BoilerFaultCodesYour boiler's internal control board has overheated or suffered an electrical failure, causing the system to shut down to prevent damage.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Fault: Electronics temp. - Electronics defective or too hot due to external influences
What causes this fault?
This fault occurs when the boiler's main control board reaches an unsafe temperature or suffers an internal electrical short circuit. The most common reason is a physical failure of the electronic components on the circuit board, though it can occasionally be caused by heat soak from other failing parts within the boiler casing.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
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A boiler cover plan would cover faults like F.65 — no call-out fees, no surprises.
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Could it be time for a new boiler?
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