How much does it cost to fix Grant error code Boiler Fault Finding 1?

Typical repair cost for the Grant Boiler Fault Finding 1 fault is £100-250 including labour.

Boiler Fault Finding 1 High

Grant Boiler Fault Finding 1 Fault Code

Q: What does the Grant Boiler Fault Finding 1 fault code mean?

Your boiler is failing to ignite because it is not receiving any oil to burn.

Also written as BOILERFAULTFINDING1 — same fault.

The Grant Boiler Fault Finding 1 fault code means: your boiler is failing to ignite because it is not receiving any oil to burn.. It appears on 5 Grant models in our database.

Technical description: No fuel supply. Ensure that an adequate supply of fuel is available and that the fuelsupply valve is open.

Typical repair cost £100-250 (including labour)

DIY fix possible

Check your external oil tank gauge to ensure there is sufficient fuel remaining.Verify that the isolation valve located on the oil supply line near the boiler is set to the open position.Check if the fire valve (often a lever or button located outside the boiler casing) has been accidentally tripped and requires resetting.

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Grant models that show the Boiler Fault Finding 1 fault code

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

Source

Grant Boiler Fault Finding 1 fault code information on this page is sourced and cross-checked against the official Grant service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026