BoilerFaultCodesRavenheat E02 Fault Code
The Ravenheat E02 fault code means: your boiler has stopped working because water is not moving through the system properly, which is causing it to overheat and shut down for safety.. It appears on 9 Ravenheat models in our database.
Technical description: Problem with the pump circulation
What causes the Ravenheat E02 fault?
This fault occurs when the water inside the boiler gets too hot because it isn't being moved away quickly enough to the radiators. The most common reason is a failing internal pump that has stopped spinning, or a blockage of debris and sludge that is restricting the flow of water. It can also be caused by air trapped inside the unit which prevents the pump from working effectively.
This fault is frequently seen in autumn when the heating is turned back on for the first time after summer, as the pump can seize up during long periods of inactivity.
DIY fix possible
Check that your system pressure is between 1.0 and 1.5 bar on the pressure gaugeEnsure all radiator valves and isolation valves under the boiler are fully openBleed your radiators to remove any trapped air that might be blocking circulationPress the reset button to see if the boiler restarts
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Gas Safe Register →Ravenheat models that show the E02 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ravenheat E02 fault code information on this page is sourced and cross-checked against the official Ravenheat service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026