Zarir Ghasemi
if you get cold water at reasonable pressure from the shower, lights on shower stay on, then problem is with shower. if water pressure in house is ok but not great at shower, guess the inlet filter has blocked and you need the plumber to open the water connection and check this. it should be a very straight forward job to find out what is wrong. post a job at rated people with all details, u will get the right person to fix it. regards zarir
