Ideal Vogue Combi Fault codes & diagnostics

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

Combi Natural Gas 26-40 kW 2013-present

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Severity at a glance

Each cell = one fault code. Hover to identify.
13 High 2 Medium 3 Low
Just want the most common Ideal Vogue Combi faults?
The top 6 problems in plain English — with causes, DIY checks and repair costs.
Fault codes

All 18 documented codes

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4.4

Your boiler is struggling to keep a flame lit, which means the system has safely shut itself down to prevent a fault.

High DIY-safe £100-£350

What to check first

  1. Check that your gas pre-payment meter (if you have one) has credit.
  2. Verify that other gas appliances, like a hob, are working correctly to rule out a gas supply issue.
  3. Restart the boiler by pressing the 'Reset' button on the display panel.

Parts commonly replaced

  • Ignition electrode
  • Flame sensing probe
  • Gas valve
  • Condensate trap (clearing a blockage)
Full explanation for 4.4
4.5

Your boiler has overheated to a critical level and a safety component has permanently cut the power to prevent serious damage.

High Engineer only £180-350

Parts commonly replaced

  • Main Heat Exchanger
  • Thermal Fuse
  • Heat Exchanger Wiring Harness
  • Overheat Thermostat
Full explanation for 4.5
4.6

Your boiler thinks it sees a flame before it has even started the ignition process, which is a safety conflict that prevents it from running.

High Engineer only £180-450

Parts commonly replaced

  • Flame sensing electrode
  • Gas valve
  • Main PCB (Printed Circuit Board)
Full explanation for 4.6
4.7

Your boiler has detected a problem with the internal sensor that measures the temperature of the water leaving the unit, preventing it from heating correctly.

High Engineer only £90-160

Parts commonly replaced

  • Flow Thermistor (NTC Sensor)
  • Wiring Harness

Related codes

Full explanation for 4.7
4.8

Your boiler has lost communication with the sensor that monitors the outdoor temperature, meaning it might not heat your home as efficiently as usual.

Low DIY-safe £90-160

What to check first

  1. Check the outdoor sensor for any obvious physical damage or loose wires
  2. Ensure the sensor is not covered by snow, debris, or overgrown plants
  3. Reset the boiler to see if the fault clears

Parts commonly replaced

  • Outdoor weather compensation sensor
  • External sensor wiring

Related codes

Full explanation for 4.8
4.9

Your boiler has lost its ability to measure the temperature of the water coming back from your radiators, often resulting in the system shutting down for safety.

High Engineer only £120-£210

Parts commonly replaced

  • Return Thermistor (NTC Sensor)
  • Connecting Wiring Harness

Related codes

Full explanation for 4.9
4.10

Your boiler has stopped working because the fan that safely removes exhaust gases isn't running at the correct speed.

High Engineer only £280-450

Parts commonly replaced

  • Extraction Fan
  • Main PCB
  • Wiring Loom
Full explanation for 4.10
4.11

Your boiler has detected that there is not enough water in the system to operate safely, causing it to shut down to prevent damage.

High DIY-safe £0-120

What to check first

  1. Locate the filling loop valves on the pipework underneath the boiler.
  2. Slowly open the valves until you hear water entering the system.
  3. Watch the pressure gauge and close the valves once the needle reaches between 1.0 and 1.5 bar.

Parts commonly replaced

  • Filling loop
  • Expansion vessel
  • Pressure sensor

Related codes

Full explanation for 4.11
4.12

Your boiler has stopped working because it cannot detect water moving through the system to keep it from overheating.

High DIY-safe £100-£350

What to check first

  1. Check if the pressure gauge is below 1 bar and top it up using the filling loop
  2. Ensure all radiator valves and boiler isolation valves are fully open
  3. Check for any visible leaks around your radiators or the boiler itself
  4. Restart the boiler once the pressure is correct

Parts commonly replaced

  • Circulating Pump
  • Water Pressure Sensor
  • Flow Thermistor

Related codes

Full explanation for 4.12
4.13

Your boiler's internal computer parts are failing to talk to each other, meaning the system cannot receive the instructions it needs to start up.

High Engineer only £250-£550

Parts commonly replaced

  • Main PCB
  • Wiring Harness
  • Display PCB

Related codes

Full explanation for 4.13
4.14

Your boiler is providing hot water to your taps correctly, but there is a communication or mechanical fault preventing it from heating your radiators.

Medium Engineer only £120-£350

Parts commonly replaced

  • Diverter Valve Motor
  • Diverter Valve Cartridge
  • External Programmer

Related codes

Full explanation for 4.14
4.15

Your boiler is providing central heating as normal, but it has stopped producing hot water when you turn on your taps.

Medium Engineer only £180-350

Parts commonly replaced

  • Diverter Valve Motor
  • Diverter Valve Cartridge
  • DHW Plate Heat Exchanger
Full explanation for 4.15
4.16

Your boiler has lost power or the screen has stopped working, meaning you cannot see the status of your heating and hot water.

High DIY-safe £100-£450

What to check first

  1. Check if your home's main electrical consumer unit has a tripped circuit breaker
  2. Ensure the boiler's power switch or fused spur on the wall is turned on
  3. Check if any other appliances in the house have lost power

Parts commonly replaced

  • Display PCB
  • Main Control PCB
  • Internal Fuse
Full explanation for 4.16
BLANK DISPLAY

Your boiler has no power or the control screen has failed, meaning the heating and hot water will not work until electricity is restored to the unit.

High DIY-safe £100-350

What to check first

  1. Check if other appliances in the house are working to rule out a general power cut.
  2. Inspect your main fuse box/consumer unit to see if the heating circuit tripper switch has flipped to 'OFF'.
  3. Check the fused spur switch (usually a red neon light switch near the boiler) to ensure it is turned on and the fuse hasn't blown.

Parts commonly replaced

  • Internal Fuse
  • Main Printed Circuit Board (PCB)
  • Display User Interface (UI) Board
Full explanation for BLANK DISPLAY
FAN FAULT

Your boiler has detected a problem with its internal fan and has shut down as a safety precaution, meaning you will not have any heating or hot water.

High Engineer only £250-£450

Parts commonly replaced

  • Fan assembly
  • Printed Circuit Board (PCB)
  • Wiring harness
Full explanation for FAN FAULT
PCB FAULT

Your boiler's main internal computer has developed a critical software or hardware failure and can no longer control the heating or hot water safely.

High Engineer only £350-£550

Parts commonly replaced

  • Main Printed Circuit Board (PCB)
  • Wiring harness
Full explanation for PCB FAULT
PCB REPLACED

Your boiler has recently had its main circuit board replaced and simply needs to be rebooted to confirm the change.

Low DIY-safe

What to check first

  1. Locate the 'RESTART' button on the boiler control panel
  2. Press the 'RESTART' button firmly once
  3. Wait for the boiler to complete its startup sequence and return to the normal display screen

Parts commonly replaced

  • Printed Circuit Board (PCB)
Full explanation for PCB REPLACED
SERVICE DUE

Your boiler is working correctly, but it has been a year since its last official check-up and it is now requesting its annual safety service.

Low DIY-safe £80-£120

What to check first

  1. Check your boiler service records to see when the last professional inspection was conducted
  2. Contact a Gas Safe registered engineer to book an annual service
  3. Once serviced, the engineer will reset the service interval timer

Parts commonly replaced

  • Burner door seal
  • Spark electrode
  • Condensate trap O-ring
Full explanation for SERVICE DUE