Manuals / A.O. Smith / Household Appliance / Water Heater

A.O. Smith del and del Water is TOO HOT, Water Heater Makes Sounds, Water Leakage is Suspected

Models: del and del

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6. Look for leaking or open hot water faucets.

WATER IS TOO HOT

1. Refer to TEMPERATURE REGULATION section.

WATER HEATER MAKES SOUNDS

1. See MAINTENANCE

WATER LEAKAGE IS SUSPECTED

1.Check to see if the heater drain valve is tightly closed.

2.The apparent leakage may be condensation which forms on cool surfaces of the heater and piping.

3.If the outlet of the relief valve is leaking it may represent:

•Excessive water pressure.

•Excessive water temperature.

•Faulty relief valve.

Excessive water pressure is the most common cause of relief valve leakage. It is often caused by a “closed system”. A check

valve in the inlet system will not permit the expanded hot water volume to equalize pressure with the main. A relief valve must release this water or the water heater or plumbing system will be damaged.

When such a condition is encountered, local codes or inspection agency should be consulted to determine which system is acceptable in your area. These may consist of:

•Installation of a second relief valve with lower setting than the primary safety relief valve.

•An expansion tank of suitable pressure and provision to avoid water logging.

•Removal of the check valve.

IF YOU CANNOT IDENTIFY OR CORRECT

THE SOURCE OF THE MALFUNCTION

1.Place the water heater electrical switch in the OFF position.

2.Close the cold water inlet valve to the heater.

3.Contact your dealer.

NOTES

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A.O. Smith del and del warranty Water is TOO HOT, Water Heater Makes Sounds, Water Leakage is Suspected
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del and del specifications

A.O. Smith is a leading manufacturer in the water heating industry, known for its innovative solutions and commitment to energy efficiency. Established in 1874, the company has built a reputation for producing high-quality water heaters for both residential and commercial applications. With a focus on research and development, A.O. Smith incorporates cutting-edge technologies into its products, positioning itself as a pioneer in modern water heating solutions.

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