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FIGURE 14
SCREW-IN
ELEMENT
@
THERMOSTAT
SPUD_
GASKET /
,
Close the drain valve. Open the nearest hot water
faucet and allow the tank to fill completely with water.
To purge the lines of any excess air and sediment,
keep the hot water faucet open for 3 minutes after a
constant flow of water is obtained.
8. Check for leaks around the element(s).
9. Connect the electric wires to the heater element.
Make sure the wires are secure. Replace the plastic
thermostat cover making sure the attachment points
are engaged on the thermostat.
10. Replace the access cover(s).
11. Make certain the tank is filled with water. Applying
electric current to heater elements not submerged in
water will destroy them.
12. Restore the electric power supply to the water heater.
TROUBLESHOOTING CHART
PROBLEM
NO HOT WATER
INSUFFICIENT HOT WATER
HIGH OPERATION COSTS
SLOW HOT WATER
REC:QVERY
DRIP FROM RELIEF VALVE
THERMOSTAT FAILS TO
SHUT OFF
WATER ODOR
1,
2.
3.
1,
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
1,
2.
3.
4.
5.
6.
7.
8.
9.
POSSIBLE CAUSE(S)
No power to heater 1.
High Temperature Limit Switch open
Defective upper thermostat 2.
3.
Defective thermostats 1.
Defective lower element 2.
Improper calibration 3.
Thermostats set too low 4.
Sediment or lime in tank 5.
Heater too small for job 6.
Wrong piping connections 7.
Leaking faucets 8.
Wasted hot water 9.
Long runs of exposed pipe 10.
Hot water piping on outside wall 11
Improper Calibration 1.
Thermostats set too high 2.
Sediment or lime in tank 3.
Heater too small for job 4.
Wrong piping connections 5.
Leaking faucets 6.
Wasted hot water 7.
Long runs of exposed piping 8.
Hot water piping in exposed wall 9.
1. Defective upper element
2. Defective lower element
1. Excessive water pressure
2. Closed system
1. Defective thermostats
2. Improper calibration
1. Sulfides in the water
1,
2.
1.
2.
1.
2.
1.
CORRECTIVE ACTION
Turn on electrical switch• Check for blown fuses or
tripped breaker
Reset• Check for source of trouble and correct
Replace thermostat
Replace thermostats
Replace element
Replace thermostats
Set thermostats to desired temperature
Drain• Determine if water treatment is needed
Install adequate water heater
Correct piping
Repair faucets
Advise customer
Insulate piping
• Insulate piping
Replace thermostats
Set thermostat to desired setting
Drain• Flush-Provide water treatment if needed
Install adequate heater
Correct piping
Repair faucets
Advise customer
Insulate piping
Insulate piping
Replace element
Replace element
Use Pressure Reducing Valve and Pressure Relief
Valve
See page 7, "Closed System"
Replace thermostats
Replace thermostats
See page 11, "Water Odor"
13
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