Figure 13
Figure 14
Thermostat
Holding
Bracket
Element
Screws
ElementSpud
Gasket
5.Clean the area where the gasket(s) fits to the tank. If you are replacing the bottom element, remove the accumulated sediment on the bottom of the tank.
6.Make sure the replacement element(s) has the correct voltage and wattage rating by matching it to the rating plate on the water heater. Position the new gasket(s) on the element and insert it into the water heater tank (Figure 14). Tighten the element by turning it clockwise until secure.
7.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.Reconnect the electrical wires to the element and securely tighten the screws. 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.Reconnect electrical power to the water heater.
TROUBLESHOOTING CHART
PROBLEM |
| POSSIBLE CAUSE(S) |
| CORRECTIVE ACTION |
NO HOT WATER | 1. | No power to heater | 1. | Turn on electrical switch. Check for blown fuses |
| 2. | High Temperature Limit Switch open | 2. | or tripped breaker |
| Reset. Check for source of trouble and correct | |||
| 3. | 3. | Replace thermostat | |
INSUFFICIENT HOT WATER | 1. | 1. | Replace thermostats | |
| 2. | 2. | Replace element | |
| 3. | Improper calibration | 3. | Replace thermostats |
| 4. | Thermostats set too low | 4. | Set thermostats to desired temperature |
| 5. | Sediment or lime in tank | 5. | Drain. Determine if water treatment is needed |
| 6. | Heater too small for job | 6. | Install adequate water heater |
| 7. | Wrong piping connections | 7. | Correct piping |
| 8. | Leaking faucets | 8. | Repair faucets |
| 9. | Wasted hot water | 9. | Advise customer |
| 10. | Long runs of exposed pipe | 10. | Insulate piping |
| 11. | Hot water piping on outside wall | 11. | Insulate piping |
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HIGH OPERATION COSTS | 1. | Improper Calibration | 1. | Replace thermostats |
| 2. | Thermostats set too high | 2. | Set thermostat to desired setting |
| 3. | Sediment or lime in tank | 3. | Drain. |
| 4. | Heater too small for job | 4. | Install adequate heater |
| 5. | Wrong piping connections | 5. | Correct piping |
| 6. | Leaking faucets | 6. | Repair faucets |
| 7. | Wasted hot water | 7. | Advise customer |
| 8. | Long runs of exposed piping | 8. | Insulate piping |
| 9. | Hot water piping in exposed wall | 9. | Insulate piping |
SLOW HOT WATER | 1. | 1. | Replace element | |
RECOVERY | 2. | 2. | Replace element | |
DRIP FROM RELIEF VALVE | 1. | Excessive water pressure | 1. | Use Pressure Reducing Valve and Pressure |
| 2. | Closed system | 2. | Relief Valve |
| See “Closed System/Thermal Expansion” section | |||
THERMOSTAT DOES NOT | 1. | 1. | Replace thermostats | |
SHUT OFF | 2. | Improper calibration | 2. | Replace thermostats |
WATER ODOR | 1. | Sulfides in the water | 1. | See “Anode Rod/Water Odor” section |
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