High
ER 06 + SPANNER on Johnson Starley Warmcair DW

Your boiler has detected that a temperature sensor responsible for your central heating is reporting an incorrect or impossible reading.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

CH flow temp sensor out of range

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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