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error Ideal
Error Code L1
Flow temperature overheating or no water flow — boiler senses excessive heat or obstruction in pipes.
? What Causes This
High system pressure, clogged lines, or insufficient fluid circulation.
✓ How to Fix It
- Check and adjust water pressure to between 1 and 1.5 bar.
- Contact Ideal (warranty) if problem endures.
Source: page 9 of the official manual
From the manual
This error code appears in:
Ideal Boilers I 24