Before You Call For Service…
Troubleshooting Tips
Save time and money! Review the chart on this page first and you may not need to call for service.
Problem | Possible Causes | What To Do |
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Rumbling noise | Water conditions in your |
| home caused a build up of |
| scale or mineral deposits |
| on the heating elements. |
●Remove and clean the heating elements.
Relief valve | Pressure build up caused | ● This is an unacceptable condition and must be |
producing popping | by thermal expansion | corrected. Contact the water supplier or plumbing |
noise or draining | in a closed system. | contractor on how to correct this. Do not plug the |
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| relief valve outlet. |
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Rattling noise | Internal heat trap | ● This is normal for heat trap fittings when in operation |
during periods | fittings in operation. | and does not indicate a need for service. |
of water usage |
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Not enough or | Water usage may have | ● Wait for the water heater to recover after an abnormal |
no hot water | exceeded the capacity | demand. |
| of the water heater. |
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A fuse is blown or a circuit breaker tripped.
●Replace fuse or reset circuit breaker.
Electric supply may be off.
●Make sure electric supply to water heater and disconnect switch, if used, are in the ON position.
| The thermostat may | ● See the Temperature regulation of the water heater | |
| be set set too low. | section of this manual. | |
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| Leaking or open hot | ● Make sure all faucets are closed. | |
| water faucets. |
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| Electric service to your | ● Contact the local electric utility. | |
| home may be interrupted. |
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| Improper wiring. | ● See the Installing the water heater section of this | |
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| manual. |
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| Manual reset limit (ECO) | ● See the Temperature regulation of the water heater | |
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| section of this manual. |
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| Cold water inlet | ● This is normal. The colder inlet water takes longer | |
| temperature may be | to heat. | |
| colder during the |
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| winter months. |
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Water is too hot | The thermostat | ● See the Temperature regulation of the water heater | |
| is set too high. | section of this manual. | |
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CAUTION: For your safety DO NOT attempt repair of electrical wiring, thermostats, heating elements or other safety devices. Refer repairs to qualified service personnel.
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