BoilerFaultCodesWhat the manual says
Manufacturer manualFlow Temp O’heat or No Water Flow Lockout
From this model's manual
Verified against the Ideal/Ideal Logic Max Heat 4179617 installation & service manual.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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All 36 fault codes on the Logic Max Heat
Seeing a different code? Every code this model can display, in one place.