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  • PROBLEM POSSIBLE CAUSE(S) CORRECTIVE ACTION
    NO HOT WATER
    • Upper thermostat
    • Elements
    • No power to heater
    • High Temperature Limit Switch open
    • Replace thermostat
    • Replace element
    • Turn on electrical switch. Check for blown fuses or tripped breaker.
    • Reset. Check for source of trouble and correct
    INSUFFICIENT HOT WATER
    • Thermostats
    • Elements
    • Thermostats set too low
    • Sediment or lime in tank
    • Heater too small for job
    • Replace thermostats
    • Replace elements
    • Set thermostats to desired temperature
    • Drain-Determine if water treatment is needed
    • See Sizing Guides
    SLOW HOT WATER RECOVERY Elements Replace elements
    DRIP FROM RELIEF VALVE Excessive water pressure Use Pressure Reducing Valve and Pressure Relief Valve
    THERMOSTAT FAILS TO SHUT OFF Thermostats Replace thermostats
    WATER ODOR Sulfides in the water Replace aluminum anode with KA90 anode
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