105 Low
Your boiler is simply running an automatic air-removal cycle after being switched off or experiencing a brief power cut.
Technical description: Venting program active when power turned on / interrupted (runs for 7 mins)
Typical repair cost: £0 (including labour)
DIY fix possible
Wait for 7 minutes for the automated cycle to completeEnsure your radiators are turned up high during this periodCheck that your boiler pressure is between 1.0 and 1.5 bar
Protect yourself from future repair bills
A boiler cover plan would cover faults like 105 — no call-out fees, no surprises.
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