Smoke/Odor; Operational Conditions; Smelly Odor; "Air" In Hot Water Faucets - Kenmore 153.338071 Owner's Manual

,, Anew water h eater isfilled withcold water forthefirst t ime.
,, Burning gas produces water vapor in water heaters,
particuIarly high efficiency models where flue temperatures
are lower.
,, Large amounts of hot water are used in a short time and the
refill water in the tank is very cold.
Moisture from the products of combustion condense on the
cooler tank surfaces and form drops of water which may fall
onto the burner or other hot surfaces to produce a "sizzling" or
"frying" noise.
Excessive condensation can cause pilot outage due to water
running down the flue tube onto the main burner and putting
out the pilot.
Because of the suddenness and amount of water,
condensation water may be diagnosed as a "tank leak". After
the water in the tank warms up (about 1-2 hours), the condition
should disappear.
Do not assume the water heater is leaking until there has
been enough time for the water in the tank to warm up.
An undersized water heater will cause more condensation.
The water heater must be sized properly to meet the family's
demands for hot water including dishwashers, washing
machines and shower heads.
Excessive condensation may be noticed during the winter and
early spring months when incoming water temperatures are at
their lowest.
Good venting is essential for a gas fired water heater to operate
properly as well as to carry away products of combustion and
water vapor.
Smoke Odor
it is not uncommon to experience a small amount of smoke
and odor during the initial start-up. This is due to burning off of
oil from metal parts, and will disappear in a short while.
Operationa_ Conditions
Smetty Odor
In each 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:
,, a concentration of sulfate in the supply water.
,, little or no dissolved oxygen in the water.
,, a suIfate reducing bacteria within the water heater. (This
harmless bacteria is non-toxic to humans.)
,, an excess of active hydrogen in the tank. This is caused by
the corrosion protective action of the anode.
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 chIorinating the water heater tank and alI
hot water lines. Contact Sears Service for further information
concerning an Anode Replacement and this Chlorination
Treatment.
if the smelly water persists after the anode replacement and
chlorination treatment, we can only suggest that chlorination
or aeration of the water supply be considered to eliminate the
water problem.
Do not remove the anode meaving the tank unprotected. By
doing so, aH warranty on the water heater tank is voided.
"AIR" in Hot Water Faucets
},- ,,
Expmosion Hazard
, Flammable hydrogen
gases may be present.
Keep all ignition sources
away from faucet when
turning on hot water
HYDROGEN GAS: Hydrogen gas can be produced in a hot
water system that has not been used for a long period of time
(generally two weeks or more). Hydrogen gas is extremely
flammable and explosive. To prevent the possibility of injury
under these conditions, we recommend the hot water faucet,
located farthest away, be opened for several minutes before
any electricai appliances which are connected to the hot water
system are used (such as a dishwasher or washing machine).
if hydrogen gas is present, there wiII probably be an unusual
sound similar to air escaping through the pipe as the hot water
faucet is opened. There must be no smoking or open flame
near the faucet at the time it is open.
High Temperature Shut-Off System
(Auto Reset Type Energy Cut Off)
This water heater is equipped with an automatic reset type
high limit (energy cutoff) sensor. The high limit switch interrupts
the pilot and main burner gas flow when high water
temperatures are present. The high limit switch wiIi
automatically reset when the water temperature drops below
140°F (60°C).
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