Bradford White D80T199 User Manual

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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 D80T199 Specifications

General

Capacity	80 Gallons
Diameter	24 inches
Fuel Type	Natural Gas
Gas Connection	1/2 inch
Anode Rod Type	Magnesium
Thermostat	Electronic
BTU Input	199, 000 BTU/hour
Vent Size	4 inches
Warranty	6-Year Limited Tank & Parts

Summary

Service Manual

Sequence of Operation

Troubleshooting

Accessing Service Mode

Error Code Definitions

Service Procedure D24-I: Thermostat Circuit Testing

Water Heater Not Operating (Error Codes 31/32)

Troubleshooting steps for upper/lower sensor reading faults.

Water Heater Not Operating (Error Code 65)

Troubleshooting for high water temperature (over 200°F).

Sensor Resistance Testing

Service Procedure D24-II: Pilot Operation Testing

Pilot Will Not Light or Stay Lit (Error Codes 62/63)

Diagnosing issues where the pilot fails to light or stay lit.

Pilot Flame Signal Issues (Error Code 4)

Service Procedure D24-III: Main Burner Operation Testing

Main Burner Will Not Light

Steps to test main burner ignition when pilot is lit.

Main Burner Short Cycles (Error Codes 63, 57, 4)

Service Procedure D24-IV: Main Burner & Pilot Removal and Inspection

Main Burner Removal and Inspection

Pilot Burner Removal and Inspection

Service Procedure D24-IV: Control Board Replacement

Service Procedure D24-V: Flue Baffle Removal, Inspection

Service Procedure D24-VI: Anode Removal and Inspection