Model GL indirect-fired water heaters — Product Manual
Troubleshooting
(continued)
Rapid decay of magnesium anode
1 Anodes last less than two years
The purpose of the is to reduce the damaging effects of aggressive water on
the water heater. Aggressive water will cause the anode to erode.
The anode must be inspected at least annually to determine whether a new anode should be
installed.
Severe or rapid deterioration of the anode indicates very aggressive water. If this occurs, have the
water tested to verify whether it is within the limits given under “Operating restrictions,” page 3.
Failure to inspect the anode regularly and replace if necessary could result in damage to the water
heater, causing possible severe personal injury, death or substantial property damage.
Part number GL-E224-ADOC 0413
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