TROUBLESHOOTING CHART (continued)
PROBLEM |
| POSSIBLE CAUSE(S) |
| CORRECTIVE ACTION |
SLOW HOT WATER RECOVERY | 1. | Insufficient secondary air | 1. | Provide ventilation to water heater. Check flue way, |
| 2. | Flue clogged | 2. | flue baffle, and burner |
| Clean flue, locate source and correct | |||
| 3. | Low gas pressure | 3. | Check with gas utility company |
| 4. | Improper calibration | 4. | Replace thermostat |
| 5. | Thermostat set too low | 5. | Turn temperature dial to desired setting |
| 6. | Water heater too small | 6. | Install adequate heater |
| 7. | Wrong piping connections | 7. | Correct |
| 8. | Wasted hot water | 8. | Advise customer |
DRIP FROM RELIEF VALVE | 1. | Excessive water pressure | 1. | Use a pressure reducing valve and relief valve |
| 2. | Heater stacking | 2. | Lower the thermostat setting |
| 3. | Closed water system | 3. | See “Closed System/Thermal Expansion” |
THERMOSTAT FAILS TO SHUT | 1. | Defective thermostat | 1. | Replace thermostat |
OFF | 2. | Improper calibration | 2. | Replace thermostat |
COMBUSTION ODORS | 1. | Insufficient secondary air | 1. | Provide ventilation to water heater. Check flue |
| 2. | Flue clogged | 2. | way, flue baffle, and burner |
| Clean, locate source and correct | |||
| 3. | Heater installed in a confined area | 3. | Provide fresh air ventilation |
SMOKING AND CARBON | 1. | Insufficient secondary air | 1. | Provide ventilation to water heater. Check flue way, |
FORMATION (SOOTING) | 2. | Low gas pressure | 2. | flue baffle, burner |
| Check with gas utility company | |||
| 3. | Flue clogged | 3. | Clean, locate source and correct |
| 4. | Defective thermostat | 4. | Replace thermostat |
| 5. | Heater installed in a confined area | 5. | Provide fresh air ventilation |
| 6. | Burner flame | 6. | See “Burner Flame |
CONDENSATION | 1. | Temperature setting too low | 1. | Increase the temperature setting |
BURNER FLAME FLOATS AND | 1. | Orifice too large | 1. | Replace with correct orifice |
LIFTS OFF PORTS | 2. | High gas pressure | 2. | Check with gas utility company |
| 3. | Flue clogged | 3. | Clean flue and |
| 4. | Cold drafts | 4. | Locate source and correct |
BURNER FLAME TOO HIGH | 1. | Orifice too large | 1. | Replace with correct orifice |
FLAME BURNS AT ORIFICE | 1. | Defective thermostat | 1. | Replace thermostat |
| 2. | Low gas pressure | 2. | Check with gas utility company |
PILOT FLAME | 1. | Pilot line or orifice clogged | 1. | Clean, locate source and correct |
TOO SMALL | 2. | Low gas pressure | 2. | Check with gas utility company |
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