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Troubleshooting Guide (cont'd)
Operational Conditions
HOT
COLD WATER HEATER (3)
COLD WATER
PRESSURE
INLET FITTING REDUCING
VALVEWITH
B_PASS
(i) 1
EXPANSION
TANK
SMELLY WATER
In each glasslined water heater there is installed at least one
anode rod (see parts section) for corrosion protection of the
tank. Certain water conditions will cause a reaction between this
rod and the water. The most common complaint associated with
the anode rod is one of a rotten egg smell . This odor is derived
from hydrogen sulfide gas dissolved in the water. The smell is
the result of four factors which must all be present for the odor
to develop:
WATER
SHUTOFF
RECOMMENDED INSTALLATION
(VERTICAL MOUNTING)
a. a concentration of sulfate in the supply water.
b. little or no dissolved oxygen in the water.
c. a sulfate reducing bacteria within the water heater. (This
harmless bacteria is non-toxic to humans.)
d. an excess of active hydrogen in the tank. This is caused by
the corrosion protective action of the anode.
WATER HEATER
COLD WATER
INLET FITTING
HOT
(1)
EXPANSION
FLOOR, CEIUNG
JoisT,ETC.
STRAPPING
0)
PRESSURE
REDUCING
VALVEWITH
BY-PASS
INLET COLD
WATER
SHUTOFF
Smelly water may be eliminated or reduced in some water heater
models by replacing the anode(s) with one of less active material,
and then chlorinating the water heater tank and all hot water
lines. Contact Sears Service for further information concerning
an Anode Replacement Kit #9001453 and this Chlorination
Treatment.
lfthe smelly water persists afterthe anode replacement and chlo-
rination treatment, we can only suggest that continuous chlori-
nation and filtering conditioning equipment be cor_sidered to
eliminate the water problem.
Do not remove the anode leaving the tank unprotected. By
doing so, all warranty on the water heater tank is voided.
"AIR" IN HOT WATER FAUCETS
(2}
pRESSUREGAUGE
ALTERNATERECOMMENDED
INSTALLATION
(HORIZONTAL MOUNTING)
STRANGE SOUNDS
Possible noises due to expansion and contraction of some metal
parts during periods of beat-up and cool-down do not represent
harmful ordangerous conditions.
AWARNING
HYDROGEN GAS: Hydrogengascan be producedina hot
water systemthat hasnot beenusedfor a longperiedoftime
(generallytwo weeksor more). Hydrogengasis ext_mely
flammableand explosive.To preventthe possibilityof injury
under these com_ior_ we recommend tbe hot wator faucet
be openedfor severalminutesat the kitchensinkbeforeany
electricalapplianceswhichare connectedto the hotw_r sys-
tem are used(suchas a dishwasheror washingmachine).If
hydrogengasis present, there will probablybe an unusual
soundsimilartoair escapingthroughthe pipeasthe hotwater
faucet isopened.There must be no smokingor openflame
nearthe faucetat the time Itisopen.
Condensation causes sizzling and popping with the burner area
during heating and coolin_ periods and should be considered
normal. See "Condensation section.
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