FD Low
Your boiler has entered a temporary status because the reset button was held down for too long or pressed by mistake.
Technical description: Reset button pressed by mistake
Typical repair cost: £0 (including labour)
DIY fix possible
Press the reset button firmly once and release it immediately.Wait up to 30 seconds for the display to clear and return to the normal temperature reading.If the code persists, turn the power to the boiler off and back on at the fused spur switch.
Protect yourself from future repair bills
A boiler cover plan would cover faults like FD — no call-out fees, no surprises.
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