- Ideal Boiler Error Codes
Ideal Boiler Error Codes
Listed below are Ideal boiler fault codes and Ideal boiler Manuals.
Fault Code
|
Boiler Symptoms
|
---|---|
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 |
- To get your Ideal Boiler Repaired, call us today on Cardiff 02920 140240

Fault Description
|
Cause of Problem
|
---|---|
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 80ÂșC | 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 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 |
- To get your Ideal Boiler Repaired, call us today on Cardiff 02920 140240

Fault Description
|
Boiler Symptoms
|
---|---|
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 |
- To get your Ideal Boiler Repaired, call us today on Cardiff 02920 140240

- Call for a Boiler repair today on Cardiff 02920 140240
Call for a Boiler repair today on Cardiff 02920 140240

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