Bradford White RE250LN6-1NCWW Installation/Operation Instruction Manual page 17

Maintenance continued-
3. At least once a year, check the combination temperature and
pressure relief valve to ensure that the valve has not become
encrusted with lime. Lift the lever at the top of the temperature-
pressure relief valve several times until the valve seats properly
without leaking and operates freely.
When lifting lever of temperature-pressure relief valve, hot water will
be released under pressure. Be certain that any released water
does not result in bodily injury or property damage.
4. If the combination temperature and pressure relief valve on the
appliance discharges periodically, this may be due to thermal
expansion in a closed water supply system. Contact the water
supplier or local plumbing inspector on how to correct this situation.
Do not plug the combination temperature and pressure relief valve
outlet for any reason.
5. Monthly, drain off a gallon of water from the water heater to
remove silt and sediment.
6. A combination sacrificial anode rod/hot water outlet nipple has
been installed to extend tank life. The anode rod should be
inspected periodically (every 2 years) and replaced when necessary
to prolong tank life. Water conditions in your area will influence the
time interval for inspection and replacement of the anode rod.
Contact the plumbing professional who installed the water heater or
the manufacturer listed on the rating plate for anode replacement
information. The use of a water softener may increase the speed of
anode consumption. More frequent inspection of the anode is
needed when using softened (or phosphate treated) water.
FOR YOUR SAFETY, DO NOT ATTEMPT TO REPAIR
THERMOSTAT(S), HEATING ELEMENTS, OR ELECTRICAL
WIRING. REFER SUCH REPAIRS TO A QUALIFIED SERVICE
TECHNICIAN.
WARNING
WARNING
THIS WATER MAY BE HOT.
CAUTION
17