Bradford-White Corp TTW ECO-DEFENDER UTW450S60FR*N ユーザーズマニュアル

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Step 8. 

To resume operation, follow the instructions located on the water heater 

lighting instruction label.  Or, use the lighting instructions located 
in the water heater installation and operating manual.

Step 1. 

Move the gas control power switch to the “OFF” po-

sition.

Step 2. 

Unplug the water heater from the wall outlet. 

Step 3. 

Remove the outer door. 

Step 4. 

Remove (4) 1/4” hex drive screws from the right side 

inner door. 

Step 5. 

Remove (3) 1/4” drive screws from the left side 

burner door. 

Gas control power 

switch 

Blower (water

heater) power cord 

Connectors attached to 

resettable thermal switch 

Outer door 

(3) 1/4” hex 
drive screws 

(4) 1/4” hex drive 

screws

Right side 

inner door 

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