What does the Johnson Starley FLOW THERMISTOR FAULT fault code mean?

Your boiler's temperature sensor is reporting an error, which means the system cannot accurately track how hot the water is and has stopped running as a safety precaution.

How much does it cost to fix Johnson Starley error code FLOW THERMISTOR FAULT?

Typical repair cost for the Johnson Starley FLOW THERMISTOR FAULT fault is £95-£170 including labour.

Johnson Starley FLOW THERMISTOR FAULT Fault Code: What It Means & How to Fix It

Technical description

Flow thermistor fault involves checking wiring, connection to the low voltage 9 way connector X5 on the PCB, and thermistor resistance

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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Related fault codes

RETURN THERMISTOR FAULTView →

Your boiler's temperature sensor is reporting an error, which means the system cannot accurately track how hot the water is and has stopped running as a safety precaution.

Technical description

Engineer required

Related fault codes

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