Draining; Drain Valve Washer Replacement; Service - A.O. Smith Residential Power Vent Gas Water Heaters with Hot Surface Ignition Instruction Manual

Periodic Maintenance (cont'd)

Draining

The water heater should be drained if being shut down dur-
ing freezing temperatures. Also periodic draining and clean-
ing of sediment from the tank may be necessary.
1. Turn "OFF" gas supply to water heater.
2. CLOSE the cold water inlet valve to the water heater.
3. OPEN a nearby hot water faucet and leave open to
allow for draining.
4. Connect a hose to the drain valve and terminate to an
adequate drain.
5. OPEN the water heater drain valve to allow for tank
draining.
NOTE: If the water heater is going to be shut down and
drained for an extended period, the drain valve should
be left open with hose connected allowing water to ter-
minate to an adequate drain.
6. Close the drain valve.
7. Follow instructions in the "Filling The Water Heater"
section.
8. Follow the lighting instructions in the "Lighting" section
to restart the water heater.
Drain Valve Washer
Replacement
NOTE: For replacement, use a
available at your nearest hardware store. For ordering
replacement washers, refer to the "Repair Parts" section.
1. Turn "OFF" gas supply to water heater.
2. Follow "Draining" instructions.
3. Turning counter clockwise, remove the hex cap below
the screw handle.
4. Remove the washer and put the new one in place.
5. Screw the handle and cap assembly back into the drain
valve and retighten using a wrench. DO NOT OVER
TIGHTEN.
6. Follow instructions in the "Filling The Water Heater"
section.
7. Check for leaks.
8. Follow the lighting instructions in the "Lighting" section
to restart the water heater.

Service

If a condition persists or you are uncertain about the oper-
ation of the water heater, let a qualified person check it out.
Call the local utility and/or plumbing contractor.
" x " x " thick washer
⁄ ⁄ ⁄
17 13 1
32 64 8
HANDLE AND
CAP ASSEMBLY
WASHER
33