Ideal Vogue Fault codes & diagnostics

15 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.

CombiSystem Natural GasLPG 15-40 kW 2012-2017 Discontinued
GC Numbers 41-750-5341-750-5441-750-5541-750-56

Replaced by: Vogue Gen2

Download the Ideal Vogue manual The official installation & service manual (PDF) — the exact document these fault codes were verified against. PDF

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Severity at a glance

Each cell = one fault code. Hover to identify.
15 High

Which version do you have?

The GC number on your boiler's data badge identifies the exact appliance and production years, as recorded in the UK Product Characteristics Database.

GC number Appliance (register name) Produced
41-750-53 VOGUE s32 2012–2017
41-750-54 VOGUE s26 2012–2017
41-750-55 VOGUE s18 2012–2017
41-750-56 VOGUE s15 2012–2017

All 15 documented codes

Tap any card for details

C0

Your boiler's internal memory chip has failed to communicate correctly with the main control board, meaning the system cannot identify its own settings.

High Engineer only £120-280

Parts commonly replaced

  • Boiler Chip Card (BCC)
  • Printed Circuit Board (PCB)

Related codes

C2

Your boiler's internal memory card has developed a communication fault or is incorrectly configured, preventing the unit from operating.

High Engineer only £120-£280

Parts commonly replaced

  • Boiler Chip Card (BCC)
  • Printed Circuit Board (PCB)

Related codes

F3

Your boiler has detected an issue with the fan that safely clears away exhaust fumes, causing the system to shut down for safety.

High Engineer only £250-£450

Parts commonly replaced

  • Fan assembly
  • Printed Circuit Board (PCB)
  • Wiring harness

Related codes

Flow return reversed

Your boiler has detected that the water temperature readings are backwards, suggesting a sensor might have come loose or failed.

High Engineer only £90-180

Parts commonly replaced

  • Flow thermistor
  • Return thermistor
  • Thermistor clip

Related codes

Flow/Return reversed

Your boiler has detected that heat isn't moving through the pipes in the expected direction, which usually means a sensor is loose or has failed.

High Engineer only £90-160

Parts commonly replaced

  • Flow thermistor
  • Return thermistor

Related codes

FU

Your boiler has detected that the water is getting too hot too quickly, which usually means the water cannot circulate properly through your heating system.

High DIY-safe £100-350

What to check first

  1. Check that all the blue and red lever valves underneath the boiler are fully turned to the open position
  2. Ensure your radiator valves (TRVs) are turned up and not all closed at once
  3. Check that your central heating pump isn't making unusual grinding noises or stuck

Parts commonly replaced

  • Central heating pump
  • Flow/Return thermistors
  • Main heat exchanger (flushing)

Related codes

Ignition lockout

Your boiler has failed to light several times and has shut down as a safety precaution.

High DIY-safe £100-£350

What to check first

  1. Check if other gas appliances, like a gas hob, are working to confirm gas supply
  2. Check that your gas meter has credit if you use a prepaid meter
  3. Press and hold the 'Reset' button on the boiler display for 3 seconds

Parts commonly replaced

  • Ignition Electrode
  • Gas Valve
  • PCB
  • Spark Lead

Related codes

L1

Your boiler has stopped working because the internal temperature has become too high or water is not circulating through the system properly.

High DIY-safe £120-350

What to check first

  1. Check that your radiator valves are open
  2. Check that your boiler pressure is between 1.0 and 1.5 bar
  3. Reset the boiler by pressing the reset button on the control panel

Parts commonly replaced

  • Circulation Pump
  • Flow Thermistor
  • Heat Exchanger (Flushing)

Related codes

Low mains voltage

Your boiler has stopped working because the electrical supply is currently too weak to power the internal components safely.

High Engineer only £180-350

Parts commonly replaced

  • Circulating Pump
  • Internal Wiring Harness
  • Main PCB

Related codes

Low water pressure

Your boiler has stopped working because the water level inside the system has dropped too low and needs topping up.

High DIY-safe £0-120

What to check first

  1. Locate the filling loop (usually a silver flexible hose) underneath the boiler.
  2. Slowly open the one or two taps on the loop until you hear water flowing.
  3. Watch the pressure gauge on the screen until it reaches 1.5 bar, then close the taps tightly.

Parts commonly replaced

  • Filling loop valve
  • Expansion vessel
  • Pressure sensor

Related codes

Overheat lockout

Your boiler has become too hot and has shut itself down for safety to prevent damage.

High DIY-safe £100-350

What to check first

  1. Check the pressure gauge and refill to 1.0 bar if it is low
  2. Bleed all radiators to remove trapped air
  3. Ensure all radiator valves and boiler service valves are fully open
  4. Press the Reset button on the boiler display

Parts commonly replaced

  • Circulating Pump
  • Overheat Thermostat
  • Main Heat Exchanger

Related codes

Pump rotor blocked

Your boiler's internal pump has become stuck or clogged, which means it cannot circulate hot water around your radiators or taps.

High Engineer only £180-£450

Parts commonly replaced

  • Central Heating Pump
  • Pump Head
  • Secondary Heat Exchanger

Related codes

Thermal fuse lockout

Your boiler has safety-locked because it got too hot, and it needs a manual restart to clear the internal safety switch.

High DIY-safe £0-120

What to check first

  1. Locate the reset button on the front control panel
  2. Press the reset button and wait for the boiler to restart
  3. Ensure your radiator valves are open and the system pressure is between 1 and 1.5 bar

Parts commonly replaced

  • None (Reset only)
  • Thermal Fuse Cable
  • Main Heat Exchanger

Related codes

Too many resets

Your boiler has been manually reset too many times in a short window and has now locked itself for safety to prevent further issues.

High Engineer only £100-£350

Parts commonly replaced

  • Ignition Electrode
  • Gas Valve
  • Printed Circuit Board (PCB)
  • Flame Sensing Electrode
Water pressure

Your boiler has stopped working because the water pressure inside the system is too low for it to run safely.

High DIY-safe £0-120

What to check first

  1. Locate the filling loop (usually a silver flexible hose) underneath the boiler.
  2. Slowly open the tap handles until you hear water entering and see the pressure gauge reach 1.0 bar.
  3. Close both taps tightly and reset the boiler if necessary.

Parts commonly replaced

  • Filling loop valve
  • Pressure sensor
  • Expansion vessel

Related codes