A.O. Smith 2000, 3400, 2600, 1700 Code Description Recommended Troubleshooting Lockout Codes

Page 67

CODE

DESCRIPTION

RECOMMENDED TROUBLESHOOTING OF

NOTE

 

 

 

LOCKOUT CODES

 

164

Block intake ON

OEM Specific

L

 

 

1.

Check wiring and correct any errors.

 

165

Block intake OFF

L

2.

Inspect the Block Intake Switch to make sure it is

 

 

 

 

 

 

working correctly.

 

 

 

3.

Reset and sequence the module.

 

 

 

4.

During Standby and Purge, measure the voltage

 

 

 

 

across the switch. Supply voltage should

 

 

 

 

be present. If not, the Block Intake Switch is

 

 

 

 

defective and needs replacing.

 

 

 

5.

If the fault persists, replace the relay module.

 

166-171

RESERVED

 

 

 

 

Feedback

 

 

 

172

Main relay feedback incorrect

Internal Fault.

L

 

 

1.

Reset Module.

 

173

Pilot relay feedback incorrect

L

2.

If fault repeats, replace module.

174

Safety relay feedback incorrect

L

 

 

175

Safety relay open

 

 

L

176

Main relay ON at safe start check

 

 

L

177

Pilot relay ON at safe start check

 

 

L

178

Safety relay ON at safe start check

 

 

L

179-183

RESERVED

 

 

 

 

Parameter Faults

 

 

 

184

Invalid BLOWER/HSI output setting

1.

Return to Configuration mode and recheck

L

185

Invalid Delta T limit enable setting

 

selected parameters, reverify and reset module.

L

2.

If fault repeats, verify electrical grounding.

186

Invalid Delta T limit response setting

L

3.

If fault repeats, replace module.

187

Invalid DHW high limit enable setting

 

 

L

188

Invalid DHW high limit response setting

 

 

L

189

Invalid Flame sensor type setting

 

 

L

190

Invalid interrupted air switch enable setting

 

 

L

191

Invalid interrupted air switch start check enable

 

 

L

 

setting

 

 

 

192

Invalid igniter on during setting

 

 

L

193

Invalid ignite failure delay setting

 

 

L

194

Invalid ignite failure response setting

1.

Return to Configuration mode and recheck

L

 

 

 

selected parameters, reverify and reset module.

 

195

Invalid ignite failure retries setting

 

L

2.

If fault repeats, verify electrical grounding.

196

Invalid ignition source setting

L

3.

If fault repeats, replace module.

197

Invalid interlock open response setting

 

 

L

198

Invalid interlock start check setting

 

 

L

199

Invalid LCI enable setting

 

 

L

200

Invalid lightoff rate setting

 

 

L

201

Invalid lightoff rate proving setting

 

 

L

202

Invalid Main Flame Establishing Period time

 

 

L

203

Invalid MFEP flame failure response setting

 

 

L

204

Invalid NTC sensor type setting

 

 

L

205

Invalid Outlet high limit response setting

 

 

L

206

Invalid Pilot Flame Establishing Period setting

 

 

L

207

Invalid PII enable setting

 

 

L

208

Invalid pilot test hold setting

 

 

L

209

Invalid Pilot type setting

 

 

L

210

Invalid Postpurge time setting

 

 

L

211

Invalid Power up with lockout setting

 

 

L

67

Image 67
Contents XP Boiler Table of Contents Approvals Safe INSTALLATION, USE and ServiceImportant Definitions General Safety Qualifications IntroductionModel Identification Abbreviations UsedOperating Characteristics Dimensions and Capacity DataDouble Heat Exchanger Boiler Rough in Dimensions Double Electrical Requirements RatingsXB Models FLOW, Head and Temperature Rise FLOW, Head and Temperature RiseSingle Heat Exchanger Boiler Components Features and ComponentsDouble Heat Exchanger Boiler Components Low water cutoff board and sensor probe Lwco Component DescriptionControl Components LOW Water Cutoff Device Lwco Flame Sensor Water Temperature SensorsWater Temperature Limit Controls Main Power Supply SwitchGeneral Boiler Installation ConsiderationsHydronic System Thermal Expansion Internal ContaminantsHOT Water Boiler System General Water Line Connections Closed Water SystemsGAS Connections Explosion HazardGAS Supply Line Sizing Corrosive Materials and Contamination SourcesLOW Voltage Control Wiring Field WiringVAC Power Supply Wiring Power Supply CheckSuggested Pipe Size for Multiple GAS Appliances Natural GAS Replacing Existing Common Vented Boiler General RequirementsRequired Ability LocationLeveling Installation ClearancesPanels and Covers Chemical Vapor CorrosionFresh AIR Openings for Confined Spaces Confined Space Outdoor AIR Through TWO OpeningsOutdoor AIR Through ONE Opening Ducts Outdoor AIR Through TWO Horizontal DuctsOutdoor AIR Through TWO Vertical Ducts AIR from Other Indoor SpacesVenting Requirements for Installation in Canada Vent and AIR Pipe InstallationAIR Inlet Pipe Materials Venting Supports Vertical Installation RequirementsHorizontal Installation Requirements Direct Vent Installation RequirementsModels Vent KIT Numbers XB/XW TEE Models Vent KIT Numbers XB/XW Rain CAPModels Vent AIR Intake XB/XW KIT Numbers Rain CAP Elbow Models Vent AIR Intake XB/XW KIT Numbers TEE ElbowDirect VENT, Vertical Vent Horizontal Intake Power Vent Termination Clearances Sidewall Power VentDirect Vent Termination Clearances Sidewall Direct VentBELOW. Keep Clear of ALL Obstructions VENT/AIR Termination Locations Direct Vent Horizontal TerminationTermination Clearances Direct Venting Vertical TerminationPrepare ROOF/WALL Penetrations VerticalModel Vent Diameter Vent MIN. Length Vent MAX. Length Inch XP Models AO Smith Condensate Neutralizer KIT Numbers Condensate DisposalCondensate Neutralizer Condensate TrapGAS Supply Pipe Connections GAS Supply ConnectionsGAS Pressure Requirements Check for GAS Leaks Pipe Sizes for Propane GASPurging GAS Line Check GAS Supply Inlet PressureManifold Pressure Connections Filling and Purging of Heating Boiler InstallationFilling HOT Water Supply Boiler Installation Boiler Start UP and OperationsWater Hardness Medium 0-12 Grains PER Gallon XW Model Freeze Protection Hydronic Heating InstallationCHECK/CONTROL Water Hardness INSPECT/FILL Condensate SystemLighting and Operating Instructions Setting of the Test Mode AdjustmentHigh Fire Rate Burner Control System Control SystemOverview Communications and Displays SpecificationsBurner Control Operation General Operational Sequence Domestic HOT Water Lead LAGLead LAG LL Master General Operation Local Operator Interface Display System FeaturesDefinitions Quick Setup S7999B OI Display Installation Instructions S7999B OI DisplayMounting the S7999B OI Display and Power Supply Navigation POWER-UP ValidationCommon OI Display page Symbols Starting UP the S7999B OI DisplayS7999B Display page Flow Status or Home Configure ButtonKeyboard Configuration PasswordLogin Change Parameter SettingsParameter Verify Example of Change ConfigurationData Comment FAULT/ALARM HandlingHistory Button Example of Hydronic History Operation Button Control Expanded Alert DetailSystem Configuration S7999B OI Display only Diagnostics ButtonSystem Synchronization S7999B OI Display only ConfigurationHydronic Control Code Description Recommended Troubleshooting Lockout Codes TroubleshootingReserved ILK OFF Flame Operation Faults 105 Flame detected out of sequence Adjust the LF switch while in this position Inspect the Combustion Pressure Switch to make Code Description Recommended Troubleshooting Lockout Codes Code Description Recommended Troubleshooting Lockout Codes Allowed Code DescriptionFan Parameter Errors Code Description Steam 20mA water temperature setting was invalid Abnormal Recycle Hardware flame bias delta high Eeprom DHW Plate Heat Exchanger Errors Inspect Boiler Area Maintenance ProceduresMaintenance Schedules General MaintenanceBlower Compartment Burner MaintenanceAIR Filter BOX Heat Exchanger Maintenance Venting MaintenanceCondensate Removal System Handling Ceramic Fiber Materials Replacement PartsInlet DIA Piping DiagramsStorage Tank AOS Conditions and Exceptions Limited Warranty

3400, 1700, 2000, 2600 specifications

A.O. Smith, a leader in water heating solutions, has developed a range of high-efficiency water heaters that cater to various residential and commercial needs. Among their stellar offerings are the A.O. Smith 2600, 2000, 1700, and 3400 models, each boasting impressive features, cutting-edge technologies, and excellent energy efficiency.

The A.O. Smith 2600 model is designed for those who require a robust water heating solution with a capacity to handle high-demand scenarios. It utilizes a highly efficient heating element that provides rapid heating and maintains a steady output. The built-in smart control system allows users to monitor temperature settings and track energy consumption, ensuring optimal performance.

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All A.O. Smith water heaters, including the 2600, 2000, 1700, and 3400 models, feature corrosion-resistant materials ensuring longevity and durability. With their commitment to quality and innovation, A.O. Smith continues to provide water heating solutions that meet modern demands while emphasizing energy efficiency and user convenience. Whether for residential or commercial use, each model represents the pinnacle of reliability and performance in water heating technology.

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