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error Ideal
Error Code F8 L8 FAULT CODES
Unconfigured PCB or gas valve short circuit issue in the control board.
? What Causes This
Software misconfiguration, hardware failure or wiring issues.
✓ How to Fix It
Contact Ideal (warranty period) or a Gas Safe Registered Engineer for repair.
Source: page 9 of the official manual
From the manual
This error code appears in:
Ideal Boilers I 24