How to Troubleshoot Condensation on an A.O. Smith Hot Water Boiler
An A.O. Smith boiler is made out of cast iron and is available in several sizes for variable heat needs. The boiler has an insulated metal jacket, water pressure glass and steam pressure gauge, and low water cutoff switch. However, despite these features, condensation may sometimes develop on the boiler, which can indicate a dangerous situation. Condensation on the boiler always requires attention and correction. Does this Spark an idea?
Instructions
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Check the A.O. Smith boiler display panel on the control panel and read the return water temperature display.
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Increase the water temperature setting to 160 degrees Fahrenheit if the water temperature is set to less than 160 degrees Fahrenheit. Press “Domestic Hot Water” on the control panel and press “No” when the display shows “DHW Boiler?”
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Use the up arrow key to increase the “DHW Setpoint” to 160 degrees Fahrenheit and then change the “DHW Diff” to 20 degrees, which is the set differential that indicates the minimum water temperature needed in the water tank.
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Press the arrow keys to move down to “Use Sensor?” and press “Select” to enter “Yes” and then “Select” again to turn on the water temperature sensor.
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Turn off the boiler and contact Smith for service if the return temperature warning flashes again and the return water temperature shows less than 160 degrees Fahrenheit as low temperatures for an extended amount of time can be detrimental to the boiler.
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Tips & Warnings
Note that return water temperatures of 130 degrees Fahrenheit or lower can create condensation of the flue gases, which in turn can damage the boiler heat exchanger. Adjust the return water temperature as soon as the condition is noticed and contact Smith for assistance if the problem does not resolve after altering the water temperature.
