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121Operating the Boiler

11.7 Understanding Error Codes

When an error code appears on the front panel, refer to the following chart for a definition and possible remedy

for the situation.

Error Code Reason Self-Diagnostic/ Action

E001 Heatexchanger over temperature Reset the boiler from the front panel.

E003 Ignition failure Ensure that the main gas supply valve is open.

E004 False flame detection Ensure that the electrical cord is properly grounded.

E012 Flame loss

●

Clean the intake air filter.

●

Ensure that the electrical cord is properly

grounded.

E016 Overheating of heat exchanger

●

Turn off the system for at least 30 minutes, and

then restart it.

●

Flush the heat exchanger.

E030 Abnormal exhaust temperature Contact technical support at 1-800-519-8794.

E031 Overheating of burner Contact technical support at 1-800-519-8794.

E046 Abnormal operation: limit control Contact technical support at 1-800-519-8794.

E047 Abnormal operation: exhaust thermostat Contact technical support at 1-800-519-8794.

E060 Abnormal operation: dual venturi Contact technical support at 1-800-519-8794.

E109 Abnormal operation: fan motor Clean the intake air filter.

E110 Abnormal air pressure

●

Ensure that the exhaust pipe is free of

obstructions.

●

Clean the intake air filter.

E205

Heating supply thermistor open or short

circuit