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Biasi — Riva Advance
Select a fault code
Fault Codes
E01Ignition lockout🔄 Try Reset
Failed ignition sequence — gas or ignition system fault.
E03Overheat lockout🔧 Engineer Required
Primary circuit overheated.
E04False flame detected🔧 Engineer Required
Flame signal detected without burner request — gas valve fault.
E05Fan or flue fault🔧 Engineer Required
Fan or air pressure switch fault.
E09Low pressure🔄 Try Reset
System pressure below minimum operating level.
E20Condensate blockage🔄 Try Reset
Condensate pipe blocked or frozen.
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Protect against future repair bills
Boiler cover means no surprise costs when things go wrong
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HometreeFrom £7/month
Boiler & heating cover with no call-out fees
HomeServeFrom £9/month
24/7 call-out, 4-hour emergency response
British GasFrom £10/month
Nationwide network of engineers
Prices shown are indicative — actual cost depends on your boiler age and policy type.
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Gas Emergency
🚨 0800 111 999
Free, 24/7 — if you smell gas
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