Before You Call For Service…
Problem | Possible Causes | What To Do | |
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Rumbling noise | Scale and sediment | Clean tank. | |
| in tank. |
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Relief valve | Pressure build up | This is an unacceptable condition and must be | |
producing popping | caused by thermal | corrected. Contact the water supplier or plumbing | |
noise or draining | expansion to a | contractor on how to correct this. Do not plug the | |
| closed system. | relief valve outlet. | |
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Not enough or | Water usage may have | Wait for the water heater to recover after an | |
no hot water | exceeded the capacity | abnormal demand. | |
| of the water heater. |
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| Low gas pressure. | Check gas supply pressure and manifold pressure. | |
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| The pilot burner may be out. | Check the pilot burner. If necessary, relight using the | |
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| instructions in the “Lighting The Water Heater” |
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| section of this manual. |
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| The gas control (thermostat) | See the “Water Temperature Setting” of The Water | |
| may be set too low. | Heater section of this manual. | |
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| Leaking or open hot | Make sure all faucets are closed. | |
| water faucets. |
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| Combustion Shutoff System | Contact a qualified service technician. | |
| tripped |
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Water is too hot | The gas control (thermostat) | ● See the “Water Temperature Setting” of The Water | |
| is set too high. | Heater section of this manual. | |
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| Gas Control (Thermostat) | ● Contact a qualified service technician to replace the | |
| Defective. | gas control (thermostat). | |
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Pilot Burner Lights, but | Combustion Shutoff System | ● Contact a qualified service technician. | |
Main Burner will not | tripped. |
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stay lit. |
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CAUTION: For your safety DO NOT attempt repair of gas piping, gas control (thermostat), burners, vent connectors or other safety devices. Refer repairs to qualified service personnel.
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