What does the Potterton Lockout (Rapid Flashing Red) fault code mean?

Your boiler has failed to start after three attempts, likely because it is struggling to find a stable gas supply or has air trapped in the system.

How much does it cost to fix Potterton error code Lockout (Rapid Flashing Red)?

Typical repair cost for the Potterton Lockout (Rapid Flashing Red) fault is £120-250 including labour.

Potterton Lockout (Rapid Flashing Red) Fault Code: What It Means & How to Fix It

What the manual says

Manufacturer manual

The boiler will attempt to light, if the boiler does not light within 3 attempts (due to air in the system) the boiler controls will go to 'Lockout' and the upper Red LED on the control panel will go to a rapid flashing mode.

From this model's manual

Verified against the Potterton Boiler Suprima30gcno 41 607 75 installation & service manual.

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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Boiler cover options

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A cover plan would handle faults like Lockout (Rapid Flashing Red): no call-out fees, no surprise bills.

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All 4 fault codes on the Ultra 2 30 DV

Seeing a different code? Every code this model can display, in one place.

Green light flashes rapidly Green light On only Red LED: FLASHING

Your boiler has failed to start after three attempts, likely because it is struggling to find a stable gas supply or has air trapped in the system.

What the manual says

Engineer required

Avoid the next call-out bill

All 4 fault codes on the Ultra 2 30 DV

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