Installation Guide

28 • Residen al Gas Water Heater Use and Care Guide for Manufactured Homes
MAINTENANCE
MAINTENANCE
10
Refi ll the tank by opening the
cold water supply valve. Make
sure a hot water faucet is
open and the drain valve is closed.
Allow a hot water faucet to run full for
at least three minutes to make sure the
tank has all the air removed and is
completely full of water. Once you are
certain the tank is completely full of
water, close the hot water faucet.
11
Relight the pilot using the
instruc ons on page 22 and
adjust the gas control knob to
the desired temperature. It may take
an hour or more for the tank of cold
water to heat up.
Visual Inspec on
On an annual basis, visually inspect the
ven ng and air supply system, piping
systems, main burner, pilot burner, and
the air fi lter.
Check the water heater for the following:
• Obstruc ons, damage, or
deteriora on in the ven ng
system. Make sure the ven la on
and combus on air supplies are
not obstructed. Check the air fi lter
for dust or other debris and clean
if needed.
• Build up of soot and carbon on
the main burner and pilot burner.
The burner may be cleaned with
soap and hot water.
• Inspect the burner fl ames through
the viewport and compare them
to the drawing below. A properly
opera ng burner should produce
a so blue fl ame. Blue  ps with
yellow inner cones are sa sfactory.
The  ps of the fl ame may have a
slight yellow  nt. The fl ame should
not be all yellow or have a sharp
blue-orange color. Contaminated air
may cause an orange colored fl ame.
Contact a qualifi ed technician if the
fl ame is not sa sfactory.
Figure 40: Burner Flames
• Leaking or damaged water and gas
piping.
• Remove any fl ammable, corrosive
or combus ble materials near the
water heater.
If you lack the necessary skills required
to properly perform this visual
inspec on or if the burner needs to
be cleaned, get help from a qualifi ed
person.
T&P Relief Valve Maintenance
Figure 41: T&P Relief Valve.
Read and follow the opera ng and
annual maintenance instruc ons
provided by the manufacturer of the
T&P Relief Valve (yellow label a ached
to T&P Relief Valve). Minerals in the
water can form deposits that cause
the valve to s ck or create blocked
passages, making the T&P Relief Valve
inopera ve. Follow these guidelines:
• At least annually, operate the T&P
Relief Valve manually to ensure the
waterways are clear and the valve
mechanism moves freely (above).
Before opera ng the valve manually,
check that it will discharge in a place
for secure disposal.
WARNING! Hot water will be
released. Before opera ng the T&P
relief valve manually, check that it will
discharge in a safe place. If water does
not fl ow freely from the end of the
discharge pipe, turn the gas control
knob to the OFF posi on and call a
qualifi ed person to determine the
cause.
• At least every fi ve years, have a
qualifi ed person inspect the T&P
Relief Valve and discharge pipe.
Damage caused by corrosive water
condi ons, mineral deposits,
or other problems can only be
determined when a qualifi ed
person removes and inspects the
valve and its components.
A dripping T&P Relief Valve is usually
caused by the home’s water pressure
being too high or the lack of a Thermal
Expansion Tank. If your T&P Relief
Valve drips, see page 25.
A T&P relief valve that has been
allowed to drip for an appreciable
period of  me should be inspected for
mineral buildup. See T&P relief valve
tag for more informa on.
Inspect and Clean the Air Filter
FILTER
Figure 42: Clean air filter periodically.
An air fi lter should be installed around
the base of the water heater. At least
annually, inspect the air fi lter and
check for a build-up of dust or debris.
Vacuum the fi lter to remove any dust
or debris. If an oily residue is present
on the fi lter, wash it in soap and water,
then dry the fi lter. See also Air Filter
on page 15.