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Step 1. Turn off water supply to water heater. Rotate knob of combination thermostat/gas valve to “OFF” position.
Step 2. Turn off cold water supply to heater. Connect hose to drain valve of water heater and route to an open drain.
Open a nearby hot water faucet to vent heater for draining. Open drain of water heater and allow
heater to drain to a point below the outlet connection nipple.
Step 3. Disconnect outlet nipple from plumbing system.
Step 4 With an appropriate wrench, remove outlet nipple/anode from the water heater. Use caution not to damage
pipe threads.
Step 5. Visually Inspect outlet nipple/anode. Outlet nipple/anode should show signs of depletion, this is normal.
If depletion is ½ of the original anode diameter (approximately 5/8” diameter), replacement is recommended.
If any of the steel core of the anode is exposed, replacement is recommended.
Step 6. Upon completion of inspection or subsequent replacement, reinstall outlet nipple/anode into heater. Connect
nipple to plumbing system, resume water supply and refill heater with water.
Step 7. To resume operation, follow the instructions located on the lighting instruction label or the lighting
instructions located in the installation and operation manual.
ANODE INSPECTION AND REPLACEMENT
WARNING
Heater components and stored water may be HOT when performing the following steps in
this procedure. Take necessary precaution to prevent personal injury.
For White Rodgers Control,
depress knob slightly and rotate
clockwise to the “OFF” position.
For Robertshaw Control, rotate
knob clockwise to the “OFF”
position.
For Honeywell Control, rotate
knob counter-clockwise to the
“OFF” position.
SERVICE PROCEDURE RG-X
Dip Tube and Anode
Inspection and Replacement
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valve
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