Bradford-White Corp MI30T*F Pull in this direction Temperature sensor Insertion stick

Page 27

TheBradford White

DEFENDER

Safety System®

SERVICE PROCEDURE RG-VI

Gas Control

Testing, Disassembly & Replacement (Honeywell)

GAS CONTROL DISASSEMBLY/REASSEMBLY

Step 12. Remove temperature sensor from insertion stick by pulling apart as illustrated below.

Pull in this direction

Temperature sensor

Insertion stick

Pull in this direction

Step 13. To reassemble Gas Control, follow the previous steps in reverse order. Once Gas Control is reassembled, burner assembly is reinstalled, and the gas supply line is reconnected, resume water supply to water heater. Be sure tank is full of water before relighting.

Step 14. To resume operation, follow the instructions located on the lighting instruction label or the lighting instructions located in the installation and operation manual.

27

27

 

 

2

 

 

 

 

 

 

Image 27
Contents Service Manual Bradford White Introduction White Rodgers/Robertshaw Gas Valve Troubleshooting Chart Honeywell Gas Control Troubleshooting Chart Honeywell Gas Control Troubleshooting Chart Defender Installation of Inner Door With Gasket Combustion chamber Closed Circuit Thermocouple Testing Robertshaw Control Closed Circuit Thermocouple Testing White Rodgers ControlThermocouple Replacement White Rodgers/Robertshaw Gas Valve Open Circuit Thermopile Testing Honeywell Gas Control PILOT/ELECTRODE Assembly Inspection Cleaning and Replacement Defender Piezo IGNITER, Electrode Testing and ReplacementLine Pressure Gas Valve Testing and Replacement White Rodgers/RobertshawThermocouple Testing Magnet Assembly Testing White Rodgers ControlMagnet Assembly Testing Robertshaw Control Combination THERMOSTAT/GAS Valve Replacement ECO Energy Cut Off TestingWrench Boss Position thermocouple, pilot tube and Piezo wire Honeywell Gas Control Testing, Disassembly, and Replacement Thermopile Testing Defender Temperature Sensor TestingSensor Resistance at Various Temperatures Determine Water Temperature Inside TankGAS Control DISASSEMBLY/REASSEMBLY Temperature sensor Wire routing clip Disconnect Use caution not to bend or damage valve body pins Pull in this direction Temperature sensor Insertion stick GAS Control Replacement Defender Combustion chamber Cast Iron Burner Adjustment Main Burner Inspection, Adjustment Cleaning and ReplacementPosition thermocouple/thermopile Pilot tube and Piezo wire Burner Cleaning Resettable Thermal Switch Continuity Testing Over Tighten Screws Resettable Thermal Switch ReplacementFeedline Nut ScreenLok Flame Arrestor CleaningDIP Tube Inspection and Replacement Anode Inspection and Replacement Generic Parts List Parts@bradfordwhite.com Techserv@bradfordwhite.com