Bradford-White Corp M4503 Water Heater User Manual


 
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RESETTABLE THERMAL SWITCH REPLACEMENT
Step 1. Rotate knob of combination thermostat gas valve to the off position.
Step 2. Remove outer jacket door.
Step 3. Disconnect wire leads from resettable thermal switch.
Step 4. Remove resettable thermal switch from inner door (Phillips screw driver)
Step 5. Place new resettable thermal switch in place. Be sure contact surface of resettable thermal switch and inner
door are free of any debris. Secure resettable thermal switch into place using screws from step 4. DO NOT
OVER TIGHTEN SCREWS.
Step 6. Reconnect wire leads from combination thermostat/gas valve to resettable thermal switch.
Note: Wire termination are interchangeable with either resettable thermal switch connection.
Step 7. Replace outer jacket door
Step 8. To resume operation follow the instructions located on the lighting instruction label or the lighting instruction
located in the installation and operation manual.
For White Rodgers Control,
depress knob slightly and rotate
clockwise to the “OFF” position.
For Robertshaw Control, rotate
knob clockwise to the “OFF”
position.
SERVICE PROCEDURE RG-VII
Resetting Thermal Switch
Testing and Replacement