Hi,

We've got an Alpha HE CB25, came home today after a weekend away to find a cold house and discovered the Green and Red lights flashing alternatively. Realised this was due to low pressure to so re-pressurised using the valves under the boiler. Gauge went into green zone, no joy. Gauge went above green zone, still no joy so bled all the radiators. Then bled them to get the pressure bar back down into the green zone and it's still not working.

We've tried, re-setting, turning on and off, increasing and reducing the pressure and the lights keep flashing.

Can anyone suggest anything else we can do to get the boiler kicked into life?

Thanks,

Remove the connections on the pressure sensor then put them back. Occasionally these have a bad contact.

If this don't work you need a new pressure sensor.

_________________
Dave

www.drlgas.co.uk

Thanks Dave - would you know whereabouts this is located? Looked at the schematics and can't find a 'pressure sensor'. Also, I presume we won't need to drain the system just to check these?

Thanks