Safety Notice - This is a gas-fired product, and only professionals who are qualified to work on live gas equipment should do so.
An "EA" code displayed is an indication that the boiler attempted to ignite, but either failed to achieve combustion or the combustion was not seen by the flame sensor.
There are many potential causes of such an issue, but the most common are listed below.
1. Using a manometer, check that the static gas pressure at the boiler is within the required range;
NG: 3.5" to 10.5"
LP: 8" to 13"
If the static gas supply pressure to the boiler is outside of those parameters, please assess the gas supply to the property and the gas installation to the boiler to identify the problem and resolve.
2. When the boiler tries to fire, are you seeing a slight gas pressure drop on your manometer?
Yes: This indicates that the gas valve is at least opening, so please check the following;
• Ensure that the ignition electrodes are sparking.
• Check for loose or disconnect wires, and resolve if found.
• Check that the air supply to the boiler is adequate and free of blockage.
• Check that the condensate trap is not backed up.
• There is a diaphragm valve located within the top of the plastic air tube that runs into the bottom of the inducer fan, check to make sure that the diaphragm is not stuck.
No: Please contact our technical support team at 1-800 283 3787 Monday to Friday. The very best way to assist you would be for you to be at the boiler with your manometer, a multimeter, and a combustion analyzer.