PROBLEM |
| POSSIBLE CAUSE(S) |
| CORRECTION | |
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| 1. | Thermostat set too low | 1. | Turn temperature dial to desired setting | |
| 2. | Sediment or lime in tank | 2. | ||
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| 3. | Water heater too small | 3. | Install adequate size heater | |
| 4. | Wrong piping connections | 4. | Correct | |
INSUFFICIENT HOT WATER |
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| 5. | Repair faucets | |
| 5. | Leaking faucets | 6. | Advise customer | |
| 6. | Wasted hot water | 7. | Insulate piping | |
| 7. | Long runs of exposed piping | 8. | Insulate piping | |
| 8. | Hot water piping in outside wall | 9. | Check with gas utility company | |
| 9. | Low gas pressure |
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| 1. | Insufficient secondary air | 1. | Provide ventilation to water heater. Check | |
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| flue way, flue baffle and burner | |
| 2. | Flue clogged | 2. | Clean flue, locate source and correct | |
| 3. | Low gas pressure | 3. | Check with gas utility company | |
SLOW HOT WATER RECOVERY | 4. | Improper calibration | 4. | Replace gas control/thermostat | |
5. | Gas control/thermostat set too low | 5. | Turn temperature dial to desired setting | ||
| 6. | Water heater too small | 6. | Install adequate size heater | |
| 7. | Wrong piping connections | 7. | Correct | |
| 8. | Wasted hot water | 8. | Advise customer | |
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| 1. | Excessive water pressure | 1. | Use a pressure reducing valve and relief | |
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DRIP FROM RELIEF VALVE | 2. | Heater stacking | 2. | Lower the thermostat setting | |
| 3. | Closed water system | 3. | See “Closed System/Thermal Expansion” | |
| 4. | Temperature setting too high | 4. | Decrease the temperature setting | |
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THERMOSTAT FAILS TO SHUT | 1. | Defective gas control/thermostat | 1. | Replace gas control/thermostat | |
OFF | 2. | Improper calibration | 2. | Replace gas control/thermostat | |
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| 1. | Insufficient secondary air | 1. | Provide ventilation to water heater. Check | |
COMBUSTION ODOURS |
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| flue way, flue baffle, burner | |
2. | Flue clogged | 2. | Clean, locate source and correct | ||
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| 3. | Heater installed in a confined area | 3. | Provide fresh air ventilation | |
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| 1. | Insufficient secondary air | 1. | Provide ventilation to water heater. Check | |
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| flue way,flue baffle, burner | |
SMOKING AND CARBON FOR- | 2. | Low gas pressure | 2. | Check with gas utility company | |
3. | Flue clogged | 3. | Clean, locate source and correct | ||
MATION (SOOTING) | |||||
4. | Defective gas control/thermostat | 4. | Replace gas control/thermostat | ||
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| 5. | Heater installed in a confined area | 5. | Provide fresh air ventilation | |
| 6. | Burner flame | 6. | See “Burner Flame | |
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CONDENSATION | 1. | Temperature setting too low | 1. | Increase the temperature setting | |
2. | Water heater too small | 2. | Install adequate size heater | ||
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| 1. | Orifice too large | 1. | Replace with correct orifice | |
BURNER FLAME FLOATS AND | 2. | High gas pressure | 2. | Check with gas utility company | |
3. | Flue clogged | 3. | Clean flue and | ||
LIFTS OFF PORTS | |||||
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| 4. | Cold drafts | 4. | Locate source and correct | |
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BURNER FLAME TOO HIGH | 1. | Orifice too large | 1. | Replace with correct orifice | |
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| 1. | Defective gas control/thermostat | 1. | Replace gas control/thermostat | |
FLAME BURNS AT ORIFICE | 2. | Low gas pressure | 2. | Check with gas utility company | |
| 3 | Orifice not properly installed | 3 | Reinstall the orifice | |
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