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

Bradford-White Corp Eco Defender, U130T*FRN The Bradford White, Ultra Low NOx Gas Water Heaters

Models: U130T*FRN Eco Defender

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The Bradford White

Ultra Low NOx Gas Water Heaters

	Page	Service Procedure
Introduction	3	- - -
Gas Control Troubleshooting Chart	5	- - -
Tools Required for Service	4	- - -
Burner and Inner Door Gasket Removal, Inspection, Replacement
and Installation	7	ED-I
Thermopile Testing and Replacement	10	ED-II
Pilot Assembly Inspection, Cleaning and Replacement	12	ED-III
Igniter and Electrode Testing and Replacement	13	ED-IV
Gas Control Replacement Thermal Well and Chamber Door Sensor
Testing and Replacement	14	ED-V
Burner Operation Inspection, Cleaning and Replacement	19	ED-VI
Resettable Thermal Switch Testing and Replacement	21	ED-VII
ScreenLok R Flame Arrestor Cleaning	23	ED-VIII
Dip Tube and Anode Inspection and Replacement	24	ED-IX
Generic Parts List	26	- - -

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Bradford-White Corp Eco Defender, U130T*FRN warranty The Bradford White, Ultra Low NOx Gas Water Heaters

Contents

The Bradford White To be performed ONLY by qualified service providersU1503*FRNU1XR403S*FRN Denotes Warranty Years Save this manual for future referenceThe Bradford White Ultra Low NOx Gas Water HeatersINTRODUCTION How the Safety System WorksHow to Use This Manual Probable Cause Service ProcedureLED Status Control StatusProbable Cause Service ProcedureLED Status Inner Door Removal Procedure Material left on combustion chamber around openingplace. DO NOT OVER TIGHTEN SCREWS Inner Door Gasket Replacement ProcedureInstallation of Inner Door With Gasket Step 15. Replace outer jacket burner access door Left Side of Wire Harness CLOSED CIRCUIT THERMOPILE TESTING Honeywell ControlOPEN CIRCUIT THERMOPILE TESTING Thermopile Position THERMOPILE REPLACEMENTGas Control Knob Shown In “OFF” Position a Primary air openings for blockage. Must be free PILOT/ELECTRODE ASSEMBLY INSPECTION CLEANING AND REPLACEMENTa Remove 7/16 nut from bottom of pilot assembly IGNITER, ELECTRODE TESTING AND REPLACEMENT Igniter LeadObserve heater operation. If control Thermal Well TestingThermal well testing see pageSensor Resistance at Various Temperatures Determine Water Temperature Inside TankTake necessary precaution to prevent personal injury Gas Control Gas Control & Thermal Well Removal From Water HeaterGas Control Removal From Thermal Well Gas Control Assembly to Thermal Well Step 1. Turn the gas control knob to the “OFF” position CHAMBER SENSOR TESTINGSensor Resistance at Various Temperatures DANGER MAIN BURNER Inspection Cleaning and Replacementnecessary precaution to prevent personal injury BURNER CLEANING BURNER CLEANING Cont PROBABLE CAUSE RESETTABLE THERMAL SWITCH CONTINUITY TESTINGPROBABLE CAUSE FOR RESETTABLE THERMAL SWITCH ACTIVATION CORRECTIVE ACTIONRESETTABLE THERMAL SWITCH REPLACEMENT DO NOT OVER TIGHTEN SCREWSScreenLok Flame Arrestor Cleaning DIP TUBE INSPECTION AND REPLACEMENT ANODE INSPECTION AND REPLACEMENT this procedure. Take necessary precaution to prevent personal injury17 Screw #8-18 x ½ Hex Washer Head 18 Resettable Thermal Switch 11 Outer Door 12 Draft Diverter 13 Complete Burner Assembly14 RN Burner and Door 15 Flexible Gas Feed Line 16 Pilot Assembly 26 Wire Tie 27 ASSE Approved Mixing Valve Optional 28 ThermopilePage Email parts@bradfordwhite.com techserv@bradfordwhite.com