What does the Ariston L.E.D. D fault code mean?

Your boiler is failing to detect enough water movement inside the system, so it has shut itself down to prevent damage.

How much does it cost to fix Ariston error code L.E.D. D?

Typical repair cost for the Ariston L.E.D. D fault is £120-250 including labour.

Can I fix Ariston fault code L.E.D. D myself?

Check your boiler's internal pressure gauge located on the front panel.

Ariston L.E.D. D Fault Code: What It Means & How to Fix It

Technical description

Circulation Failure. Signals that the safety pressure switch on the primary circuit has not sensed a pressure of at least 1 bar within 40 seconds of pump activation.

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.

Find a Gas Safe engineer

Search the official register →

Related guides you might find useful

No hot water but heating works

Almost always a stuck diverter valve on combis.

Read →

Boiler keeps losing pressure

Six most common causes of dropping pressure.

Read →

Banging / kettling / whistling noise

Each noise points to a different fault.

Read →

Your boiler is failing to detect enough water movement inside the system, so it has shut itself down to prevent damage.

Technical description

Engineer required

Related guides you might find useful

No hot water but heating works

Boiler keeps losing pressure

Banging / kettling / whistling noise

Recently viewed