• 1. Cold radiators upstairs can be caused by low water levels in the feed and expansion tank in the loft.
  • 2. This is usually caused by water levels in the system being low. Check to see if the feed and expansion tank in the loft is empty or if the level is low. This is fed by a ball valve of a type similar to those found in toilet cisterns. If the water level is too low then gently pushing down on the ball will open the valve and allow fresh water into the tank and then into the system.

    If this doesn't cure the problem, then contact us to arrange an engineer visit.
  • We update the maintenance tips and troubleshooting guidance from time to time and aim to make it as helpful as possible. The purpose of the maintenance and troubleshooting section of this website is to provide you with general guidance. Please ensure you read and follow our instructions carefully and do not undertake the maintenance or troubleshooting unless you are aged 18 or over, are competent to do so and are confident that you can complete the maintenance. If in doubt do not attempt any actions and where an appliance is gas fuelled refer to a Gas Safe engineer for assistance.

    This website is not intended to be a substitute for professional advice and does not:
    - cover every reason that your product could fail;
    - cover all of the maintenance that can be undertaken for your product;
    - supersede any advice in your instruction manual or from your product manufacturer.

    Do not carry out any maintenance or use the troubleshooting guide if it puts you or anyone else in danger or if you believe it may cause damage to your, or another person’s property.