Low
54 on Ideal Logic Max Heat 2

Your boiler is working exactly as it should and is simply indicating that it has reached your desired heating temperature.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

The boiler has a call for central heating but the appliance has reached the desired temperature set on the boiler / The boiler is operating in central heating / hot water mode

Shared across the Logic Max HEAT2 range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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All 84 fault codes on the Logic Max Heat 2

Seeing a different code? Every code this model can display, in one place.

4.24.34.44.54.64.74.84.94.104.114.124.134.144.154.16059.1.59.1.81213141516171819242528293031323637384360657071758283113115116Blocked Flue/CondensateE4EAEdF9Fan FaultFdFlame LossFlame On Before Gas OnFlame on before gas valve onFlow Thermistor FaultFlow/Return ReversedFUSEGas Valve FaultH nH0Ignition LockoutL AL EL1LCDLow Mains VoltageNO CH OPERATIONNo Water FlowOutside Sensor FaultOverheat LockoutP1P4PCB FaultReturn ThermistorReturn Thermistor FaultRoom Thermostat FaultService DueService RequiredSpare PCB Not SetToo Many Restarts

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