BoilerFaultCodesGrant Vortex Blue Fault Codes
Oil Oil 15-36 kW 2016-present
GC Numbers: 41-311-7341-311-7441-311-7541-311-7641-311-7741-311-7841-311-7941-311-8041-311-8141-311-8241-311-83
This boiler uses LED flash patterns
Count the flashes in one repeating group before the pause. That number is your fault code. Do not reset until you have noted it. How to read fault codes →
Most common fault codes
Green blinking light Off Red blinking light
Your boiler is struggling to burn fuel correctly because the balance of air is incorrect or a sensor is faulty.
Gas Safe engineer required · £120-350
Your boiler's burner has detected light when it should be dark inside, causing it to shut down for safety.
May be DIY safe · £90-180
Your boiler's safety sensor thinks there is a fire inside before it has even started, causing the system to shut down for safety.
Gas Safe engineer required · £120-280
All 4 fault codes
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