BoilerFaultCodes.com
63:1 Low Information

Your boiler is performing a routine daily check to ensure the internal pump and components are not seized up.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description: Additional function: 1x daily

What causes this fault?

This code appears when the boiler executes its automated self-maintenance routine designed to protect internal moving parts. It physically cycles the internal pump and valves for a brief moment to prevent them from becoming stuck due to inactivity. This is a normal operational feature and does not indicate that anything has broken or failed.

This is more noticeable during summer months when the heating is rarely used, as the boiler must manually trigger the pump to prevent it from seizing.

Typical repair cost £0 (including labour)

DIY fix possible

No action required; this is a normal operating status message rather than a breakdown.Monitor the display to ensure it returns to the standard temperature reading automatically.If the code stays on the screen permanently, try a simple reset.

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →

Protect yourself from future repair bills

A boiler cover plan would cover faults like 63:1 — no call-out fees, no surprises.

Top rated
OpenFix
Boiler & heating care plans
Get a quote →
Hometree
from £12.95/month
Get a quote →
HomeServe
from £8.00/month
Get a quote →

Affiliate links — we may earn a commission at no extra cost to you.

Related fault codes