Service Procedure X: Anode Inspection And Replacement - Bradford White UCG100H3993N Service Manual

Anode Replacement Procedure
Step 1. Position main power switch to "OFF"
Step 2. Disconnect (unplug) water heater from 120
volt power source.
Step 3. Turn off water supply and drain water heater.
Step 4. Locate (see photo below) and remove anode rods from heater (1-1/16 hex socket).
Step 5. Visually inspect anode rod. Anode rod should show signs of depletion, this is normal. If
the depletion is ½ of the original diameter (approximately ¾" 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, apply thread sealing tape or other
thread compound to threads of anode and reinstall into heater. Restore water supply
and check for and repair any leaks found.
Step 7. Restore 120 volts to water heater and verify proper heater operation following the
instructions on the lighting instruction label or the lighting instruction located in the
installation and operating instruction manual.
Top of water heater.
Anodes located under plastic
covers by inlet and outlet
water connections.
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Service Procedure X:
Anode Inspection and Replacement
Heater components and stored water may be HOT when
performing the following steps in this procedure. Take
necessary precaution to prevent personal injury.
Cut access hole through insulation.
After removing insulation you will have
access to the anodes.
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WARNING