Rafal Kaczynski
Deae Darlene. Please check all TRV if you have fitted any for temp settings.( Mark 3 )If they set up correctly than check all lockshield valves. Try to open them up to max and than close it to 1/4 ( turn anticlockwise. )If this won't help possibly you have a sludge build up in your system and it will required power or chemical flushing.
