Snow Accumulation - GE GN75DNSRSA Owner's Manual

Care and cleaning of the water heater.
SATISFACTORY
FRONT VIEW
Blue flame
UNSATISFACTORY
FRONT VIEW
Yellow flame
Bleed screw
8
Lime/Scale Buildup
WARNING:
performing this action, first remove power
to the water heater in order to prevent an
accidental scald injury.
If you are in a hard water area or do not
have a water softener, the system should

Snow Accumulation

Keep the area around the air intake and
flue terminal free of snow and ice. The
appliance will not function properly if the
intake air or exhaust is impeded (blocked
or partially blocked) by obstructions.
Visual Inspection of Flame
The burner must flame evenly over the
Flame
entire surface when operating correctly.
rod
The flame must burn with a clear, blue,
stable flame. See the parts breakdown of
the burner for location of the view ports.
The flame pattern should be as shown in
the figures to the left.
CAUTION:
A qualified service
Flame
technician should be used to perform
rod
this check. A sight glass is located on
the burner manifold after the front cover
is removed.
Winterizing Unit
For cabins, lake homes or any installation
where the unit may be unattended for long
periods of time, the freeze protection built
into the unit will prevent the system from
freezing down to –30°F if electric power
and gas are available. However, if the unit
is to be left unattended for long periods of
time in winter months, it is recommended
to unplug and drain the unit. This will
prevent damage to the unit from freezing
weather and loss of power or gas.
The system can be drained by
the following steps:
Turn off and disconnect electrical
1
power. Allow water heater to cool.
Shut off water inlet.
2
Open hot water tap at nearest faucet
3
to relieve system pressure.
Close outlet valve on unit.
4
be flushed annually or as necessary for
lime scale buildup. See page 11.
Before
If you receive Error Code "LC," refer to the
procedure Flushing the Heat Exchanger.
Refer to the section on Water Quality to
see if your water needs to be treated or
conditioned.
Have a small pan or bucket ready to
5
catch spilled water.
Remove the water inlet filter and outlet
6
bleed screw.
Allow the water to completely drain
7
from the system. Replace the inlet filter
and bleed screw.
To start the system:
Open the inlet water valve and check
1
for leaks.
Open the outlet water valve.
2
Plug in or turn on power to the unit.
3
Open the faucet and check for proper
4
operation.
When reinstalling the hot water bleed
screw, fully secure it with a wrench.