Low Pressure(Advice for error codes Vaillant F22, Ideal F1 and Worcester A1)
Do you have low pressure or a low pressure error code showing up on your boiler?
1Establish which type of filling loop you have - is it built into the boiler or external from the boiler?
2Operate the filling loop by opening the valve(s) slightly, allowing the water to flow into the system. Increase the pressure to 1.5 then shut off the valve(s).
3Depending on your boiler, the following video from Vaillant may be helpful.
Filling a system with built-in controls:
(Advice for the following boiler error codes: Vaillant F77, Ideal L2 and Worcester EA)
1Use hot, not boiling water, and pour this onto the condensate pipe.
2Repeat until the blockage has been cleared.
3Reset your boiler.
Helpful boiler care videos from Worcester and Ideal:
Worcester: Thawing & Prevention
Ideal: How to Defrost a Frozen Condensate Pipe
How to Bleed Your Radiator(Advice for error codes Vaillant F22, Ideal F1 or Worcester A1)
Is your radiator cold on the top? This requires bleeding – follow the steps below.
1Use a bleed key and open up the bleed vent on the radiator slightly (not fully).
2Air will rush out.
3Keep the vent slightly open until water runs out (use some tissue or an old rag to catch the water). Don’t open the vent fully.
4If you have a pressurised system, you will need to top up the pressure to 1.5 bar. Follow the steps under ‘Low Pressure’ above.
If your radiators are still not working, call us on 0333 00 900 90 and we will send an engineer to look at this.
Other Radiator Issues
Radiator not working? Follow the steps below to see if you can fix it yourself!
1Check radiator valves are open.
2Thermostatic radiator valves have numbers on them – make sure the number is higher than 1, and keep turning this up until you are happy with the temperature.
3Lock shield valves must be turned left to open them. If they will not turn, they are fully open.
4Check the radiator has been bled using the steps under ‘How to Bleed Your Radiator’ above.
Still having heating problems? It could be an airlock:
- Make sure the valves are open on the boiler
- Make sure you have tried to bleed it
- Turn off all other radiators in the system
- You may hear a gurgling sound
Visit the following websites for advice on using your boiler’s controls:
Salus RT310i Manual:
Salus IT500 Manuals:
Salus IT500 Manuals:
Emergency Contact Numbers
If you are still experiencing boiler problems, the following numbers may be useful:
If you smell gas or suspect you have a gas leak, please contact National Grid on 0800 001 999
If you are seeing an error code on Vaillant boiler display, please contact them on 0344 736 0049 or alternatively visit https://www.vaillant.co.uk/homeowners/
If your Ideal boiler display is showing an error code, please contact them on 01482 498663 or alternatively visit https://idealboilers.com/
If you are seeing an error code on your Worcester boiler display, please contact them on 0330 123 3366 or alternatively visit https://www.worcester-bosch.co.uk/
If you are having issues with your Salus controls and require technical assistance, you can contact them on 01226 323961 or visit their website https://salus-controls.com/uk/contact/