Ideal Boiler Error Codes

Ideal Logic Max System / Logic Plus System Boiler Error Codes

Fault Description
System Behaviour
L1
Flow temperature overheat lockout or no water flow lockout
L2
Ignition lockout
LC
Turn power off and on
L6
False flame lockout
F1
Low water pressure
F2, FN or LN
Flame loss
F3
Fan fault
L4 or F4
Control / no flow thermistor fault
L5 or F5
Return thermistor fault
F6
Outside sensor fault
F7
Low mains voltage – contact electricity provider.
F9, L9, F8 or L8
Printed circuit board (PCB) unconfigured or fault
FU
Difference greater than 50c – check isolation valves are open
No central heating
Boiler problems? Book an engineer now.
No hot water
Boiler problems? Book an engineer now.
No display
Boiler problems? Book an engineer now.

Ideal Boiler Error Codes

Fault Code
System Behaviour
C0
Boiler chip card (BCC) activation fault
C2
Boiler chip card (BCC) fault
F1
Low water pressure
F2
Flame loss
F3
Fan fault
F4
Flow thermistor fault
F5
Return thermistor fault
F6
Outside sensor failure
F7
Low mains voltage
F9
Unconfigured printed circuit board (PCB)
L1
Flow temperature overheat or no water flow
L2
Flame loss
L5
5 boiler resets in 15 minutes
L6
False flame lockout
Fault Code
System Behaviour
0
The boiler is in standby mode awaiting either a central heating call or hot water demand
C
The boiler has a call for central heating but the appliance has reached the desired temperature set on the boiler
D
The boiler has a call for hot water but the appliance has reached the desired temperature set on the boiler
C
The boiler is operating in central heating mode
d
The boiler is operating in hot water mode
f
The boiler is operating in frost mode

Ideal Logic Max & Logic Plus Regular Boiler Error Codes

Fault Description
System Behaviour
L1
Flow temperature overheat lockout or no water flow lockout
LC
5 restarts within 15 minutes
L6
False flame lockout
FA
Flow return reversed
FD
No water flow
Flame loss
F3
Fan fault
L4 or F4
Control / no flow thermistor fault
L5 or F5
Return thermistor fault
F6
Outside sensor fault
F7
Low mains voltage Contact electricity provider
F9, L9, F8 or L8
Printed circuit board (PCB) unconfigured or fault
FU
Diff greater than 50c check isolation valves are open
No central heating
Boiler problems?
Book an engineer now.
No hot water
Boiler problems?
Book an engineer now.
No display
Boiler problems?
Book an engineer now.

Ideal Logic Max Plus Combi Boiler Error Codes

Fault Description
System Behaviour
Overheat lockout
Bleed radiators, refill system to 1.0 bar, check that radiator and boiler valves are open and reset boiler. If fault continues book an engineer.
Check gas appliances work and restart boiler.
Too many restarts
5 starts within 15 minutes. Turn power on and off.
Flame on before gas on
False flame lockout.
Water pressure
With boiler off and system cold fill system to 1.0 bar and bleed radiators if fault continues contact an installer.

Ideal Vogue Boiler Error Codes

Fault Description
System Behaviour
Too many resets
5 restarts within 15 minutes
Flame on before gas valve on
Flame on before gas valve is on
Flow thermistor fault
Flow thermistor error
Low mains voltage
Less than 185v to boiler then check voltage at boiler mains in if mains voltage is okay pump needs replacing
Low water pressure
Low water pressure
Flow return reversed
Check if the flow thermistor is correctly clipped to pipe. If not, replace flow thermistor.
Printed circuit board (PCB) recently replaced
Pump rotor blocked
Unblock pump
Flow temperature setpoint cannot be increased to 80c
Check flow and return thermistors securely clamped to pipes check flow and return thermistor
Overheat lockout error
Boiler problems?
Book an engineer now.
Flame loss
Boiler problems?
Book an engineer now.
Thermal fuse lockout
Boiler problems?
Book an engineer now.
Outside sensor fault
Boiler problems?
Book an engineer now.
Return thermistor fault
Boiler problems?
Book an engineer now.
Fan fault
Boiler problems?
Book an engineer now.
Printed circuit board (PCB) error
Boiler problems?
Book an engineer now.
No central heating but domestic hot water working
Boiler problems?
Book an engineer now.
No hot water but central heating working
Boiler problems?
Book an engineer now.
No water flow fault
Boiler problems?
Book an engineer now.
No water flow fault
Boiler problems?
Book an engineer now.

Ideal Boiler Error Descriptions

Fault Description
Cause
Thermal fuse lockout
Too many boiler resets
5 resets within 15 minutes. Turn power off and on.
Printed circuit board (PCB) replaced incorrectly
Ensure the boiler chip card (BCC) is fitted correctly.
Low mains voltage
Less than 160V to boiler. Contact electricity provider.
Increase system pressure to 1.5 bar
Flow/Return reversed
Check if flow thermistor is correctly clipped to pipe. Replace flow thermistor.
Printed circuit board (PCB) replaced
No connection to primary printed circuit board (PCB)
Unblock pump
Pump rotor blocked
No connection to primary printed circuit board (PCB)
Flow temperature setpoint cannot be increased to 80ºC
Ensure flow temperature is not limited within installer mode
Pump runs during the night
Ensure system frost protection temperature setpoint isn’t set too high
Has the printed circuit board (PCB) just been replaced?
Are the boiler, central heating and hot water systems filled with water? Are all isolation valves and radiator valves open?
Fill and vent the system and open all isolation valves, then reset the boiler
Is the Flow/Return differential across the boiler in excess of 30c
Check the flow and return thermistors
Check that the pump is rotating freely.
Replace the pump, then reset the boiler
If the boiler is reset, does it ignite for a short time and then extinguish?
Check the detection electrode and associated harness for continuity, visual condition and position. Check if the condensate pipe is blocked.
Is the gas pressure avaliable at the boiler > 18mBar
Check gas supply and rectify fault
Is 215Vdc avaliable at the gas valve during ignition?
Check wiring from gas valve to printed circuit board (PCB) and replace if necessary, otherwise replace the main PCB
Unplug the gas valve – is the resistance between the pins between 1kW and 10kW?
Replace gas valve
Request Call Back
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