Bradford White D80L399 User Manual

Save this manual for future reference
Manual 47985A REV 08/18
SERVICE
MANUAL
Troubleshooting Guide
and Instructions for Service
(To be performed ONLY by
qualified service providers)
Models Covered
by This Manual:
For The Bradford White
“D” Series Models:
D38T155
D75T(125,160,300)
D65T(370,399)
D80T(180,199,250)
D80T(425,505)
D100T(199,250)
D80L(399,450,505)
D100L(199,250,270,300)
D100S(199,250)
Gas Water Heaters
COMMERCIAL 24 VOLT FLUE DAMPER
SERIES WATER HEATER WITH HONEYWELL
INTEGRATED CONTROL SYSTEM
®

Bradford White D80L399 Specifications

General

Brand	Bradford White
Model	D80L399
Category	Water Heater
Language	English

Summary

Introduction

Tools Required for Service

Lists essential tools for water heater servicing and troubleshooting procedures.

Specifications

Sequence of Operation

Troubleshooting

Using Control Display for Servicing the Water Heater

Guide on accessing and using the water heater's control display for diagnostics and settings.

Error Code History Display

Explains how to view past error codes stored in the water heater's memory.

Honeywell Integrated Control Error Code Definitions

Lists and defines error codes displayed on the control panel for troubleshooting.

Resetting Lockout Conditions

Procedure for resetting soft and hard lockout conditions after malfunctions.

SERVICE PROCEDURE D24-I Thermostat Circuit Testing

Sensor Resistance Testing

Details how to test sensor resistance against temperature for troubleshooting.

SERVICE PROCEDURE D24-II Pilot Operation Testing

Pilot Inspection

Guide for inspecting the pilot assembly for proper function and potential issues.

SERVICE PROCEDURE D24-III Main Burner Operation Testing

SERVICE PROCEDURE D24-IV Main Burner & Pilot Removal and Inspection

Pilot Burner Removal

Step-by-step instructions for removing the pilot burner assembly.

Pilot Burner Inspection

Procedures for inspecting the pilot assembly, including orifice and ceramic insulators.

SERVICE PROCEDURE D24-IV Control Board Replacement

SERVICE PROCEDURE D24-V Flue Baffle Removal, Inspection

SERVICE PROCEDURE D24-VI Anode Removal and Inspection

Approximate Anode Rod Locations

Diagrams showing the location of anode rods for various water heater models.

Generic Parts List

Glossary of Terms