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
