BoilerFaultCodesWarmhaus E14 Fault Code
The Warmhaus E14 fault code means: your boiler has detected that the sensor monitoring the temperature of the exhaust fumes is sending an incorrect signal or has failed.. It appears on 1 Warmhaus model in our database.
Technical description: Exhaust gas temperature sensor error – electronic card detecting an anomaly in the gas exhaust gas sensor.
What causes the Warmhaus E14 fault?
This fault occurs when the boiler's internal computer receives an implausible or missing signal from the sensor that monitors the heat of the exhaust gases. The most common reason is that the sensor itself has developed a fault or been damaged by excessive heat, though it can also be caused by loose wiring or a communication error within the main control board.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Warmhaus models that show the E14 fault code
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Source
Warmhaus E14 fault code information on this page is sourced and cross-checked against the official Warmhaus service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026