Has your ideal logic boiler broken down and you have error codes showing up but you do not know what they mean?
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Ideal Logic Boiler Error Codes
| 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 Logic Boiler Error Description
| Fault Description | Reason |
|---|---|
| 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 Temp Cannot Be Increased To 80 | Ensure Flow Temperature is not limited within Installer Mode (see Frame 37 |
| Pump Runs During 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 waterand are all Isolation Valves and Radiator Valves open? | Fill and vent the system and open allIsolation 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 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 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 Logic 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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