Fault Finder - Mixer Showers

My shower drips from the shower head or/and shower valve

  • Shower valve requires seal kit or new cartridge


Water too hot

  • Cold water supply blocked or restricted
  • High volume of cold water may be getting drawn off elsewhere


Water too cold

  • Hot water supply blocked or restricted. Check the filters
  • Insufficient hot water supplies from the heating system


I have difficulty in turning my shower on/off the knobs are sticky

  • Shower valve requires seal kit or new cartridge


The temperature of my shower will not stay steady

  • Have boiler checked if combi type
  • May require new thermostat
  • May require new thermostatic cartridge


There is a poor flow of water from the showerhead

  • Clean showerhead
  • May be blocked or faulty hose
  • Inlet filters in shower valve may be dirty


Obviously we cannot cover all faults here as this is only the basics and some faults are specific to your model of shower. Remember that most shower repairs will require a fully qualified professional and you should not attempt to make a repair unless you know what you are doing and accept responsibility for your actions. The Shower Doctor accepts no responsibility for any personal or physical damage caused by following our advice.