Shower mixer cannot regulate and is only hot or cold?

If its a new installation it is possible that the hot and cold pipes are mixed up. If it is possible to remove the facia of the shower after it has been run hot you can feel which is the hot pipe. there should be a red and blue mark on the inlets to the mixer. If tehre are no marker you will hadve to turn off the stop-cocks to the pipes and just swap them to see.

rory
May 2005