by htg engineer »
Fri Feb 15, 2008 8:59 pm
Turn both valves anti-clockwise to open them, this will probably mean removing the lockshield valve cover and using a spanner or water pump pliers to open.
If it still doesn't heat, try turning off a few of the other radiators to see if it will push through - if not, the valves may be faulty, airlock or blockage in pipework.