BoilerFaultCodesBiasi ER + 69 Fault Code
Also written as ER69 — same fault.
The Biasi ER + 69 fault code means: your boiler has detected an internal communication failure between the electronic control boards, meaning it cannot process commands to provide heating or hot water.. It appears on 11 Biasi models in our database.
Technical description: N/A
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Search the official register for a qualified engineer in your area.
Gas Safe Register →Biasi models that show the ER + 69 fault code
Click a model for the full fault code list and model-specific repair notes.
- Advance 25C Repair: £100-£250
- M90E 24S Repair: £180-350
- M90E 28S Repair: £180-350
- M96E Repair: £180-350
- Parva 24S Repair: £100-280
- Parva 28S Repair: £120-350
- Riva Advance M96.24SM Repair: £250-450
- Riva Advance M96.28SM Repair: £180-350
- Riva Compact 24S Repair: £180-350
- Riva Compact 28S Repair: £180-350
- Riva Plus M96.24SM Repair: £180-350
Source
Biasi ER + 69 fault code information on this page is sourced and cross-checked against the official Biasi service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026