D.83 Low
Your boiler is notifying you that it has started heating up to provide hot water to your taps or cylinder.
Technical description: Burner start up in hot water mode
Typical repair cost: £0 (including labour)
DIY fix possible
This fault may be fixable without an engineer. Check your manual first.
Protect yourself from future repair bills
A boiler cover plan would cover faults like D.83 — no call-out fees, no surprises.
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