- Ideal Isar He30 Boiler Manual
- Ideal Isar He30 Boiler Installation Manual
- Ideal Isar He30 Boiler User Manual Diagram
- Ideal Isar He30 Boiler User Manual Download
Apr 08, 2016 5 Common Faults of an Ideal Boiler and How to Fix Them. I have a ideal isar he30, just replaced the trap after being blocked up with sludge, my new problem is the. Ideal Boiler Manuals. Listed below are all the manuals for Ideal. Just click on the model or the Gas council number and the manual will download at the bottom of the page. After you have downloaded the manual double click on the download for the manual to open, if you want to save the download right click. If you require the user manual.
Is your Ideal Isar boiler not working? Below is trouble shooting advice for guidance. If you require an Ideal boiler repair then please give us a call and we’ll send you a Gas Safe service engineer to repair your boiler.

Isar Boiler Fault Codes
Boiler is not working for central heating or hot water
- Check there is power to the boiler – switch (A) in the ON position and ‘0 ’ displayed on the controls
- If ‘0 ’ not displayed then not a boiler fault – contact your installer/service company
Boiler is not working for central heating or hot water but attempts to fire by going through 3 ignition attempts and the display shows ‘L : F’ (flashing).
- Press reset button (D) for 2 seconds to repeat ignition sequence
- Check gas supply (try another appliance – cooker/fire etc.) – If no gas supply then not a boiler fault – contact gas supplier
- Check condensate pipe is not blocked or frozen. If blocked, clear blockage – if not possible to check contact your installer
Boiler is not working for central heating or hot water and the display shows ‘L:A’ (flashing).
- Press reset button (D) for 2 seconds, the boiler should then re-light. If fault recurs this indicates an overheat condition. The boiler should be turned off and your installer contacted
- Check if ALL radiators have thermostatic radiator valves fitted. If they have book a boiler repair
Ideal Isar He30 Boiler Manual
Boiler is not working for central heating or hot water and the display shows ‘H:A’ (flashing).
- Check if ALL radiators have thermostatic radiator valves fitted. If they have book a boiler repair
Boiler is not working for central heating or hot water and the display shows ‘H:A’ (flashing).
- Check pressure gauge on boiler shows a minimum of 1 bar. If not re-pressurise via the filling loop to 1 bar (if unsure contact your installer), turn off the tap on the filling loop and turn the on/ off switch (A) off and then back on again to reset the boiler. If unable to do so or if the pressure continues to drop after filling then book a boiler repair
- Check if ALL radiators have thermostatic radiator valves fitted. If they have then book a boiler repair
Ideal Isar He30 Boiler Installation Manual
Boiler will not fire for central heating.


- Check external programmer is set to an ‘ON’ period
- If already set to an ‘ON’ period then check the programmer by setting to continuous if boiler then fires – Contact your installer to rectify the programmer
- Check room thermostat by turning fully up, If ‘0’ is not displayed on the user controls then book a boiler repair
Boiler comes on for domestic hot water without a tap being opened – the display shows ‘D’.
- Check for dripping / dribbling taps or showers – turn fully off
- Check for leaks from the domestic hot water pipework and if found contact your installer
Boiler fires occasionally for approx. 2 minutes – the display shows ‘t’.
- This is a normal function of the boiler to periodically pre heat the plate heat exchanger to optimise delivery time for domestic hot water to taps or showers
Ideal Isar He30 Boiler User Manual Diagram
Ideal Isar He30 Boiler User Manual Download
Download a copy from our library, if your boiler is not listed Contact us and we will do our best to help you.