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Bradford-White Corp
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Water Heater
Bradford-White Corp
- page 40
Models:
M1TW40S*F
M1TW50S*F
M1TW60T*F
M2TW50T*F
M2TW65T*F
M4TW40T*F
M4TW50T*F
M4TW60T*F
TW450S65F
TW465S65F
1
40
40
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40 pages, 2.83 Mb
Email
parts@bradfordwhite.com
techserv@bradfordwhite.com
www.bradfordwhite.com
Contents
Main
SERVICE MANUAL
TTW Series
The Bradford White
Through-The-Wall Gas Water Heaters
WARNING:
FOR YOUR SAFETY
CAUTION
WARNING
CAUTION
Introduction
Page
Specifications
Page
Vent Tables
Control Timings
Specifications
Blower Housing
Wiring Diagram
Page
Steady state operation.
Sequence of Operation
Thermostat satisfies Burner off. Blower post purge (15 seconds).
1. Flammable Vapor Sensor Fault:
2. Temperature Sensor Fault:
Sequence of Operation
3. Pressure Switch/Blower Temperature Fault:
4. Trial For Ignition Fault:
5. Flame Sensing Fault:
Troubleshooting
LED Status
Control Status
Service Procedure
Probable Cause
LED Status Control Status
Service Procedure
Probable Cause
Troubleshooting
Burner Inspection and Air Shutter Adjustment.
Cast Iron Burner Air Shutter Adjustment
Burner Cleaning
Pilot Inspection, Testing and Replacement
TTW SERVICE PROCEDURE III Pressure Switch Testing and Replacement
Pressure Switch Testing
Pressure Switch Replacement
TTW SERVICE PROCEDURE IV Blower Testing and Replacement
115 volt potential exposure. Use caution when
Blower Testing
Blower removal
Blower Installation
Blower Temperature Switch Testing.
Blower Temperature Switch Replacement.
Thermal Well Testing
Gas Control Testing
Determine Water Temperature Inside Tank
Gas Control & Thermal Well Removal From Water Heater
Gas Control Removal From Thermal Well
Gas Control Assembly to Thermal Well
Flammable Vapor Device Testing
TTW SERVICE PROCEDURE VIII Safety Circuit Voltage Trace
Safety Circuit Voltage Trace
NOTE: This procedure assumes a cool tank.
TTW SERVICE PROCEDURE IX 115 VAC Trace
115 VAC Circuit Trace
Dip Tube Inspection and Replacement
Anode Inspection and Replacement
Remove blower to gain access to flue baffle
Inner Door Removal Procedure
Inner Door Gasket Replacement Procedure.
Installation of Inner Door With Gasket.
Page
ScreenLokFlame Arrestor Cleaning:
ScreenLokFlame Arrestor Cleaning
Page
Parts List