Manuals / Bradford-White Corp / Household Appliance / Water Heater

Bradford-White Corp U4TW40TFRN, U4TW50TFRN, U4TW60T*FRN Tools Required for Service

Models: U4TW60TFRN U4TW40TFRN U4TW50T*FRN

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Tools Required

Tools Required

Contact the Bradford White technical support group immediately if diagnosis cannot be made using the methods described in this service manual.

Tools Required for Service

Manometer: A liquid “U” tube type or a digital (magna-helic) type can be used. This device is used to measure gas and/or air pressure and vacuum.

Multi-Meter:A digital type is strongly recommended. This device is used to measure electrical values. The meter you select must have the capability to measure volts AC, volts DC, amps, micro-amps and ohms.

Electronic Probes: In some cases, standard multi-meter probes will damage or simply not be effective to obtain certain voltage and ohm reading. It will be necessary to have special electronic “pin” type multi-meter probes. These probes are available at most electronic wholesale outlets.

Thermometer: Used to measure water temperature. An accurate thermometer is recommended.

Water Pressure Gage: Used to measure water supply pressure. Also used to determine tank pressure by adapting to the drain valve of the heater.

Gas Control Service Tool: BWC part number 239-45991-00. A specialized tool designed to remove the gas control from gas control thermal well. Available from your Bradford White parts supplier.

Various Hand Tools: Pipe wrench, channel locks, open end wrenches (3/8", 7/16", 1/2"), 12" crescent wrench, Allen wrench set, screw drivers (common & Phillips), 1/4" nut driver, pliers (common & needle nose), socket set, side cutters, wire cutters, wire strippers, wire crimpers, torpedo level, small shop vac, step ladder, flashlight, and 5 gallon pail.

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Bradford-White Corp U4TW40T*FRN, U4TW50T*FRN, U4TW60T*FRN service manual Tools Required for Service

Contents

Denotes Warranty Years Model Shown U-4-TW-40T6FRN SERVICE MANUALTroubleshooting Guide and Instructions for Service To be performed ONLY by qualified service providersPage SectionTable of Contents DANGER FAILURE TO INSTALL AND MAINTAIN A NEW, LISTED 3/4” X 3/4” TEM Introduction The Bradford White ECO-DEFENDER Safety SystemIntroduction How the Safety System Works How to Use this ManualHow to Use this Manual Tools Required for Service Tools RequiredPage Specifications40 Gallon 50 Gallon 60 Gallon Vent TablesSpecifications Page48 Gallon 65 Gallon SpecificationsVent Tables PagePage Wiring DiagramControl Timings SpecificationsSequence of Operation Power Up SequenceNormal Heating Sequence Abnormal Operation Normal Heating Sequence cont’dSequence of Operation Sequence of Operation Abnormal Operation cont’dSequence of Operation 4. Trial for Ignition FaultAbnormal Operation cont’d Sequence of Operation 5. Flame Sensing FaultAbnormal Operation cont’d LED Status TroubleshootingService Procedure PageLED Status TroubleshootingService Procedure PageLED Status TroubleshootingService Procedure PageBurner Cleaning Procedure Burner MaintenanceBurner Inspection Burner Maintenance Burner Cleaning Procedure cont’dPilot Inspection, Testing and Replacement Pilot MaintenanceBurner Cleaning Procedure cont’d Pilot Maintenance Pilot Inspection, Testing and Replacement cont’dPage Pressure Switch Testing Pressure Switch TestingPilot Inspection, Testing and Replacement cont’d Pressure Switch Testing Pressure Switch Testing cont’dPage Pressure Switch Replacement Pressure Switch ReplacementBlower Testing Blower TestingPage Blower Installation Blower ReplacementBlower Removal Blower Installation cont’d Blower Temperature Switch TestingBlower Temperature Switch Testing Common causes for high exhaust temperature Blower Temperature Switch Testing cont’dBlower Temperature Switch Testing Switch SettingBlower Temperature Switch Replacement Blower Temperature Switch ReplacementThermal Well Testing Thermal Well TestingThermal Well Testing cont’d Determine Tank TemperatureDetermine Water Temperature Inside Tank Page Component DisassemblySensor Resistance at Various Temperatures Gas Control & Thermal Well Removal From Water HeaterPage Gas Control RemovalGas Control Assembly to the Thermal Well Gas Control AssemblyGas Control Removal From Thermal Well cont’d Gas Control Assembly Gas Control Assembly to the Thermal Well cont’dDoing so will damage the connector. Use special pin type Flammable Vapor Sensor TestingFlammable Vapor Sensor Testing Gas Control Assembly to the Thermal Well cont’dPage 115 VAC Circuit TraceSafety Circuit Voltage Trace Safety Circuit Voltage TracePage Blower Removal Remove the Blower to Gain Access to the Flue BaffleDip Tube Inspection and Replacement Remove the Blower to Gain Access to the Flue Baffle cont’dDip Tube Inspection Anode Inspection Anode Inspection and ReplacementInner Door Removal Inner Door Removal ProcedureInner Door Removal Procedure cont’d Inner Door Gasket ReplacementInner Door Gasket Replacement Procedure Inner Door Installation with Gasket Inner Door InstallationScreenLok Flame Arrestor Cleaning Procedure Arrestor CleaningCommon Terms Common TermsPage Parts ListPart Name and Description Email parts@bradfordwhite.com techserv@bradfordwhite.com