A SERVICE OF

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RESIDENTIAL GAS AND ELECTRIC WATER HEATER
SERVICE HANDBOOK
A.O. Smith Water Products Company Training Department
©2002 Ashland City, Tennessee
6
RESIDENTAL GAS WATER HEATER SERVICE
This portion of this manual applies to the Operations and Servicing of Residential Gas, Tank
Type, Water Heaters, which are vented atmospherically and use a thermocouple as their electrical
source.
Construction: See also “General” section of this
manual.
Contro
l: There is one control on this style of water heater. The control has a
main gas regulator, pilot gas regulator, on-off-pilot knob, controls water temperature, has a
temperature adjustment knob, and a high water temperature limit safety.
(delta)
Note: The word “Hot”
may or may not be
present on the control
knob