control Failure
70
Electronic Control Board Failure
71
Gas Solenoid Valve Circuit Fault
72
Flame Detection Circuit Fault
79
Current Sensor Failure
LC
Scale Buildup — Maintenance Required
SCALE BUILDUP
Scale / Lime Mineral Deposits in Heat Exchanger
COLD SANDWICH
Cold Water Sandwich Effect
CROSSOVER
Hot/Cold Water Crossover from Fixtures
VENT BLOCKAGE
Exhaust Vent Obstruction
MIN FLOW
Minimum Flow Rate Not Met
GAS SUPPLY
Gas Supply Insufficient
FREEZE DAMAGE
Freeze / Cold Weather Damage
02
Ignition Failure
03
Bath Fill Function Abnormality
05
Blocked Exhaust / Air Supply
10
Blocked Exhaust — Air Pressure Switch
11
No Ignition
12
Flame Failure
14
Thermal Fuse Activated
16
Over Temperature
19
Electrical Grounding Issue
25
Condensate Drain Blockage
29
Condensate Drain Sensor Fault
31
Inlet Thermistor Failure
32
Outgoing Thermistor Failure
33
Heating Circuit Sensor Failure
34
Combustion Air Temp Sensor Failure
41
Abnormal Temperature Rise
43
Heat Exchanger Issue
51
Gas Proportional Valve Failure
52
Gas Solenoid Valve Failure
57
Bypass Servo Valve Failure
61
Combustion Fan Failure
65
Water Flow Control Failure
70
Electronic Control Board Failure
71
Gas Solenoid Valve Circuit Fault
72
Flame Detection Circuit Fault
79
Current Sensor Failure
LC
Scale Buildup — Maintenance Required
SCALE BUILDUP
Scale / Lime Mineral Deposits in Heat Exchanger
COLD SANDWICH
Cold Water Sandwich Effect
CROSSOVER
Hot/Cold Water Crossover from Fixtures
VENT BLOCKAGE
Exhaust Vent Obstruction
MIN FLOW
Minimum Flow Rate Not Met
GAS SUPPLY
Gas Supply Insufficient
FREEZE DAMAGE
Freeze / Cold Weather Damage
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Replace ADSENSE_PUBLISHER_ID in AdUnit.tsx
