Installation / Operation Instruction Manual

16
Maintenance continued-
The following maintenance should be performed by a qualified service
technician at the minimum periodic intervals suggested below. In some
installations, the maintenance interval may be more frequent depending on
the amount of use and the operating conditions of the water heater. Regular
inspection and maintenance of the water heater will help to insure safe and
reliable operation.
1. Annually, check the operation of the thermostat(s).
2. Bi-annually, check the seal around the heating elements for leaks. If there
is any sign of leaking, disconnect the power supply to the water heater and
contact the plumbing professional that installed this water heater or a
qualified service technician.
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.
WARNING
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 the water heater through the drain valve until the water
runs clear to remove silt and sediment.
WARNING
THIS WATER MAY BE HOT.
6. A sacrificial anode rod 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. M
ore frequent inspection of the anode is needed when
using softened (or phosphate treated) water.
7. If this water heater is equipped with fuses, before removing any fuse,
disconnect the all power to the water heater. Open the control box door
and replace fuses according to the size indicated on the wiring diagram
affixed to the inside of the control box door.