Mira Sport Thermostatic 9 kW?
My shower had stopped working - no water coming out at all and no solenoid "clunk" on power up. Water supply was OK and the filter was clean. I therefore replaced the flow valve assembly 1563.540 and now the water is flowing apparently normally, however the low flow light illuminates at anything above a low power setting. Have tried without shower head and / or hose attached and this makes no difference, and incoming water seems OK.
Howard, November 2014