Ideal Boiler Error Codes
Occasionally some things can go wrong, that’s why Gas Heating Solutions have created a table of Ideal error codes (below)
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Ideal Boiler Error Codes
Listed below are some error codes that could appear on your Ideal boiler.
| Fault Code | System Behaviour |
| C0 | BCC Activation Fault |
| C2 | BCC Fault |
| F1 | Low Water Pressure |
| F2 | Flame Loss |
| F3 | Fan Fault |
| F4 | Flow Thermistor |
| F5 | Return Thermistor |
| F6 | Outside Sensor Failure |
| F7 | Low Mains Voltage |
| F9 | Unconfigured PCB |
| L1 | Flow Temperature Overheat or No Water Flow |
| L2 | Flame Loss |
| L5 | 5 Boiler Resets in 15 minutes |
| L6 | False Flame Lockout |
Ideal Boiler Error Descriptions
Listed below are some error Descriptions that you could be facing on your Ideal boiler.
| Fault Description | cause |
| Overheat Lockout | Go to Frame 82 Overheat Lockout |
| Ignition Lockout | Go to Frame 83 Ignition Lockout |
| Flame Loss | Go to Frame 84 Flame Loss |
| Thermal Fuse Lockout | Reset Boiler |
| Too Many Resets | 5 Resets within 15 minutes Turn power off and on |
| Flame on before Gas Valve on | Go to Frame 86 Flame On before Gas Valve On |
| Flow Thermistor Fault | Go to Frame 87 Flow Thermistor Fault |
| outside sensor fault | Go to Frame 87 Flow Thermistor Fault |
| Return Thermistor Fault | Go to Frame 89 Return Thermistor Fault |
| Fan Fault | Go to Frame 90 Fan Fault |
| PCB Replaced Incorrectly | Ensure BCC fitted correctly Ensure correct BCC fitted |
| Low Mains Voltage | Less than 160V to boiler Check voltage at boiler mains in Check if local generator 10V Contact Electricity Provider |
| Low Water Pressure | Fill System to 1 Bar Bleed Radiators Refill System to 1 Bar |
| Flow/Return Reversed | Check if Flow Thermistor correctly clipped to pipe Replace Flow Thermistor |
| No Water Flow | Go to Frame 92 No Water Flow Fault |
| PCB Replaced | Reset boiler by pressing r |
| No Connection to Primary PCB | Unblock Pump |
| Pump Rotor Blocked If fault persists | Go to Frame 93 No Connection to Primary PCB |
| NO CH BUT DHW OK | Go to Frame 94 No CH but DHW OK |
| NO DHW BUT CH OK | Go to Frame 95 No DHW but CH OK |
| BLANK DISPLAY | Go to Frame 96 Blank Display |
| FLOW TEMPERATURE SETPOINT CANNOT BE INCREASED TO 80ºC | Ensure Flow Temperature is not limited within Installer Mode (see Frame 37 |
| PUMP RUNS DURING THE NIGHT | Ensure System Frost Protection Temperature Setpoint is not set too high (see Frame 40) |
| Has PCB just been replaced? | Reset Boiler |
| Are the Boiler and CH/DHW system filled with water and are all Isolation Valves and Radiator Valves open? | Fill and vent the system and open alI isolation Valves, then Reset the Boiler |
| Is the Flow/Return Differential across the boiler in excess of 30c | Check the Flow and Return Thermistors(refer to Frames 87 & 89) |
| 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 (refer to Frame 59). Check if the Condensate Pipe is Blocked |
| is the gas pressure available at the boiler > 18mBar | Check Gas Supply and rectify fault |
| is 215Vdc available at the gas valve during ignition | Check wiring from Gas Valve to 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 |
Ideal Boiler Error Codes
Listed below are some error codes that could appear on your Ideal boiler.
| 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 |
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Ideal Logic Max System / Logic Plus System Boiler Error Codes
Listed below are some error codes that could appear on your Ideal Logic Max or Logic Plus system boiler.
| 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 OR 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 OR L9 OR F8 OR L8 | PCB unconfigured or fault |
| FU | Diff greater than 50c check isolation valves are open |
| NO CH | Contact an installer |
| NO HW | Contact an installer |
| NO DISPLAY | Contact an installer |
Ideal Logic Max Plus Combi Boiler Error Codes
Listed below are some error codes that could appear on your Ideal Logic Max or Logic Pro Combi boiler.
| Fault Description | System Behaviour |
| Overheat lockout | Bleed radiators refill system to 1.0 bar check radiator valve on boiler valves are open reset boiler if fault continues contacts an installer |
| Ignition lockout | Check gas appliances work and restart boiler |
| To 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 |
| Flame loss | Flame loss |
| Fan fault | Fan fault |
| Flow thermistor fault | Flow thermistor error |
| Return thermistor fault | Return thermistor error |
| Outside sensor fault | Outside sensor error |
Ideal Logic Max / Logic Plus Regular Boiler Error Codes
Listed below are some error codes that could appear on your Ideal logic max or logic plus regular gas boiler.
| Fault Description | System Behaviour |
| L1 | Flow temperature overheat lockout or no water flow lockout |
| L2 | Ignition lockout |
| LC | 5 restarts within 15 minutes Turn power off and on |
| L6 | False flame lockout |
| FA | Flow return reversed |
| FD | No water flow |
| F2 or 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 OR L9 OR F8 OR L8 | PCB unconfigured or fault |
| FU | Diff greater than 50c check isolation valves are open |
| NO CH | Contact an installer |
| NO HW | Contact an installer |
| NO DISPLAY | Contact an installer |
Ideal Vogue Boiler Error Codes
Listed below are some error codes that could appear on Ideal Boiler.
- Vogue max combi
- Vogue max system
- Vogue combi gen2
- Vogue system gen2
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