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RESIDENTIAL GAS AND ELECTRIC WATER HEATER
SERVICE HANDBOOK
A.O. SMITH TECHNICAL BULLETINS
The following are bulletins designed to help service the standard, residential gas and
electric model water heaters. These bulletins and more are available on the A. O. Smith
website www.aosmihtwaterheaters.com.
This information is intended to supplement service and maintenance information found
in the heater installation and operation manual.
“Why water heaters leak” information ……………………………..54-55
Index of Technical Bulletins:
Water Hammer.................................................................................. 56
Mineral Buildup ................................................................................. 57
Aluminum Hydroxide ......................................................................... 58
Discolored Water............................................................................... 59
Smelly Water..................................................................................... 60
Chlorination Procedure...................................................................... 61
Not Enough Hot Water - Gas ............................................................ 62
Not Enough Hot Water – Electric ...................................................... 63
Thermal Expansion…………………………………………………....64-65
Leaking Temperature and Pressure Relief Valve.............................. 66
A.O. Smith Water Products Company Technical Training Department
©2005 Ashland City, TN
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