ER 69 High

Johnson Starley ER 69 Fault Code

Also written as ER69 — same fault.

The Johnson Starley ER 69 fault code means: your boiler is failing to detect the water pressure inside the system because the sensor is disconnected or faulty, which is preventing it from safely heating your home.. It appears on 1 Johnson Starley model in our database.

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: Water pressure sensor not connected
Typical repair cost £120-220 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Johnson Starley models that show the ER 69 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Johnson Starley ER 69 fault code information on this page is sourced and cross-checked against the official Johnson Starley service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026