Bradford-White Corp D-38T-155 specs

NOTES

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Bradford-White Corp D-38T-155 service manual

Contents

To be performed only by qualified service providers Service Manual Table of Contents Features of Honeywell Integrated Controls System Tools Required for Service Specifications Lockout Condition Sequence of Operation Defective TroubleshootingPins to black and white wires Voltage at primary pins 1&3 white Operate? Displaying temperature SensorsExample of error code shown on control display From previous Using Control Display for Servicing Water Heater Sensor is used Setpoint Display/Change Software Version Display only Select SET Display of Water Temperature ExitingSELECTServiceSETMode To Display Flame Sense Current of the Pilot Flame Sensor To Display and Change Temperature Setpoint Setpoint Flashes Selectset Idle Status Operational Error Code History Error Codes and Error History Display To view previous error codes ExitingSELECTServiceSET Mode Error Code Definitions Press for 3 seconds to reset control in service mode Error Code Shown Water Heater Display State without correcting the cause Service Procedure D24-IThermostat Circuit Testing Do not reset the display from the hard lockout Service Procedure D24-I Lower Sensor Upper SensorUpper thermister location Applicable models Pilot Operation Testing Service Procedure D24-II131 Pilot Inspection Micro Amp = Micro-amp readings MeterProbe Meter Probe Main Burner Operation Testing Service Procedure D24-III114 Inspection Build-up causing restrictionHeater. Refer to Installation Instructions See Pilot Inspection section Main Burner Inspection Service Procedure D24-IVMain Burner & Pilot Removal and Inspection Main Burner Removal Ferrule Nut Pilot Burner RemovalPilot Burner Inspection Flame Rod Control board replacement Control Board ReplacementTo remove lower sensor Flue Baffle Removal, Inspection Service Procedure D24-V Service Procedure D24-VI Approximate Anode Rod Locations 15A 16/16A 17/17A Generic Parts List 13A 14A 16A 17A6A 11A 10A 18A 15A 19A 12A 20A 14B 15B 19B 20B 17B18B 16B 12B10B 13B GFI BTU/HCO2 ECOPage Page Parts@bradfordwhite.com Techserv@bradfordwhite.com