What does the Potterton Display not illuminated fault code mean?

Your boiler has no power going to it at all, meaning the screen is blank and it won't respond to any commands.

How much does it cost to fix Potterton error code Display not illuminated?

Typical repair cost for the Potterton Display not illuminated fault is £80-280 including labour.

Can I fix Potterton fault code Display not illuminated myself?

Check if your main electrical consumer unit has tripped

Potterton Display not illuminated Fault Code: What It Means & How to Fix It

Technical description

All power off.

What causes this fault?

This fault occurs when the boiler's electrical heartbeat is interrupted, preventing the control system from waking up. The most common reason is a blown internal fuse or a failed main circuit board that can no longer distribute power. Occasionally, this is triggered by an external issue like a tripped circuit breaker or a faulty transformer failing to convert the voltage correctly.

This issue is more common during the autumn and winter months when electrical surges from storms or increased demand on the grid can damage sensitive internal components like the circuit board.

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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Your boiler has no power going to it at all, meaning the screen is blank and it won't respond to any commands.

Technical description

What causes this fault?

Engineer required

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