Where combustion air is drawn in through the air intake screen s and flame arrestor.
Cleaning water heater air intake screen.
The flame arrestor is a made from a fine metal screen or ceramic plate that can become clogged with dust or lint.
Visual to show the screen that becomes restricted and chokes off inlet or combustion air to the burners.
Gas control knob top view figure 2 2.
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Turn the water heater gas control knob to off and allow the burner area to cool see figure 2.
Clean out all dust and debris from under the burner with a vacuum cleaner.
Cleaning the air filter and flame arrestor.
To remove the face plate you have to first unscrew all the screws and then lift upwards to unhook the top of the face plate from the top of the tankless water heater frame.
Cleaning burner on the gas water heater duration.
Remove the clip on perforated air intake screen from the base of the heater.
How to clean hot water heater air intake screen duration.
The second will cover the steps necessary to clean the combustion chamber.
Remove the plastic air intake screen s and use a small mirror and flashlight to view the bottom of the flame arrestor.
The rinnai is typical.
Water heaters have an air filter.
Depending on the amount of dust or lint in the water heater s location the air filter may become clogged with debris.
You should visit the heater at least once every three months.