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7

LEAKAGE CHECKPOINTS

INSTRUCTIONS:

USE THIS ILLUSTRATION AS A GUIDE WHEN CHECKING FOR SOURCES OF WATER LEAKAGE.

YOU OR YOUR DEALER MAY BE ABLE TO CORRECT WHAT APPEARS TO BE A PROBLEM.

Water leaks at the elements may be due to:

1.

Defective element which leaks at termi-
nals or thru flange.  Replace element*.

2.

Loose element/gasket leak:

(a) Screw-in type: tighten with 1 1/2"

socket wrench or Part No. 21163 or
23985 wrench.  If leak continues, re-
move element*, discard gasket and
clean thread areas.  Apply non-hard-
ening Permatex No. 2 to thread areas,
install new gasket and screw element
into fitting until it seats.  Tighten 1/2 to
3/4 turn with wrench.

(b) Flange type: tighten screws with

wrench.  If leak continues remove el-
ement* and discard gasket.  Clean
gasket seating areas and re-install el-
ement with new gasket.

NOTE: Part No. 40000-1 scale cleaning
replacement screws available where
threads have become rusted or damaged,
preventing tightening.

Where possible, remove or lift top cover
to examine threads of fittings installed into
tank for evidence of leakage.  Correct fit-
ting leaks as necessary.

Condensation and dripping may
appear on pipes when cold wa-
ter temperature is low.  Pipe fit-
ting may be leaking.

Water on the side of the tank may be
condensation due to the panel or in-
sulation not being in place.

Drain valve leakage could be from the
valve itself.  Either correct the problem
or replace the valve.*  To check for
leakage where threaded portion enters
tank, insert Q-tip or similar absorbent
material between jacket opening and
valve to swab spud area.  Remove
valve* if leak is indicated and repair
with pipe joint compound.

     * Contact your dealer as it is necessary

to shut off electricity and drain tank to
perform procedure.

To Open Drain

Anode Rod

Temperature & Pressure

Relief Valve

Cover and Insulation

shown removed

to reveal tank top

To Open Drain

Relief valve operation and leakage may
be due to water expansion during heat-
ing cycle or foreign material on seat of
valve.  If the valve is not piped to an
open drain the released water could be
mistaken for a leaking heater.  To check
where threaded portion enters tank,
insert Q-tip or similar absorbent mate-
rial between jacket opening and valve
to swab spud area.  Remove valve* if
leak is indicated and repair with pipe
joint compound.

All water which appears at the heater bot-
tom or on the surrounding floor may be
caused by condensation, loose connections
or relief valve operation and leakage.  Do
not replace the heater until a full inspection
of all potential leak points is made and cor-
rective steps taken to stop the leak.  Leak-
age from other appliances, water lines or
ground seepage should also be suspected
until proven otherwise.

Summary of Contents for ELECTRIC WATER HEATER

Page 1: ...nstructions can result in fire asphyxiation serious personal injury or death Do not cover the temperature pressure relief T P valve Do not cover the instruction manual Keep it on the side of the water heater or nearby for future reference Do obtain new warning and instruction labels from A O Smith for placement on the blanket directly over the existing labels EXTENDED NON USE PERIODS WARNING Hydro...

Page 2: ...2 UPRIGHTS LOWBOYS COMPACTS TABLE TOPS FIGURE 1 GET TO KNOW YOUR WATER HEATER INSTALL VACUUM RELIEF IN COLD WATER INLET LINE AS REQUIRED BY LOCAL CODES ...

Page 3: ...ge 2 for typical installation Make sure a suitable pipe thread sealant is used to prevent leakage TEMPERATURE AND PRESSURE RELIEF VALVE A NEW TEMPERATURE AND PRESSURE RELIEF VALVE COMPLYING WITH THE STANDARD FOR RELIEF VALVES FOR HOT WATER SUPPLY SYSTEMS ANSI Z21 22 MUST BE INSTALLED IN THE HEATER IN THE MARKED OPENING PROVIDED THE VALVE MUST BE OF A SIZE INPUT RATING THAT WILL BE ADEQUATE FOR YOU...

Page 4: ...4 WIRING DIAGRAMS DANGER TURN OFF THE HEATER ELECTRICAL SUPPLY BEFORE SERVICING ANY ELECTRICAL COMPONENTS FIGURE 2 ...

Page 5: ... degrees of angular rotation and the corresponding change in temperature Thus rotating the temperature adjustment indicator 30 angular degrees will result in a 10 degree Fahrenheit change in water temperature TEMPERATURE ADJUSTMENT To change the temperature setting DANGER 1 Turn off the heater electrical supply Do not attempt to adjust thermostat with power on 2 Remove the thermostat access panels...

Page 6: ...od must be maintained to keep the tank in operating condition Failure to inspect and or replace the anode rod will result in voiding the warranty Anode deterioration depends on water conductivity not necessarily water condition It may be necessary to have the anode rod inspected a few times during the first year to see what effect the water has had A corroded or pitted anode rod in the first year ...

Page 7: ...ation due to the panel or in sulation not being in place Drain valve leakage could be from the valve itself Either correct the problem or replace the valve To check for leakage where threaded portion enters tank insert Q tip or similar absorbent material between jacket opening and valve to swab spud area Remove valve if leak is indicated and repair with pipe joint compound Contact your dealer as i...

Page 8: ... or any part thereof including freezing fire floods or lightning any misuse abuse or alteration of it any operation of it in a modified form or any attempt to repair tank leaks or parts will void this warranty SERVICE AND LABOR RESPONSIBILITY UNDER THIS LIMITED WARRANTY THE WARRANTOR WILL PROVIDE ONLY A REPLACEMENT WATER HEATER OR PART THEREOF THE OWNER IS RESPONSIBLE FOR ALL OTHER COSTS Such cost...

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