Manuals / Lochinvar / Household Appliance / Water Heater

Lochinvar 150 - 500 service manual

Models: 150 - 500

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NOTES

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Contents

Save this manual for future reference ModelsStarting Serial #H07H10046464 AW-SERRev EContents Hazard definitionsDANGER Water heater operation When servicing water heaterPlease read before proceeding Handling ceramic fiber materialsTroubleshooting What is in this manual?Service MaintenanceThe Armor water heater display 1Service1Service SMART SYSTEM CONTROL BOARDControl inputs BOARD Control outputsCONNECTION SMART SYSTEM CONTROL BOARDHow the water heater operates General Operation1Service InstallerSequence of operation OPERATIONDISPLAY Press 2 times to toggle menu listing Display panel menu access1Service Press 1 time to toggle menu listingDISPLAY Display panel parameter accessBUTTON OPERATION1Service Parameter tableB Not used C Data logging Viewable and changeable control parametersShow last 10 errors A GeneralService mode delay 1ServiceE WHR settings Reset last 10 errorsService notification cycles J Service NotificationService notification in months Service notification running hourssee the following pages for instructions 2Maintenance Maintenance and annual startupService technician Owner maintenanceInspect water heater area 2Maintenance continuedAddress reported problems Clean condensate trapCheck expansion tank 2MaintenanceFlue vent system and air piping Check water systemPerform start-upand checks Check ignition ground wiringCheck all water heater wiring Check control settingsOiled bearing circulators Check flame signalCleaning water heater heat exchanger Review with ownerCheck the following 3TroubleshootingBefore troubleshooting Check control module fuses3Troubleshooting FAULTCAUSE CORRECTIVE ACTIONResistance Ω 3Troubleshooting continuedChecking temperature sensors Temperature FCAUSE 3TroubleshootingFAULT Table 3D Troubleshooting Chart - Noisy SystemFlow Switch DESCRIPTION3Troubleshooting continued FAULTCORRECTIVE ACTION 3TroubleshootingFAULT DESCRIPTIONCORRECTIVE ACTION 3Troubleshooting continuedFAULT DESCRIPTIONDESCRIPTION 3TroubleshootingFAULT Manual ResetCORRECTIVE ACTION 3Troubleshooting continuedFAULT DESCRIPTIONCORRECTIVE ACTION 3TroubleshootingFAULT DESCRIPTIONWatch Dog Error 3Troubleshooting continuedFAULT Service BlkGas Valve Adjustment Combustion Analysis ProcedurePOSSIBLE CAUSE 3TroubleshootingFigure 3-2 Gas Valve Adjustment Models Gas valve adjustment procedure3Troubleshooting continued Figure 3-3 Gas Valve Adjustment ModelPage Page AW-SERRev E 1/09