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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.
STRANGE SOUNDS
Possible noises due to expansion and contraction of
some metal parts during periods of heat-up and cool-
down do not necessarily represent harmful or dangerous
conditions.
Condensation causes sizzling and popping within the
burner area during heating and cooling periods and
should be considered normal. See
25).
OPERATIONAL CONDITIONS
SMELLY WATER
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" in the hot water. 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. A concentration of sulfate in the supply water.
B. Little or no dissolved oxygen in the water.
C. A sulfate reducing bacteria which has accumulated within
the water heater (this harmless bacteria is nontoxic to
humans).
D. 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 chlorinating the water
heater tank and all hot water lines.
Contact the local water heater supplier or service agency
for further information concerning an Anode Replacement
Kit 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.
(page
Condensation
26
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
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 electrical
appliances which are connected to the hot water system
are used (such as a dishwasher or washing machine).
If hydrogen gas is present, there will 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.
TEMPERATURE-EXCEEDED SAFETY SHUT-OFF SYSTEM
This water heater is equipped with an automatic gas
Shut-off system. This system works when high water
temperatures are present. The high temperature Shut-off
is built into the gas control valve. It is non-resettable. If
the high temperature Shut-off activates, the gas control
valve must be replaced. Contact your gas supplier or
service agency. Turn "OFF" the entire gas supply to the
water heater.
See the 4-flash error code in
troubleshooting.
(page 36) for
Table 7
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