Troubleshooting

What does it mean if I see a flashing 'Ot' on my Comfort Touch?: This means that OpenTherm® communication between the thermostat and boiler is not responding. Check the thermostat’s connection to the boiler. Please contact your installer if in any doubt.

Find your installer
What does it mean if I see a flashing 'F' on my Comfort Touch?: This means the boiler has a fault. The ‘F’ symbol may or may not be followed by either a single- or double-digit code. Please consult your boiler’s user manual for an explanation of this fault code. Please contact your installer if this doesn’t resolve your problem.

Find your installer
What does it mean if I see a flame symbol on my Comfort Touch?: The flame symbol means your boiler is currently heating.
What should I do if I only see a dot on my Comfort Touch?: It’s up to you whether you want your Comfort Touch to display a fixed room temperature, or not. Adjust this setting on your Comfort Touch’s configuration screen. Press the ‘+’ and ‘–’ symbols simultaneously for two seconds to enter this configuration screen. Using the ‘+’ and ‘–’ symbols, advance to the ‘Stby’ screen. Select either ‘On’ (room temperature displayed by default) or ‘Off’ (room temperature hidden by default).
What should I do if the screen is blank?: If your Comfort Touch’s screen is blank, then it’s not getting any power. Plug in your boiler and check the cables and connection to the thermostat.

View the frequently asked questions about other topics or ask us your question.

Information