Condensation
Whenever the water heater is fi lled with cold water, some condensate will form while the burner is on. A water heater may appear to be leaking when in fact the water is condensation. This usually happens when:
•A new water heater is fi lled with cold water for the fi rst time.
•Burning gas produces water vapor In water heaters, particularly high effi ciency models where fl ue temperatures are lower.
•Large amounts of hot water are used in a short time and the refi ll 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 fl ue 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
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 fi red 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
Operational Conditions
Smelly 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 sulfi de 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 sulfate reducing bacteria within the water heater. (This harmless bacteria is
•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 Sears Service for further information concerning an Anode Replacement Kit #9001453 and this Chlorination Treatment. Anode replacement and chlorination of the tank are not covered by the water heater’s limited warranty.
If the smelly water persists after the anode replacement and chlorination treatment, it may be necessary to chlorinate or aerate your water supply to eliminate the 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
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.
High Temperature Shut Off System
This water heater is equipped with an automatic gas shutoff system. This system works when high water temperatures are present. Turn “OFF” the entire gas supply to the water heater. The high temperature shutoff is built into the gas control valve. It is
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