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31
Care and cleaning of the water heater
Draining the Water Heater
!
CAUTION: Shut off gas to the water
heater gas control (thermostat) at the
manual shut-off valve before draining
water.
!
DANGER: Before manually operating
the temperature and pressure relief
valve, make certain no one will be
exposed to the hot water released by the
valve. The water drained from the tank
may be hot enough to present a scald
hazard and should be directed to a
suitable drain to prevent injury or
damage.
Before turning off the cold water supply
to the water heater, open a hot water
faucet allowing sufficient cold water
into the tank to prevent the risk of a
scald injury while draining the water
heater. Once the water in the tank is
no longer hot, turn off the cold water
supply to the water heater. Open a hot
water faucet or lift the handle on the
relief valve to admit air to the tank.
Attach a garden hose to the drain valve on
the water heater and direct the stream of
water to a drain. Open the drain valve.
Routine Preventative Maintenance
Properly maintained, your water heater
will provide years of dependable trouble-
free service.
It is recommended that a periodic
inspection of the gas control (thermostat),
burner, relief valve, internal flue-way and
venting system should be made by service
personnel qualified in gas appliance repair.
It is suggested that a routine preventative
maintenance program be established and
followed by the user.
Inspect the combustion air-inlet pipe and
vent pipes. Make certain that all joints are
secure and that vent pipe supports are all in
place. Check the outdoor vent and air inlet
pipes to see that it is free of obstructions,
and that there is no damage nearby caused
by condensate.
At least once a year, lift and release the
lever handle on the temperature pressure
relief valve, located near the top of the
water heater, to make certain the valve
operates freely. Allow several gallons to
flush through the discharge line to an open
drain.
NOTICE: If the temperature and
pressure relief valve on the water heater
discharges periodically, this may be due
to thermal expansion in a closed water
system. Contact the water supplier or
your plumbing contractor on how to
correct this. DO NOT plug the relief
valve outlet.
A water heater’s tank can act as a settling
basin for solids suspended in the water.
It is therefore not uncommon for hard
water deposits to accumulate in the bottom
of the tank. If allowed to accumulate,
these solids can cover the gas control
(thermostat) sensors, causing the sensors to
operate erratically. Because accumulated
solids can prevent the gas control
(thermostat) sensors from accurately
reading the water temperature, the water
at the fixture can be hotter than the gas
control (thermostat) setting. It is suggested
that a few quarts of water be drained from
the water heater’s tank every month to
clean the tank of these deposits.
Rapid closing of faucets or solenoid valves
in automatic water using appliances can
cause a banging noise heard in a water
pipe. Strategically located risers in the
water pipe system or water hammer
arresting devices can be used to minimize
the problem.
The anode rod should be removed from the
water heater’s tank annually for inspection
and replaced when more than 6” of core
wire is exposed at either end of the rod.
Make sure the cold water supply is turned
off before removing anode rod.
This water heater incorporates a
combustion shut off devices that shuts
the operation of the water heater down if
undesirable combustion conditions occur,
such as the presence of flammable vapors
or blockage of the condensate, combustion
air inlet and venting systems. Contact
a Qualified Service Technician if this
occurs.
DANGER: Before
manually operating the
relief valve, make certain
no one will be exposed to
the danger of the hot water
released by the valve. The
water may be hot enough to
create a scald hazard. The
water should be released
into a suitable drain to
prevent injury or property
damage.
DANGER: Failure to
perform the recommended
Routine Preventative
Maintenance can harm the
proper operation of this
water heater, which can
cause carbon monoxide
dangers, excessive hot
water temperatures and
other potentially hazardous
conditions.
!
DANGER: Hotter water
increases the potential for
Hot Water Scalds.
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