Service Manual

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SERVICE PROCEDURE RG-X
Diptube and Anode
Inspection and Replacement
ANODE INSPECTION AND REPLACEMENT
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 the water heater. Connect a hose to the drain spigot of the water
heater
and route to an open drain. Open a nearby hot water faucet to vent the heater for
draining.
Open the drain spigot of the water heater and allow the heater to drain to a point below
t
he outlet connection nipple.
Disconnect
the outlet nipple from the plumbing system.
W
ith an appropriate wrench, remove the outlet nipple/anode from the water heater. Use caution to
not
damage pipe threads.
Visua
lly inspect outlet nipple/anode. Outlet nipple/anode should show signs of depletion; this is
normal.
If depletion is 1/2 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.
Upon
completion of inspection or subsequent replacement, reinstall the outlet nipple/anode into
the
heater.
Ensure pipe dope is used on the nipple’s threads. Connect the nipple to the plumbing
system,
resume water supply, and refill the heater with water.
To
resume operation, follow the instructions located on the lighting instruction label or the lighting
in
structions located in the Installation and Operation Manual.
Step 3.
Step 4.
Step 5.
Step 6.
Step 7.
WARNING
Heater components and stored water may be HOT when performing the following
steps in this procedure. Take necessary precaution to prevent personal injury.
Resideo
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