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15
Maintenance
CARE AND CLEANING
DO NOT
• Do not disassemble the motor housing. This motor has NO repairable internal parts, and disassembly may
cause leakage or dangerous electrical wiring issues.
Do not lift up the pump by the power cord.
IF THE PUMP IS NOT RUNNING PROPERLY
•
Remove the impeller cover screws.
•
Remove the impeller cover.
• Inspect the gasket and impeller. If the impeller wears out, replace the impeller. The brushes could run 200
hours. If the brushes have been worn off, replace the brush. The brush must enter the square hole. Match
the brush curve to the armature curve.
NOTE: Do not disassemble the motor housing of the pump. This motor has NO repairable internal
parts, and disassembling may cause a dangerous electrical wiring issue.
ANODE ROD INSPECTION
The anode rod is used to protect the tank from corrosion. Most hot water tanks are equipped with an anode
rod. The submerged rod sacrifices itself to protect the tank. Instead of corroding the tank, water ions attack and
eat away the anode rod. This does not affect the water’s taste or color. The rod must be maintained to keep the
tank in operating condition.
NOTE: Artificially softened water is more corrosive because the process substitutes sodium ions for
magnesium and calcium ions. The use of a water softener may decrease the life of the water heater
tank.
Anode deterioration depends on water conductivity, not necessarily water condition. A corroded or pitted anode
rod indicates high water conductivity and should be checked and/or replaced more often than an anode rod
can extend the life of your water heater. Inspection should be conducted by a qualified technician, and at a
minimum should be checked every three years. The anode rod in this unit is attached to the element flange.
For removal instructions, see “ELEMENT CLEANING/REPLACEMENT.”
Typical (but not all) signs of a depleted anode rod are as follows:
1.
The majority of the rods diameter is less than 3/8”.
2.
Significant sections of the support wire (approximately 1/3 or more if the anode rod’s length) are visible.
If the anode rod shows signs of either or both it should be replaced.
NOTE: Whether re-installing or replacing the anode rod, check for any leaks and immediately correct if
found.
TEMPERATURE-PRESSURE RELIEF VALVE OPERATION
The temperature-pressure relief valve must be manually operated at least once a year. When checking the