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SYSTEM MAINTENANCE
CAUTION
WARNING
To protect yourself from harm, before performing maintenance:
DANGER
• Turn off the power supply by unplugging the power cord or by
turning off the electricity at the circuit breaker. (The tempera-
ture controller does not control the electrical power.)
AVERTISSEMENT
• Turn off the gas at the manual gas valve, usually located im-
mediately below the water heater.
ATTENTION
• Turn off the incoming water supply. This can be done at the
isolation valve immediately below the water heater or by tur-
CAUTION
ning off the main water supply to the building.
WARNING
Keep the appliance area clear and free from combustible mate-
DANGER
rials, gasoline, and other flammable vapors and liquids.
The following maintenance items are required for the prop-
AVERTISSEMENT
er operation of your water heater.
The appliance must be inspected annually by a licensed profes-
sional. Furthermore, repairs and maintenance should be per-
ATTENTION
formed by a licensed professional. Such licensed professional
must also verify proper operation after servicing.
Cleaning
It is imperative that control compartments, burners, and circulat-
ing air passageways of the appliance be kept clean.
Clean as follows:
1) Turn off and disconnect electrical power. Allow to cool.
2) Close the water shut off valves. Remove and clean the water
inlet filter.
3) Remove the front panel by removing four (4) screws.
4) Use pressurized air to remove dust from the main burner, heat
exchanger, and fan blades. Do not use a wet cloth or spray
cleaners on the burner. Do not use volatile substances, such as
benzene and thinners. They may ignite or fade the paint.
5) Use soft dry cloth to wipe cabinet.
Vent System
The vent system should be inspected at least annually for block-
VUE DE FACE
ages or damage. If the vent is blocked, contact a licensed profes-
SATISFAISANT
FLAMME BLEUE
sional.
Motors
Motors are permanently lubricated and do not need periodic lu-
brication. However, you must keep fan and motor free of dust and
dirt by cleaning annually.
Temperature Controller
Use a soft damp cloth to clean the temperature controller. Do not
VUE DE FACE
use solvents.
INSATISFAISANT
ÉLECTRODE DE
FLAMME
FLAMME JAUNE
ÉLECTRODE DE
FLAMME
Lime / Scale Build-up
If you receive diagnostic code "LC#" (LC1, LC2, etc.), 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 condi-
tioned. (When checking maintenance code history, "00" is substi-
tuted for "LC#".)
Snow Accumulation
Keep the area around flue terminal free of snow and ice. The ap-
pliance will not function properly if the intake air or exhaust is
impeded (blocked or partially blocked) by obstructions.
Clean the water filter
Clean the inlet water filter by closing the cold and hot water inlet
isolation (shut-off) valves. Put a bucket under the filter at the bot-
tom of the water heater to catch any water that is contained inside
CAUTION
the unit. Unscrew the water filter. Rinse the filter to remove any
debris. Install the filter and open the isolation valves.
WARNING
Testing the pressure-relief valve should only be performed by a
DANGER
licensed professional. Scalding hot water may be released under
pressure.
AVERTISSEMENT
Pressure-Relief Valve
Operate the valve manually once a year. In doing so, it will be nec-
essary to take precautions with regard to the discharge of poten-
ATTENTION
tially scalding hot water under pressure. Ensure discharge has a
place to flow. Contact with your body or other property may cause
damage or harm.
Visual Inspection of Flame
Verify proper operation after servicing.
The burner must flame evenly over the entire surface when op-
erating correctly. The flame must burn with a clear, blue, stable
flame. See the parts breakdown of the burner for the location of
the view ports.
The flame pattern should be as shown in the figure below.
Figure 44
46 46
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