TROUBLESHOOTING CHART (CONTINUED)
PROBLEM |
| POSSIBLE CAUSE(S) |
| CORRECTIVE ACTION |
THERMOSTAT FAILS TO | 1. | Thermostat not functioning properly | 1. | Replace thermostat |
2. | Improper calibration | 2. | Replace thermostat | |
COMBUSTION ODORS | 1. | Insufficient secondary air | 1. | Provide ventilation to water heater. Check flue |
| 2. | Water heater flue or vent system | 2. | way, flue baffle, and burner |
| Clean, locate source and correct | |||
| 3. | blocked | 3. | Provide fresh air ventilation |
| Heater installed in a confined area | |||
SMOKING AND CARBON | 1. | Insufficient secondary air | 1. | Provide ventilation to water heater. Check flue |
FORMATION (SOOTING) | 2. | Low gas pressure | 2. | way, flue baffle, burner |
| Check with gas utility company | |||
| 3. | Water heater flue or vent system | 3. | Clean, locate source and correct |
| 4. | blocked | 4. | Replace thermostat |
| Thermostat not functioning properly | |||
| 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. Refer to the |
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| “Condensation” |
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| Troubleshooting Guide. |
BURNER FLAME FLOATS | 1. | Orifice too large | 1. | Replace with correct orifice |
AND LIFTS OFF PORTS | 2. | High gas pressure | 2. | Check with gas utility company |
| 3. | Water heater flue or vent system | 3. | Clean flue and |
| 4. | blocked | 4. | Locate source and correct |
| Cold drafts | |||
BURNER FLAME TOO HIGH | 1. | Orifice too large | 1. | Replace with correct orifice |
FLAME BURNS AT ORIFICE | 1. | Thermostat not functioning properly | 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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